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| Number | Title | Issue Date |
| 7362208 | Thermal pellet type thermal fuse In order to prevent erroneous operation caused by shrinking of a thermal pellet due to sublimation or softening of the thermal pellet when current is applied, a thermal pellet type thermal fuse includes a metal casing, a first lead and a second lead leading out from... | 04/22/2008 |
| 7323965 | Thermal fuse using thermosensitive material In the present invention, a physical and chemical property of thermosensitive material is noted in selecting and using thermosensitive material to provide a noble and improved thermal fuse using thermosensitive material. To achieve this object, the present thermal f... | 01/29/2008 |
| 7323966 | Thermal pellet incorporated thermal fuse and method of producing thermal pellet A thermal fuse incorporating a thermal pellet has its operating temperature, or heat distortion temperature, adjusted and the thermosensitive material of the pellet avoids deformation, modification or similar deficiency if it is exposed to a severe external environm... | 01/29/2008 |
| 6483420 | Circuit breaker When an ignitor 29 is ignited by an abnormal signal sent from outside, a heating agent 27 charged into a thermite case 26 is heated, a retainer 45 is melted by the heat, a compression spring 39a is expanded to allow the thermite case 26 to move up. Theref... | 11/19/2002 |
| 6448884 | Circuit breaker A circuit breaker includes: a heating portion charged with heating agent and having a conductivity which is arranged between a first connecting terminal connected to a power source side and a second connecting terminal connected to a load side; an ignitio... | 09/10/2002 |
| 6411190 | Circuit breaker A current sensor 73 detects a current flowing through a first buss bar 11. When a current value detected by the current sensor 73 became equal to or greater than a threshold current value, a CPU 74 outputs a driving control signal to a driving circuit 77,... | 06/25/2002 |
| 6388554 | Circuit breaker device A circuit breaker device including a first connection terminal, a second connection terminal, a heating portion electrically interconnecting the first connection terminal and the second connection terminal, and a claw lockingly engaged with the heating po... | 05/14/2002 |
| 6194988 | Low melting point element fusion apparatus and circuit breaker including the same A fusion apparatus is equipped with a fuse, a solid combustion agent, an igniting device, and a spring. The solid combustion agent and the igniting device are accommodated within an inner casing. The inner casing is disposed in the vicinity of, or in cont... | 02/27/2001 |
| 6140905 | Electrically conductive contact pin having a temperature fuse function An electrically conductive contact pin having a temperature fuse function includes an electricity conducting element formed in an approximately cylindrical shape divided into an electrode contact portion and an outer electric contact portion, a holding bo... | 10/31/2000 |
| 5612663 | Dual-temperature fuse A thermal fuse which interrupts at least one current path which runs through it when a triggering temperature value is exceeded, with a fuse housing in which at least two thermal fuse elements are arranged and from which at least two connection contacts p... | 03/18/1997 |
| 5534842 | Circuit breaking switch with fusible element that responds to current overloads This invention provides a switch adapted to close upon pressing by an actuator of a movable piece initially in an open switch position, the actuator being made of a material which melts at a predetermined temperature. The switch opens when melting of the ... | 07/09/1996 |
| 5530417 | Thermal cutoff with floating contact member A thermal cutoff having a mushroom-shaped floating contact member with an enlarged head and an elongated shank. The outwardly facing end of the enlarged head has a centrally located depression for reducing the area of the head end surface that engages a s... | 06/25/1996 |
| 4825187 | Thermal cutoff A thermal cutoff including a dielectric bushing having opposite ends and a hole therethrough. A wire lead received through the hole has an enlarged contact thereon adjacent one bushing end, and an enlarged deformation thereon adjacent the other bushing en... | 04/25/1989 |
| 4808960 | Thermal cutoff heater A thermal cutoff having a metal foil resistance heater circuit bonded to its outer surface.... | 02/28/1989 |
| 4808965 | Thermal protector A thermal protector including a thermal cutoff and a device having a positive temperature coefficient of resistance, both mounted in a common housing and connected in series.... | 02/28/1989 |
| 4673909 | Thermal cutout The thermal cutout comprises a casing (1) in which at least a portion of casing (3) is of heat-conducting material, two terminals (5) carried by an electrically insulating plug (4) and an electrically conductive moving element (6) maintained in contact wi... | 06/16/1987 |
| 4533897 | Miniature thermal switch and method of making the same A miniature thermal switch features simplified single-spring construction requiring only four components within an enclosure housing. None of the components requires subassembly, and all are designed for completely automated assembly of the finished switc... | 08/06/1985 |
| 4480247 | Thermal cutout fuse A thermal cutout fuse comprises a housing, a first lead wire thrust into the housing, a movable contact connected to the first lead wire, a stationary contact disposed around the movable contact and electrically connected to a second lead wire, a coil spr... | 10/30/1984 |
| 4401965 | Thermal switch A single use thermal switch having a tubular casing within which a mechanical isolation cage is axially movable. The cage is normally urged by a helical compression spring against a fusible pellet which melts at a temperature at which it is desired to dis... | 08/30/1983 |
| 4384267 | Thermosensitive fuse A thermosensitive fuse includes a cylindrical metallic casing having one end closed and the other end opened. The closed end of the casing is connected with a first conductor that extends outwardly from the casing and the opened end is fittingly mounted w... | 05/17/1983 |
