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Class 320/154 - Thermal switch (e.g., thermostat, bimetallic switch, etc.)


Subclass of Class 320 - Electricity: battery or capacitor charging or discharging
Definition: Subject matter wherein the means to detect temperature includes
No. of patents: 45
Last issue date: 12/07/2010


1    
NumberTitleIssue Date
7847522Battery device
A battery device includes a battery cell constituted by a secondary cell, a case that houses the battery cell, and a battery-side positive electrode terminal and a battery-side negative electrode terminal electrically provided in the case and connected to the batter...
12/07/2010
7438988Rechargeable battery with surface mounted temperature detector
Secondary battery structure 100 has secondary batteries 110 equipped with metallic battery cases 111 , temperature detectors 120 for detecting temperature of the secondary batteries 110 , and supporting members 130 for suppo...
10/21/2008
7358701Method and system for modeling energy transfer
A method and system for modeling or simulating an application environment so as to evaluate the effect of a selected battery and charger in the application environment. Sensors are used to gather data regarding the energy consumption needs of the application environ...
04/15/2008
7330013Apparatus and method for charging and discharging a battery
A method and apparatus for controlling the charge and discharge currents in a battery (2) as a function of temperature. When a battery (2) is charged or discharged in an environment that approaches its design operating temperature extreme, the currents...
02/12/2008
7239481Magnetic head having multilayer heater for thermally assisted write head and method of fabrication thereof
A magnetic head including a media heating device that is preferably fabricated within the magnetic head structure. The heating device preferably includes an electrical heating element and electrical leads, where an insulation layer disposed above the heating element...
07/03/2007
7180269Battery charging method
The battery charging detects battery temperature and includes a temperature maintaining charging operation wherein average charging current is controlled to drive battery temperature to a holding temperature, and charging is performed while maintaining battery tempe...
02/20/2007
7158815Apparatus and method for charging a mobile device from another mobile device
An apparatus and method for allowing a mobile device with a dead battery to be charged by another mobile device with a charged battery. The apparatus and method further provide for the prevention of damage to the batteries due to overcurrents that may occur due to b...
01/02/2007
7130666Cell phone charger with incoming call indicator
The present invention provides a battery charger for cell phones which operates off the cigarette lighter receptacle of a vehicle. The battery charger includes a visual indication that is activated by electromagnetic induction from the ringing current that is genera...
10/31/2006
6924620Battery, battery charger, electrical system and method of charging a battery
A battery, a battery charger, an electrical system, and a method of charging a battery. In one aspect, the battery includes a housing, a battery cell supported by the housing, a first terminal electrically connected to the battery cell and having a first terminal en...
08/02/2005
6649302Temperature sensing device for use in secondary battery pack, and secondary battery pack incorporating the same
A temperature sensing device for use in a secondary battery pack includes an NTC element and a current limiter element. The NTC element is disposed at a predetermined position to sense the temperature of a secondary battery incorporated in the secondary b...
11/18/2003
6646845Battery protection system and method
A battery protection system for a battery having a switching mechanism positioned intermediate to the positive terminal and an electrical load of the battery. A controller manipulates the switching mechanism between an open position and a closed position,...
11/11/2003
6534956Thermostatic automatic cutoff charging device
A rechargeable cell is connected in series connection with and thermally coupled to a usually closed thermo-sensitive circuit breaker, so that, once a temperature in the cell that is being charged to saturation rises to a predetermined level, the heat the...
03/18/2003
6346796Thermal shut-off device and battery pack
Contacts 3, 6, which are opened/closed by the displacement of a heat responsive element 7, are interposed between first and second terminals 2, 9, and a heat generating resistor 8 is interposed between the first terminal 9 and a third terminal 10, whereby...
02/12/2002
6081101Temperature switch controlled charging circuit
A battery charging circuit includes a temperature switch actuated when the temperature of a battery reaches a preset value as a result of the battery being charged to saturation. The temperature control switch causes the circuit to switch to a small curre...
06/27/2000
6060185Protective device for secondary batteries
The invention provides a protective device for batteries having a high energy density such as lithium ion batteries. The protective device comprises a battery voltage-monitoring means, an overcharge-detecting means for sending out a charge-finishing signa...
05/09/2000
5900719Battery pack charger having a fail-safe heat-sensitive switch for preventing overcharge
A battery pack charger has an external frame provided with an insertion slot for inserting a battery pack. A charging terminal and a charging control circuit are housed in the external frame. A heat-sensitive switch is provided between the charging termin...
05/04/1999
5834921Safety device for a portable battery-powered electric apparatus
A safety device for a portable battery-powered electric apparatus having a battery unit with one or more battery cells for supplying power to electric circuitry in the apparatus. The apparatus is connectable to a charging device for charging the battery u...
11/10/1998
5826958Apparatus for automatically conditioning rechargeable batteries
A circuit for conditioning a battery having a casing and battery charging terminals for charging the battery from an external power source. The conditioning circuit is preferably contained within the battery casing and comprises a discharging circuit for ...
10/27/1998
5731686Embedded battery overtemperature protection and voltage regulator circuitry
A method and apparatus is provided for miniaturizing battery overtemperature protection and voltage regulation circuits in which such protection and regulation circuits are formed in an integrated circuit (200, 600) and embedded in the casings of individu...
