• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    submersible power supply apparatus. a submersible power supply apparatus provides the ability to provide power to recharge batteries used to operate underwater, manned and unmanned vehicles. a battery charging station apparatus containing at least one modular backup battery tank with a plurality of compartments is provided. a plurality of battery backup modules may respectively be provided in the plurality of compartments, each of the plurality of battery backup modules being configured to supply power when a battery backup provided therein is activated.
    公开号:BR112015007103B1
    申请号:R112015007103-1
    申请日:2013-08-07
    公开日:2021-08-17
    发明作者:Gregory L. Miller；Michael A. Parrot；Dharmesh H. Bhakta；Jeffrey C. Dermott；Dennis DIVINE
    申请人:Eaglepicher Technologies, Llc；
    IPC主号:
    专利说明:

    Field of Invention
    [0001] This non-provisional application claims the benefit of US Provisional Application No. 61/680,518, filed August 7, 2012.
    [0002] The present invention relates to the underwater charging of batteries for underwater applications and vehicles, using battery power provided by the charging station. Background of the Invention
    [0003] This disclosure relates to a subsea charging apparatus having multiple battery backup modules to provide power in remotely accessible applications, and its use. An example of such an application is providing power (eg backup power) for a subsea electrical power function such as in remote coastal areas where electrical power is needed for many purposes such as replenishing power via direct current to an underwater vessel (manned and unmanned manned, including military applications).
    [0004] Due to the energy requirements required in underwater conditions to charge underwater vehicles, battery choice becomes a key factor. Over time, primary batteries degrade causing a decrease in the batteries' ability to hold a charge and provide charging for a charge. Due to the activation state of the primary battery, the battery will lose effectiveness as the battery ages. Similarly, rechargeable batteries degrade over time. Although rechargeable batteries have the ability to be recharged, these batteries lose their ability to maintain the same amount of original charge as the battery ages and/or is used. In addition, rechargeable batteries require knowledge of what the battery needs to be recharged as well as the time/ability to recharge the battery. The invention is applicable to any electrical power function that requires the use of a battery that can degrade over time.
    [0005] Due to the harsh environments found in subsea applications (including deep water) such as salt water and high external pressure, critical subsea power applications require an electrical power source capable of ultra high reliability and ultra low maintenance and ease of remote replacement without carrying the device to the surface.
    [0006] To increase the operating ranges and durations of underwater vehicles between charges, particularly those performing critical work or operating in remote or hazardous areas, it is desirable to have the ability to install underwater charging stations that effectively extend the operating capacity of vehicles. It also optimizes vehicle battery life while increasing overall vehicle safety and efficiency.
    [0007] In view of the above, it is desirable to provide a source of electrical power for diverse applications using a plurality of backup batteries that are easily and remotely replaceable. summary
    [0008] Backup batteries are primary batteries that are inert until the battery is activated and used. More specifically, the active chemical components of a backup battery are inactive until such time as the battery is needed, thereby facilitating long storage life. As such, backup batteries are useful for applications that require extended storage time because they prevent deterioration of active materials during storage and eliminate loss of capacity due to self-discharge. Backup batteries can be stored for 20 years or more and still provide full power when needed.
    [0009] Thus, it is desirable to provide a battery backup system having backup batteries that do not deteriorate when stored for long periods of time so that the batteries will be immediately ready for use in critical situations.
    [0010] The structure and operation of backup batteries is described in more detail in US order Nos. 13/735,480 and 13/760,746, the disclosures of which are hereby incorporated by reference.
    [0011] It would be advantageous to provide an apparatus and method for providing power from battery backup modules to drive, for example, a subsea system. In a preferred embodiment, replaceable battery backup modules are provided that are electrically connected to a control system of an apparatus that triggers the charging station when the backup batteries are activated. In this way, battery backup modules can be activated during critical situations when the normal power source cannot provide adequate power to an appliance. In addition, as battery backup modules are single-use devices, it would be advantageous to provide battery backup modules that are adapted to be easily replaced in your usage environment, which, for example, can be a severe high pressure subsea environment. In addition, due to different power requirements, it is also desirable to provide multiple battery backup modules so that one or more battery backup modules can be activated as needed. In addition, rechargeable batteries and electronic means of charging can be provided in addition to charging station backup batteries as backup or supplemental power.
    [0012] Batteries are of a modular design as a group of batteries to accommodate replacement in the charging station or installation of extra batteries.
    [0013] Primary battery modules can be used as an option in addition to backup batteries.