| 4314224 | Thermally actuatable electrical switch construction and method of making the same A thermally actuatable electrical switch construction having a resilient contact member normally biased into electrical contact with a stationary contact member while a temperature sensitive member of the construction is in a solid condition and normally ... | 02/02/1982 |
| 4309685 | Thermally actuatable electrical switch construction and method of making the same A thermally actuatable electrical switch construction having a resilient contact member normally biased into electrical contact with a stationary contact member while a temperature sensitive member of the construction is in a solid condition and normally ... | 01/05/1982 |
| 4292617 | Thermal switch with electrically conductive thermal sensing pellet A thermal switch is described which has a pair of axial leads, one of which is electrically insulated from the conductive outer housing and the other of which is in contact with the housing. An electrically-conductive temperature-sensing pellet which is m... | 09/29/1981 |
| 4276531 | Nonresetable thermally actuated switch A thermal limiter construction having a generally cylindrical housing or casing provided with an oppositely extending pair of conductor leads, one of which is insulated from the casing and the other is conductive with the casing. In the closed position, a... | 06/30/1981 |
| 4276532 | Thermal fuse This disclosure relates to a heat fuse for use in electrical and electronic equipment in which a contact plate having a diameter smaller than the internal diameter of a metallic casing is adapted to positively contact under pressure the inner peripheral s... | 06/30/1981 |
| 4268813 | Resettable thermal cut-off switch A pair of conductors in an electric switch are kept in electrical contact by a wire gripped between the conductors and a base against which the conductors are biased. A pedestal of meltable material in a well, covered by a resilient sheet, supports the ba... | 05/19/1981 |
| 4246564 | Method of assembling a normally closed thermally actuated cut-off link and the link made thereby A method of assembling a normally-closed ambient thermally actuated switch comprises assembling into the open end of a casing a sandwich of elements including a meltable pellet, one or more springs, a backing member and a contact arm-deforming member whic... | 01/20/1981 |
| 4210893 | Thermal cut-off fuse A thermal cut-off fuse comprises a housing, a pair of terminals opposed to each other within the housing, a sliding means constantly urged by a spring, a thermal pellet adapted to melt at a fixed elevated temperature and remain in a solid state at normal ... | 07/01/1980 |
| 4197520 | Thermal switch device with spring cup contact A thermal switch device is constructed with an electrical conductive spring cup contact that fits over a ceramic insulator which surrounds one lead of the device. The center of the spring cup contact has a pattern cut in it so that it is flexible, and a m... | 04/08/1980 |
| 4189698 | Resettable thermal cut-off fuse A resettable thermal cut-off fuse, under normal temperature condition, keeps the circuit in a closed state by allowing a switch member which is energized by a spring in the circuit-breaking direction to be joined through the medium of a thermal pellet cap... | 02/19/1980 |
| 4189697 | Thermal cut-off fuse In a thermal cut-off fuse of the class wherein electrical continuity of a contact means is maintained through the medium of a thermal pellet which is solid in its normal state and melts into a liquid state when the ambient temperature rises to reach a fix... | 02/19/1980 |
| 4186366 | Radial lead thermal cut-off device A radial lead thermal cut-off device for opening an electrical circuit when a predetermined temperature is disclosed. Electrical connection between the radial leads is maintained by thin spring contact which is forced against the terminal heads of the lea... | 01/29/1980 |
| 4184139 | Thermal cut-off fuse In a thermal cut-off fuse of the type in which a resilient contactor interposed between the electrodes opposed to each other inside a housing is bulged with the pressure resulting from insertion of a thermal pellet inside the housing so as to establish an... | 01/15/1980 |
| 4179679 | Thermal switch A thermal switch in which a contact spring is formed from a flat strip of metal into a U-shape with inward extensions from the ends of the legs of the U, the outside faces of each of the legs of the U normally resiliently contacting one of a pair of paral... | 12/18/1979 |
| 4167724 | Thermal switches A thermal switch comprising a conductive casing defining a switch axis, a terminal connected to the casing and a terminal entering the casing in insulated relationship thereto, and within the casing a normally solid fusible pellet and a resilient contact ... | 09/11/1979 |
| 4135177 | Thermal protective switch A thermally sensitive switch is provided with two parallel lead wires or conductive members which are confined within a two section insulated housing. Electrical continuity between members is established by a conductive contact element which bridges the t... | 01/16/1979 |
| 4127839 | Thermal switch Conductive caps are respectively put on both ends of an insulating cylindrical member and a pair of cup-shaped contactors are disposed in the insulating cylindrical member in a manner to be movable relative to each other. A repulsive force is provided by ... | 11/28/1978 |
| 4126839 | Surface acoustic wave apparatus A surface acoustic wave apparatus is disclosed in which a conductive earth pattern is formed on almost all the upper surface of a header, a surface acoustic wave element is provided on the header through the conductive earth pattern, and the conductive ea... | 11/21/1978 |
| 4126845 | Temperature responsive current interrupter A temperature responsive current interrupter in which two conductors are connected by electrically conductive, low-melting-point fusible elements respectively mounted on the conductors and a connector element interconnecting the fusible elements and urged... | 11/21/1978 |
| 4109229 | Thermally actuatable electrical switch subassembly thereof A thermally actuatable electrical switch construction having a deformable contact member normally disposed in electrical contact with a stationary contact member while a temperature sensitive member of the construction is in a solid condition and being de... | 08/22/1978 |