03/24/1998
5698966Temperature limiting device for terminating battery-charging with parallel discharging path for eliminating power-output interruptions
The present invention discloses a thermal protection device which includes a temperature limiting switch such as a thermostat to switch off a charging loop to a rechargeable battery to prevent overheating in the cells of the rechargeable battery. The ther...
12/16/1997
5689173Battery pack
The dangers of excessive battery current and battery heating are effectively prevented by maintaining a heat sensitive cut-off device in the cut-off state as long as an over-current situation exists. An inside case positioned in the enclosed space between...
11/18/1997
5602460Overcharge current protection circuit and battery pack using same
A battery pack (62) comprises cells (74), and is charged by a charger (64) providing a current level. The charger (64) is a typical nickel-cadmium battery charger providing a first charge current level in excess of an optimum charge current level. The bat...
02/11/1997
5289104Battery charging device
A battery charging device for charging a rechargeable battery unit includes a step-down unit which receives an external alternating current line voltage input and which reduces the line voltage input to an appropriate level. A rectifier unit receives the ...
02/22/1994
5254933Battery charging device
A battery charging device includes a step-down unit which receives an external alternating current line voltage input and which reduces the line voltage input to an appropriate level. A rectifier unit receives the reduced line voltage input from the step-...
10/19/1993
5252411Protective apparatus for secondary battery
Disclosed is a protective apparatus for a secondary battery comprising a temperature sensing switch turned on when the ambient temperature around the secondary battery exceeds a predetermined temperature setting, and a discharging circuit electrically con...
10/12/1993
5250892Battery charge with temperature-sensitive cut-off switch
A battery charger includes a battery compartment removable from the charger socket. The battery compartment includes a temperature-sensitive switch which opens when the temperature of the battery exceeds a predetermined value during charging, thereby cutt...
10/05/1993
5247238Battery charger automatic cut-off circuit
A battery charging circuit is provided with a thermally controlled cut-off switch whose normally closed contacts are in series with the main terminals of a thyristor. The thyristor is switched ON on commencement of battery charging by the charging of a ca...
09/21/1993
5245268Battery charger with current stabilizer
A battery charging device is used in charging a rechargeable battery load and is to be connected to an external dc power source. The battery charging device has a current stabilizer, which serially interconnects the power source and the battery load and w...
09/14/1993
5196780Ni-Cad battery charger circuit
An analog, low-cost nickel-cadmium battery charger including a fast charging current circuit and a slow charging current circuit, both of which are controlled by a comparator circuit which compares the characteristic negative change in battery voltage at ...
03/23/1993
4912391Flux-coupled iron directed battery charger
A flux-coupled, iron directed battery charger charges a battery while avoiding physical contact between the charger and the battery and uses a control circuit that substantially reduces the flow of charging current to the battery when said battery is full...
03/27/1990
4853607Non-isolated thermally responsive battery charger
A non-isolated battery charger for direct connection to an AC source provides rectified DC current to the battery being charged. A thermostat in a heat conducting relationship with the battery senses battery temperature and discontinues the charging curre...
08/01/1989
4853606Secondary battery quick charging circuit
A battery charging circuit includes a thermostat sensing the temperature of the battery as it is charged, a silicon controlled rectifier which when conductive enables charging of the battery and when non-conductive prevents charging of the battery, and a ...
08/01/1989
4712055Battery charger circuit
A latching arrangement is provided in a high speed battery charging circuit. The latching arrangement includes a momentary switch for momentarily changing a voltage level on a gate controlling capacitor for a gate controlled high current path and an inver...
12/08/1987
4686444Battery charging circuit
A battery charging circuit, which can charge storage batteries upto the required voltage level, and prevent them from being overcharged by use of a thyristor, a temperature sensor and a current regulation means. The circuit uses a regulated switched B
08/11/1987
4636704Battery charging circuit
A circuit for charging a battery having a charge-completion signal generator, e.g., a thermostat, that is turned off when the temperature of a rechargeable battery or cell has reached the level corresponding to charge completion. A constant-current circui...
01/13/1987
4623832Secondary battery quick-charging circuit
A battery charging circuit includes a thermostat for sensing the temperature of the battery as it is charged, a silicon controlled rectifier which when conductive enables charging of the battery and when non-conductive prevents charging of the battery, an...
11/18/1986
4544876Voltage regulator
A voltage regulator is disclosed for regulating the voltage supplied by an energy source such as a photovoltaic array. The regulator includes a thermally activated switch which is coupled in series between the regulator input and output. A control circuit...
10/01/1985
4528492Battery charger
A battery charger comprises a rectifier connected to a source of alternating voltage for generating a rectified sinusoidal halfwave voltage and a thyristor connected in a first circuit between the rectifier and a rechargeable battery for applying the sinu...
07/09/1985
4513238Automatic battery charger with thermal control
There is disclosed herein a battery charger, such as for use with compact low voltage batteries of the type used in consumer electronic products. The charger can sense both voltage and temperature to prevent either an over voltage condition or over temper...
04/23/1985
4346336Battery control system
The system comprises first and second input terminals each adapted for connection to a source of charging power, first means for feeding power from the first input terminal to a first terminal of the rechargeable power source, second means for feeding pow...
08/24/1982
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