    [0014] To provide maximum flexibility in charging, especially in remote conditions or where access to charging is limited, rechargeable batteries can be installed as an option for supplemental power and/or backup battery backup, thereby providing additional power capabilities . Rechargeable chemicals, including nickel-hydrogen, lithium ion, lead acid, and nickel-cadmium electrochemistry, can be used in marine-style, pressure-resistant, sealed housings. For example, batteries such as hermetically sealed hydrogen-nickel cells and batteries have a heritage of providing safe spacecraft energy in critical applications with environmental extremes where maintenance is not possible, offering multiple years of longevity. Similarly, lithium ion batteries offer high energy output with low self-discharge, and little or no maintenance required. In one embodiment where rechargeable batteries are employed, the rechargeable batteries can be recharged through external sources which may include renewable energy such as wave, wind and solar energy.
    [0015] In another embodiment, the underwater charging station may contain reserve batteries, primary batteries, and rechargeable batteries, individually or in any combination thereof.
    [0016] The subsea charging station can be configured with a wide variety of external attachments to aid the charging of underwater vehicles. For example, lighting can be added to assist in dimly lit areas on the seabed. In alternative embodiments, buoys, global positioning locators, or sonar and radio beacons may be provided to assist in locating a charging station. Anchorage and stability fixtures can be deployed to ensure the charging station remains properly positioned on the seabed. Various attachments attached such as robotic arms, miniature UAVs, or other docking device can help interface with vehicles, by aiding the vessel maneuvering to the charging station, or extending charging capacity beyond the charging station directly to the vehicle. Protective wraps or covers can also be used as needed.
    [0017] Additionally, electrical panels for connecting vehicles to the charging station can offer a variety of means of connection, using connectors of various types.
    [0018] In addition to offering the ability to recharge underwater vehicles, the submersible power supply apparatus can be used to recharge or provide critical support power for a variety of oceanic applications where secure remote power is required, both underwater and on the surface. For example, recharge or backup power can be supplied to remotely installed stationary marine equipment related to public safety, such as for instructions that monitor hurricanes and severe weather conditions, or equipment to detect tsunamis, seismic activity or pollution. Other potential applications may include powering scientific instruments used to measure marine environmental conditions pertinent to fields such as oceanography, meteorology and climatology. In addition, charging station variations can be configured for use in subsea natural gas and oil drilling to provide charging for applicable equipment used in those industries. Military applications such as those related to offshore surveillance or defense can also be used, in which case camouflage or security measures for the charging station can be used.
    [0019] According to an embodiment, a power supply apparatus is provided that has at least one modular backup battery tank that is provided with a plurality of compartments. A plurality of battery backup modules respectively can be provided in corresponding compartments of the plurality of compartments. Each of the plurality of battery backup modules is individually replaceable. Each of the plurality of battery backup modules can be configured to provide power when a backup battery provided in it is activated. Each battery backup module of the plurality of battery backup modules may include a sleeve and a backup battery provided in the sleeve. The sleeve can be configured to fit into one of the plurality of compartments in a predetermined orientation. Each sleeve may be detachably connected to any compartment of the plurality of compartments and may include electrical connections so that each battery backup module of the plurality of battery backup modules is separately replaceable while the underwater charging station apparatus remains remotely located.
    [0020] In an exemplary embodiment, the charging station apparatus may include an electrically actuated control system to control the charging station. The charging station apparatus may also include a communication unit which communicates when at least one battery backup module of the plurality of battery backup modules is activated. The communication unit can be configured to communicate with an external control unit to remotely control the electrically driven control system. The communication unit may also be configured to communicate an output power from a battery backup module activated from the plurality of battery backup modules. The electrically powered control system can activate a predetermined number of battery backup modules depending on the amount of power required.
    [0021] In another exemplary embodiment, the plurality of compartments in at least one battery reserve can include at least five compartments that are linearly aligned. At least one battery backup tank can include a cable provided on a side surface of the tank.
    [0022] According to an aspect, a first backup battery tank can be attached to a base plate and at least a second backup battery tank can be attached to the first backup battery tank on a side opposite the base plate on a stacked array. Each of the battery backup bins can be fitted with one of a guide rail and notch to facilitate stacking. Battery backup tanks can be screwed together.
    [0023] According to another aspect, the apparatus may include four spare battery tanks that are stacked on top of one another to form a set of compartments, at least some of the compartments in the array having spare battery modules disposed therein.
