Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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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 |
| 7330098 | Thermal fuse employing a thermosensitive pellet There is provided a thermal fuse employing a thermosensitive pellet that reacts to an operating temperature with limited variation, and operates with high precision and hence high reliability. To achieve this, the thermal fuse includes a switching function member in... | 02/12/2008 |
| 7236334 | Repeatable ESD protection utilizing a process for unshorting a first shorting material between electrical pads and reshorting by recreating the short A method for shorting, unshorting, and reshorting an electronic component such as an MR sensor provides a repeatable ESD protection scheme. A conductive line of an electrically conductive first shorting material is created between electrical leads operatively couple... | 06/26/2007 |
| 7209336 | Double-protection circuit protector A circuit protector is connected in a circuit to protect the circuit from overloading. The circuit protector includes a casing inside which first and second terminals electrically connected to the circuit are fixed. A first cantilever member is fixed to the first te... | 04/24/2007 |
| 7088216 | Protective device Protective devices for preventing overcurrent and overvoltage are disclosed. The devices includes a base substrate, a pair of electrodes formed on the base substrate, and a low-melting metal element connected between the pair of electrodes to interrupt the current f... | 08/08/2006 |
| 7071809 | Thermal fuse containing bimetallic sensing element A non-resetable, bimetallic thermal switch. The bimetallic thermal switch includes a bimetallic element, first and second electrical contacts, and a component for electrically connecting and disconnecting the first and second electrical contacts based on movement of... | 07/04/2006 |
| 7042327 | Alloy type thermal fuse and wire member for a thermal fuse element An alloy type thermal fuse is provided in which a ternary Sn—In—Bi alloy is used, the operating temperature belongs to the range of 130 to 170° C., the overload characteristic and the dielectric breakdown characteristic are excellent, the insulation stability a... | 05/09/2006 |
| 6963264 | Alloy type thermal fuse and wire member for a thermal fuse element The invention relates to an alloy type thermal fuse and a wire member for a thermal fuse element, and provides an alloy type thermal fuse in which a fuse element does not contain a harmful metal, the operating temperature is about 150° C., the dispersion of the ope... | 11/08/2005 |
| 6940052 | Fuse mechanism for a heating device and heating device A fuse mechanism for a heating device according to the invention functions as a thermal fuse. A heater is located on a support. In spatial proximity and with heat conduction to the heater are provided solder contacts with electrical leads to the support. A metallic ... | 09/06/2005 |
| 6741159 | Fail-safe assembly for coacting contacts in a current-carrying system, apparatus or component A fail-safe assembly for an electronic or electrical component, device, system or apparatus with coacting operatively associated contacts has an impact member, normally maintained in a stressed and disengaged portion, and a meltable or fusible member for holding and... | 05/25/2004 |
| 6222439 | Circuit breaking device A bus bar is connected between a battery post and a stud bolt to which an electric power supply wire is connected. An opening is provided in a housing in which an explosive sealing portion is accommodated. Just before the opening, a broken portion of the ... | 04/24/2001 |
| 6088234 | Connection structure of circuit protection element The connection structure of a circuit protection element for securely connecting at least two lead terminals of the circuit protection element to a circuit board includes terminal connection elongated holes each provided in the circuit board for connectin... | 07/11/2000 |
| 5831507 | Dual-functional fuse unit that is responsive to electric current and ambient temperature A dual-functional fuse unit, which is responsive to an electric current and an ambient temperature, contains a current sensing fuse and a temperature sensing fuse element. The current sensing fuse is serially connected with and between lead terminals of t... | 11/03/1998 |
| 5783987 | Pyrotechnic high-current safety fuse element A pyrotechnic high-current fuse element in which a current conductor located in a circuit to be protected is interrupted or displaced by ignition of a pyrotechnic charge when the current strength in the circuit exceeds a threshold value includes a separat... | 07/21/1998 |
| 5734312 | Overtemperature protection assembly for an appliance An overtemperature protection assembly with a mount, a solder terminal and a bridging connector. The mount is a block of ceramic material with a slot extending therethrough. The solder terminal has an end that is located in the slot and forms a frictional... | 03/31/1998 |
| 5708553 | Automatic switching-off structure for protecting electronic device from burning An electronic device integrally formed with an automatic switching-off structure for protecting the device from overheating. At least one conducting lead of the electronic device is mechanically and electrically connected to its corresponding electrode by... | 01/13/1998 |
| 5629569 | Thermal photocontrol switch circuit A self-configuring photoelectric control circuit for controlling operation of a load based on ambient light. The photocontrol circuit comprises a photocell responsive to ambient light, a heating resistor connected to the photocell, a bimetallic element in... | 05/13/1997 |
| 5592276 | Image fixing device with heater responsive to thermal stress A heater includes a base plate, and a resistor, extending in a longitudinal direction of the base plate, for generating heat when a power supply is applied thereto. A recess, such as a hole or groove, is formed in the base plate in a longitudinal portion ... | 01/07/1997 |
| 5097247 | Heat actuated fuse apparatus with solder link An apparatus for protecting circuitry includes a heat actuated fuse which opens at a predetermined temperature and a resistive device disposed proximate the fuse for heating the fuse in response to an electrical current passed through the device. The fuse... | 03/17/1992 |
| 5020128 | Tubular sheathed electric heater with an overheat safety device A tubular electric resistance heater includes a tubular sheath enclosing an electric heater coil. As protective overheat safety device is provided at an end of the sheath and includes an electrically conductive tube disposed in a cavity in the end of the ... | 05/28/1991 |