    [0024] According to yet another aspect, an opening of each compartment may have a beveled edge to facilitate the installation of each sleeve in each compartment. Each sleeve may include a notch and an o-ring provided in the notch to lock each sleeve in place inside the tank compartment. In addition, each compartment may include a notch that aligns with the notch and o-ring provided on the sleeve when each backup battery module is provided in the predetermined orientation. Each glove can also include a guide rail to facilitate placement of each glove in a corresponding storage compartment on the backup battery tank. Each sleeve can have a beveled edge to facilitate installation of each sleeve in each compartment. Each glove can be fitted with a handle configured to be held by a robotic grip.
    [0025] According to yet another aspect, the backup batteries in the plurality of backup battery modules may be selected from a group including iron disulfide/lithium alloy thermal batteries, molten salt high temperature thermal batteries, silver zinc, and lithium/oxyhalide batteries.
    [0026] According to yet another aspect, each battery backup module of the plurality of battery backup modules may include an electrical activation. Alternatively, each battery backup module of the plurality of battery backup modules may include a mechanical activation.
    [0027] According to yet another aspect, the electrical connections can be waterproof connections, resistant to high pressure. The power supply apparatus may be provided in a system that is at least one of an electrical power load distribution point, a hybrid power system and a critical system.
    [0028] In one aspect, a primary battery can be electrically coupled to the control system. The backup batteries in each of the plurality of backup battery modules may be backup batteries that are connected to the primary battery so that the backup batteries are only used when the primary battery is not able to support power requirements.
    [0029] In another embodiment, a method of providing backup power with a power supply apparatus is disclosed. The method may include electrically substitutable coupling at least one battery backup module of a plurality of battery backup modules in a respective compartment of at least one battery backup storage having a plurality of compartments, the at least one battery backup being supplied in the power supply apparatus. At least one battery backup module can be configured to provide power when a battery backup provided in it is activated. At least one battery backup module can include a sleeve and a backup battery that is provided inside the sleeve. The sleeve can be configured to fit into one of the plurality of compartments in a predetermined orientation. The sleeve is detachably connectable to any compartment of the plurality of compartments and includes electrical connections so that at least one spare battery module is separately replaceable while the power supply apparatus remains remotely located.
    [0030] According to an aspect, the method may include communication when at least one battery backup module is activated. The method may also include receiving a command from an external control unit to remotely activate at least one battery backup module. In addition, the method may include communicating an output power from a battery backup module activated from the plurality of battery backup modules. In addition, the method may include activating a predetermined number of battery backup modules from the plurality of battery backup modules depending on a required amount of power.
    [0031] The submersible power supply apparatus may have multiple charging outputs in the form of connectors. Connector types can include waterproof D-type connectors, among other varieties applicable to underwater vehicles. Adapters to assist with interface can also be used. Optional umbilical connections for interfacing with underwater vehicles can additionally be included.
    [0032] The structure of the submersible power supply apparatus can be constructed of marine-type materials. The structure can use attachment points to lower and position the charging station on the seabed via ships, submersibles or aircraft, with the option to recover the charging station.
    [0033] The submersible power supply apparatus may be scalable in size depending on the energy requirements and anticipated application requirements.
    [0034] Optionally, telemetry from the submersible power supply apparatus can be monitored by underwater vehicles and/or facilities for diagnostic data and information, transmitted through cables or wireless means.
    [0035] As an option, electrical inverters can be installed for power conditioning purposes. Other components, used individually or in combination, can include transformers and capacitors.
    [0036] In an exemplary embodiment, two or more of these subsea charging stations can be electrically interconnected in the field, offering the ability to utilize a remote grid of multiple charging stations with an increased amount of available energy for charging underwater vehicles.
    [0037] Any number of various external fixtures can be used in combination with the charging station to aid underwater charging, including but not limited to lighting, global positioning transmitters, sonar/radio beacons, robotic arms, docking apparatus , and UAVs attached to the charging station to interface with other underwater vehicles to provide charging. Additionally, security and/or camouflage features applicable in military applications can also be used.