| 5014036 | Thermal and current sensing switch A thermal and current sensing switch which brakes an associated electric circuit when an overcurrent is supplied to the electric circuit or the temperature of the electric apparatus rises beyond a predetermined temperature. The thermal and current sensing... | 05/07/1991 |
| 5003283 | Thermal cutoff with lead indicia A thermal cutoff of the type including an electrically conductive housing and an electrical lead having dielectric material sealingly interposed therebetween. Indicia is located on the lead such that when the dielectric material extends to or beyond the i... | 03/26/1991 |
| 4942382 | Electrical switch mechanism having two release modes A normally closed electrical switch mechanism having fixed and movable switch assemblies, a spring assembly urging the movable switch assembly away from engagement with the fixed switch assembly to thereby open the switch, a latch member normally securing... | 07/17/1990 |
| 4929922 | Temperature safety device for electric devices A temperature safety device includes an electrically insulative support, electrical connectors extending outwardly of the support, first and second contact elements having first fixed ends connected with the electrical connectors and free ends engageable ... | 05/29/1990 |
| 4864102 | Miniature adjustable thermostat with integral over-temperature protection A thermally responsive control especially for a clothes iron combines an adjustable, temperature-regulating thermostat and an over-temperature control for limiting maximum temperature levels on a plastic mounting bracket where the over-temperature control... | 09/05/1989 |
| 4746892 | Thermally actuated latch for electrical circuits A thermally actuated latch for electrical circuits is permanently operative for completing an electrical circuit upon exposure to a predetermined elevated temperature. The latch includes a fixed contact, a movable contact arm which is biased toward the fi... | 05/24/1988 |
| 4727348 | Thermal fuse A thermal fuse has an insulative tubular case, two lead wires, a lead wire separating tool, an electrode plate consisting of two conductive metal plates deposited with fusible alloy which fuses at a preset temperature and an elastic body which presses the... | 02/23/1988 |
| 4536641 | Iron with overtemperature protection means A thermostatically controlled electric flatiron having a heater circuit of sufficient wattage to achieve abnormally high soleplate temperatures on continuous operation is provided with an overtemperature protection assembly for opening the heater circuit ... | 08/20/1985 |
| 4527144 | Thermal cut-off device A thermal cut-off device comprises a casing and a cover therefor both made of a highly heat conductive electrically insulating material such as ceramic. A pair of lead wires protrude from opposite ends of the casings with the other ends of the wires being... | 07/02/1985 |
| 4494104 | Thermal Fuse A fuse for responding to external temperatures to interrupt an electrical circuit, for example for interrupting a telephone battery feed in response to the temperature of a battery feed resistor, comprises a substrate carrying a pair of electrodes definin... | 01/15/1985 |
| 4489301 | High voltage, high current fuse with combustion assisted operation A high voltage fuse comprises one or more fusible strips or wires (fusible elements) electrically connected between nonfusible external electrical connection means with at least one portion of the fusible element ("a rapid melting portion") being designed... | 12/18/1984 |
| 4451814 | Non-resettable thermal fuse Two wire leads project from opposite ends of a dielectric housing having a sealed chamber containing a fusible metal alloy link, which operatively connects the wire leads electrically to one another. A flexible, pre-loaded, dielectric spring element in th... | 05/29/1984 |
| 4383236 | Heat limiters and method of manufacture A circuit interrupting device responsive to externally generated heat and method of manufacture of such device. The device includes a pair of spaced, coaxially aligned leads each entering a thermally conductive housing from an opposite end. The inserted e... | 05/10/1983 |
| 4380001 | Electric safety device The present invention discloses an electric safety device in which a fuse element adapted to break a circuit upon passage of an overcurrent and a circuit-breaking conductive member of the heat-sensitive type for preventing overheat are housed in one vesse... | 04/12/1983 |
| 4286248 | Thermal cut-off fuse A thermal cut-off fuse for breaking electric continuity between two lead wires, which utilizes melting and voluminal expansion of a temperature-sensitive member in a sealed state at a prescribed temperature.... | 08/25/1981 |
| 4259656 | Thermal cut-off device with an activating spring that is held in a prestressed condition by a thermally fusible pellet A thermal cut-off device is disclosed in which a first axial lead extends through an insulating member at one end of the device and a second axial lead contacts and extends through a conductive cylindrical housing at the other end of the device. A domed e... | 03/31/1981 |
| 4227169 | Combined thermal and electrical cut-off device The device described herein is useful in applications which formerly required both a thermal cut-off device and an electrical fuse. This device will open an electrical circuit in response to either an increase in ambient temperature or an increase in elec... | 10/07/1980 |
| 4198617 | Thermal cut-off fuse A thermal cut-off fuse of the class wherein the electric continuity between electrodes disposed inside a housing is maintained by conductor means at normal service temperatures and broken by the conductor means being fractured when the ambient temperature... | 04/15/1980 |
| 4145654 | Thermal switch A switch device utilizing independently acting biasing members to position a conductor to close a circuit between a pair of leads and maintain such closed circuit until a switch activating member such as a meltable pellet reaches a circuit opening state w... | 03/20/1979 |
| 4075595 | Temperature responsive electrical switch construction and method of making the same A collapsible pellet thermal limiter construction having an electrical switching unit that changes its condition when the pellet melts by being heated to a certain temperature for the particular pellet and having an epoxy material sealing one end of the c... | 02/21/1978 |