    [0038] Additionally, subsea charging stations can be configured to interface with applications other than underwater vehicles, including the ability to supply power to instruments and equipment on or anchored to the seabed. Brief Description of Drawings
    [0039] Several exemplary embodiments of the disclosed subsea charging station apparatus and method will be described in detail with reference to the following drawings in which:
    [0040] Figure 1 illustrates a perspective view of a submersible power supply apparatus according to an embodiment;
    [0041] Figure 2 illustrates a perspective view of reserve batteries of the submersible power supply apparatus according to an embodiment;
    [0042] Figure 3 illustrates a reserve battery store of the power supply apparatus according to an embodiment; and
    [0043] Figure 4 illustrates a schematic diagram of how the submersible power supply apparatus and an external device communicate according to an embodiment. Detailed Description of Achievements
    [0044] Exemplary embodiments are provided of apparatus and methods for using backup batteries to provide supplemental or backup power for, for example, subsea applications. The invention is applicable to numerous subsea applications including, for example, electrical power load distribution point, hybrid power systems, and any critical system support such as for connecting (or supplying backup power to) emergency explosion protection. Thus, although an embodiment is described as used in a subsea application, the described embodiment is exemplary only. Other embodiments may be applicable to various emergency situations, long-term storage situations, and situations that require battery/battery reliability.
    [0045] Figure 1 is a perspective view of the submersible power supply apparatus 10 according to an embodiment. As seen in Figure 1, the submersible power supply apparatus 10 includes a plurality of battery backup modules 40 in the battery backup canisters 20, the battery backup canisters 20 being stacked one on top of the other. Submersible power supply apparatus 10 may optionally include primary or rechargeable battery modules 15. In addition, as seen in Figure 1, submersible power supply apparatus 10 includes an electrical interface panel 25 and control electronics 35 for monitoring and control battery backup modules 40.
    [0046] It is preferable that the battery backup modules 40 are individually removable from and attachable to the battery backup tanks 20, for example, via an ROV. It is also preferable that the battery backup tanks 20 are detachable from and attachable to each other, eg via the ROV. It is preferable to make the battery backup modules 40 removable/fixable (i.e., replaceable) so that the battery backup modules 40 can be replaced, for example, at the subsea location (for example, on the ocean floor). When battery backup modules 40 are used in a subsea application that will continue to operate even after battery backup modules 40 have been activated, it will be necessary to replace the used battery backup modules 40 with new ones after the old (used) battery modules 40 have been activated. In this way, making the battery backup modules 40 and battery backup tanks 20 easily replaceable will avoid the need to remove the entire system powered by the power supply apparatus from the subsea site simply to replace the backup batteries.
    [0047] The backup battery module 40 can be, for example, a lithium alloy/iron disulfide thermal battery, a molten salt high temperature battery (also called thermal battery), a silver zinc battery, or a oxyhalide/lithium battery. In one embodiment, the backup battery module 40 is a thermal battery. However, the backup battery is not limited to a thermal battery. Instead, the battery backup can include any electrochemical configuration that allows for the segregation of the cell's active chemicals so that activation of the battery is required before the battery becomes functional. An example of a backup battery can be found in US Patent No. 7,504,177, the disclosure of which is hereby incorporated by reference in its entirety.
    [0048] The backup battery module 40 can be activated by an external input that causes the electrolyte, which is segregated from the other electrochemical components of the backup battery, to be released. Upon release of the electrolyte and contact with the other electrochemical components of the backup battery, power from the backup battery module 40 is available for use. As battery backup module 40 is not activated until needed, battery backup module 40 can be used in an emergency capacity.
    [0049] The external input required to activate the battery backup module 40 can be, for example, a short electrical trip/pulse via an electrical activation (not shown) or a mechanical input via a mechanical activation (not shown). A discrete electrical connection that will supply the electrical power to start the backup batteries can be used for an electrical activation. A push button or cable can be used for a mechanical activation. It should be understood that the above-described methods for activation are not limited thereby and that any suitable means for electrical and/or mechanical activation can be used. When the battery backup is a molten salt high temperature thermal battery, for example, the battery backup module 40 is activated by igniting a pyrotechnic heat source in the battery using electrical activation or mechanical activation.
    [0050] The primary battery modules 15 may optionally include a primary battery or a rechargeable battery or both in combination with the backup battery module 40. The rechargeable battery can be charged using energy generated from alternative energy and/or power plants. Alternative energy can be generated using wind energy or tidal energy. In another embodiment, backup batteries can be configured to supply power to rechargeable batteries and/or primary batteries. In another embodiment, backup batteries can be configured to supply power to storage capacitors.
    [0051] Figure 2 is a perspective view of the reserve batteries of the submersible power supply apparatus 10 according to an embodiment. Submersible power supply apparatus 10 may include a plurality of modular backup battery stores 20 that can be stacked on top of one another (and remotely secured together). The battery reserve tanks 20 can be secured together by means of tongue portions 80 provided on the side surfaces of each of the battery backup tanks 20. The tongue portions 80 allow the battery backup tanks 20 to be, for example, screwed on. together. As seen in Figure 2, the lower battery reserve 20 can be attached to a base plate 70. Each battery reserve 20 includes a plurality of compartments 30. Each of the compartments 30 can receive a battery backup module 40 In addition, each backup battery tank 20 can include a cable 60 that is provided on one side. Cables 60 are illustrated in Figure 2 as being on the left side of each of the battery backup tanks 60, but may be provided on the right side or on both sides. Figure 2 illustrates battery backup modules 40 provided in only one of the battery backup tanks 20; however, battery backup modules 40 may be provided in any or all of the compartments 30 illustrated in Figure 2. Figure 2 illustrates four battery backup tanks 20 stacked on top of each other; however, power supply apparatus 10 may include any number of battery backup stores 20 depending on the power requirements of a specific application.
    [0052] Figure 3 illustrates a reserve battery tank 20 according to an embodiment. As seen in Figure 3, the battery reserve 20 may have five compartments 30 each of which is configured to receive a battery backup module 40. Each of the compartments 30 may include a bevelled edge 110 and a guide slot 120 to facilitate the insertion and proper orientation of a spare battery module 40 into each tank compartment 30. Each tank compartment 30 may also have a slit 130 (a ring-shaped notch or slit) that serves as a locking mechanism for secure a corresponding backup battery module 40 in place. A top and bottom of each reserve battery store 20 may be provided with at least one guide rail 90 and at least one notch 100 to ensure that the reserve battery store 20 will be properly assembled and matched. Guide rail 90 may alternatively be provided at the top of the reserve battery tank 20 and notch 100 may be provided at the bottom. The reserve battery tank 20 can be formed from a polymer such as an acetyl copolymer or any other material that is suitable for the intended use environment. Cable 60 illustrated in Figures 2 and 3 is provided to allow a remotely operated vehicle (ROV) (not shown) to lock onto each backup battery tank 20 when it is desirable to remove/replace at least one between the backup battery tank 20 or one or more battery backup modules 40 provided therein.
    [0053] Figure 4 illustrates a schematic diagram of an example of how the power supply apparatus 10 can communicate with an external device. As seen in Figure 4, the power supply apparatus 10 includes the control system 160 and a communication unit 150. The communication unit 150 can communicate via wired or wireless communication with an external device 170. The system controller 160 can selectively activate one or more battery backup modules 40 depending on the amount of power required. Furthermore, the control system 160 can, via the communication unit 150, indicate to the external device 170 when and how many backup battery modules 40 have been activated. Furthermore, the control system 160 can, via the communication unit 150, indicate an electrical performance of an activated reserve battery module 40. Furthermore, the control system 160 can be remotely controlled by the external device 170.
    [0054] It is desirable that the battery backup tanks 20 and battery backup modules 40 are designed to withstand a frontal impact of a 3,855.54 Kg (8,500 lbs) ROV traveling at 0.26 m/s (0.5 knots) ). Furthermore, it is desirable that the battery backup tanks 20 and the battery backup modules 40 can withstand the impact of an object dropped once from 5 kJ over an area of 100 mm2.
    [0055] The illustrated exemplary embodiments of the apparatus and method for providing a backup power system set forth above are intended to be illustrative rather than limiting. Various changes can be made without departing from the spirit and scope of the invention.
    权利要求:
    Claims (20)
    [0001]
    1. Submersible power supply apparatus (10) characterized in that it comprises: a battery backup module (40); a modular battery backup storage (20) having a compartment (30) that houses the battery backup module (40); and a backup battery disposed in the backup battery module (40), at least one primary battery module (15); a rechargeable battery disposed in the at least one primary battery module (15); and an electrically actuated control system (160) for controlling the power supply apparatus (10), wherein the backup battery module (40) is configured to supply power under the condition that the backup battery provided therein is activated by the electrically actuated control system (160) and the rechargeable battery provides backup to the backup battery, where the rechargeable battery is recharged via an external source or an on-board battery source.
    [0002]
    2. Submersible power supply apparatus (10) according to claim 1, characterized in that the modular backup battery compartment (30) includes a plurality of compartments housing a plurality of backup battery modules, and a plurality of backup batteries each disposed in a corresponding one of the plurality of backup battery modules (40).
    [0003]
    3. Submersible power supply apparatus (10) according to claim 1, characterized in that it further comprises: a communication unit (150) that communicates when at least one backup battery module (40) of the plurality of battery backup modules (40) is enabled.
    [0004]
    4. Submersible power supply apparatus (10) according to claim 3, characterized in that the communication unit (150) is configured to communicate with an external control unit to remotely control the control system ( 160) electrically powered.
    [0005]
    5. Submersible power supply apparatus (10) according to claim 3, characterized in that the communication unit (150) is configured to communicate an electrical performance of an activated backup battery module (40) of the plurality of battery backup modules.
    [0006]
    6. Submersible power supply apparatus (10) according to claim 3, characterized in that the electrically actuated control system (160) activates a predetermined number of backup battery modules, depending on a required amount of power .
    [0007]
    7. Submersible power supply apparatus (10) according to claim 1, characterized in that the power supply apparatus (10) is provided as part of a subsea system, wherein the subsea system includes at least minus one of manned vehicles, unmanned underwater vehicles, distributed energy storage, and point-of-charge energy storage.
    [0008]
    8. Submersible power supply apparatus (10) according to claim 1, characterized in that the backup battery in the backup battery modules is selected from a group including lithium alloy/iron disulfide thermal batteries , molten salt high temperature thermal batteries, zinc and silver batteries, and lithium/oxyhalide batteries.
    [0009]
    9. Submersible power supply apparatus (10) according to claim 1, characterized in that the battery backup module (40) includes an electrical activation.
    [0010]
    10. Submersible power supply apparatus (10) according to claim 1, characterized in that the battery backup module (40) includes a mechanical activation.
    [0011]
    11. Submersible power supply apparatus (10) according to claim 1, characterized in that it further comprises a reserve battery which is a primary battery, in which the primary battery can be activated or deactivated.
    [0012]
    12. Submersible power supply apparatus (10) according to claim 1, characterized in that the external source comprises at least one of wave energy, wind energy and solar energy.
    [0013]
    13. Submersible power supply apparatus (10) according to claim 1, characterized in that the power supply apparatus (10) is provided in a system that is at least one of a power distribution point electric charging, a hybrid power system, and a critical system.
    [0014]
    14. Submersible power supply apparatus (10) according to claim 1, characterized in that the power supply apparatus (10) is provided in a subsea system which is arranged on a seabed.
    [0015]
    15. Submersible power supply apparatus (10) according to claim 1, characterized in that the power supply apparatus (10) is provided as part of a subsea system, wherein the subsea system supplies operational power to connected vehicles or stationary or mobile underwater devices.
    [0016]
    16. Submersible power supply apparatus (10), according to claim 1, characterized in that it further comprises: one or more primary batteries.
    [0017]
    17. Submersible power supply apparatus (10) according to claim 1, characterized in that the reserve battery provides backup for the rechargeable battery.
    [0018]
    18. Submersible power supply apparatus (10) according to claim 1, characterized in that the submersible power supply apparatus (10) is configured so that either the backup battery provides backup for the rechargeable battery or the rechargeable battery provides backup to the backup battery.
    [0019]
    19. Submersible power supply apparatus (10) according to claim 1, characterized in that it further comprises one or more primary batteries, wherein one or more primary batteries provide backup for the rechargeable battery or the reserve battery or a combination of both.
    [0020]
    20. Submersible power supply apparatus (10) according to claim 1, characterized in that it further comprises one or more primary batteries, wherein the rechargeable battery is recharged through one or more primary batteries.
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    同族专利:
    公开号 | 公开日
    AU2013335238A1|2014-11-20|
    EP2834865B1|2021-03-31|
    AU2013335238B2|2018-01-04|
    WO2014065926A4|2014-08-14|
    WO2014065926A3|2014-06-26|
    WO2014065926A2|2014-05-01|
    EP2834865A2|2015-02-11|
    US9531199B2|2016-12-27|
    US20140042975A1|2014-02-13|
    BR112015007103A2|2018-05-02|
    SG10201605505WA|2016-09-29|
    SG11201407202PA|2014-12-30|
    CN104396047A|2015-03-04|
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    法律状态:
    2018-11-21| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-05-05| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-06-01| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-08-17| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 07/08/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201261680518P| true| 2012-08-07|2012-08-07|
    US61/680,518|2012-08-07|
    PCT/US2013/053936|WO2014065926A2|2012-08-07|2013-08-07|Underwater charging station|
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