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"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 7479868 | Trip-free manual reset thermostat A trip-free manual reset thermostat includes a first fixed contact and a second fixed contact for an electric circuit and a bridging contact having a first end and a second end in contact with the first and second fixed contacts, respectively, in a normally closed p... | 01/20/2009 |
| 7218200 | Manual-reset thermostat A movable operating member 5 is swingably borne by the base 1, and its distal end is moved upward by allowing its proximal end 5b to be pressed downward. The movable contact 3 is separated from the stationary contact 2 upwar... | 05/15/2007 |
| 7138594 | Push switch A push switch includes an insulative housing (1), a pair of fixed terminals (2), a moveable contact (3) and an actuator(4). The insulative housing (1) made of insulative material has a base (10), a plurality of periphery wal... | 11/21/2006 |
| 7005597 | Switch device A switch device capable of increasing the operation speed at the time of reversion of contacts, thereby suppressing generation of arcs, and capable of increasing the contact pressure between the contacts, thereby reducing the bouncing of the contacts. A first rotor ... | 02/28/2006 |
| 6940374 | Overload/open-phase tripping device for circuit breaker An overload/open-phase tripping device for a circuit breaker includes a plurality of bimetallic elements arranged in a row; a differential shifter mechanism; and a tripping lever for transmitting a force applied by the differential shifter mechanism to a switching m... | 09/06/2005 |
| 6910342 | High temperature limit thermostat with manual lockout safety A manual reset high temperature limit thermostat is provided. The manual reset lockout feature is provided by a lock rod that is outwardly transitioned upon actuation of the thermostat when the sensed temperature reaches its high level limit. A manual reset reset sl... | 06/28/2005 |
| 6710695 | Aircraft circuit breaker with manual opening resistant feature A pushbutton resettable circuit breaker is shown having features to prevent manual opening by simply pulling outwardly on the pushbutton. In one embodiment, the pushbutton (16) is formed with slots (16b) which are configured to provide a reactio... | 03/23/2004 |
| 6707368 | Manually trippable circuit breaker A circuit breaker includes a nonconductive housing, a first breaker contact within said housing, and a trigger element having a second breaker contact located within said housing. The trigger element is thermally activated to separate the first and second breaker co... | 03/16/2004 |
| 6703917 | Resettable fuse/circuit interrupter with visual fault indication A circuit interrupter device protects a load circuit from excessive, or overloading levels of current, provides a visual indication of circuit overload and open circuit, and can be reset. A multi-metallic heat reactive strip is snapped by an overload curr... | 03/09/2004 |
| 5929742 | Trip-free, manual reset thermostat A thermostat includes a housing having a cavity formed therein, a temperature responsive bimetallic disc located in the housing, a stationary contact member which is electrically interconnected to a first terminal external to the housing, and a movable co... | 07/27/1999 |
| 5861794 | Thermal circuit breaker apparatus An open ended cup shaped housing (12) has first and second spaced electric terminals (14,16) extending through the bottom wall of the housing into a switch chamber with a snap acting, current carrying disc (18) cantilever mounted on one terminal and havin... | 01/19/1999 |
| 5854585 | Manual reset electrical equipment protector apparatus A manual reset electrical protector (10, 10') has a reset assembly (26, 26') having a guideway (28a, 28a') and track (28c, 28c') in which a slide member (30, 34, 34') is movable between a protracted position interrupting the movement of a movable electric... | 12/29/1998 |
| 5821801 | Electrical thermostat A thermostat uses a bimetal plate carried by a rotating knob. Adjustment of the knob to select the thermostat's temperature setting displaces the entire bimetal plate towards or away from the electrical switch being activated. The bimetal plate is contain... | 10/13/1998 |
| 5790009 | Thermostat reset with additional electrical switch An electric coffee maker having a hot water heater, a resettable thermostat, a mechanism for resetting the thermostat, and an electrical switch connected in series with the thermostat. The resetting mechanism has a user actuated button movably mounted to ... | 08/04/1998 |
| 5783986 | Plug with security device having bimetal and restoring button A plug with security device, including a housing, several conductive insertion plates adapted to be inserted into a power socket, conductive wires connected to an electric appliance and a security device. The insertion plates are connected with the conduc... | 07/21/1998 |
| 5767762 | Overcurrent relay having a bimetal a resetting member and an accelerating mechanism An accelerating mechanism in an overcurrent relay for accelerating the speed of moving operation of a resetting bar or the speed of motion in a normally closed contact caused by the resetting bar. In the application of the relay to any resetting mechanism... | 06/16/1998 |
| 5703560 | Thermostat with one-piece reset mechanism and contact assembly A thermostatic switch has a housing and a temperature responsive bimetallic disc located in the housing and responsive to a predetermined temperature for exerting a flexing action. A fixed contact member is located in the cavity along with a movable conta... | 12/30/1997 |
| 5699034 | Thermostat controlled probe-type plug having a stopping member to prevent switch closing under low temperatures A thermostat controlled probe-type plug includes a heat detecting probe made from dual-metal. This heat detecting probe has a hollow tube and a metal rod is disposed therein. A swing arm is disposed at the open end of the hollow tube. The outer end of the... | 12/16/1997 |
| 5270799 | Manual reset thermostat switch Upper and lower flexible blades carry normally closed contacts that are opened by upward movement of the upper blade responsive to snapping of a bimetal disc. The disc is reset by a pushbutton movable from a rest position to a depressed reset position. In... | 12/14/1993 |
| 5157370 | Trip free thermostat A manually resettable trip free thermostat that has simple construction and a pivotable stationary contact arm that enables the thermostat to be reset while maintaining the contacts in an open condition.... | 10/20/1992 |
| 5003282 | Trip free/reset free manual reset A thermostat having an electrically insulating housing and a push button extending therein through a bottom wall thereof. Two normally closed contacts, one fixed and the other on a movable carrier with a projection are disposed within the housing. A sprin... | 03/26/1991 |
| 4758876 | Thermal protective device with bimetal for semiconductor devices and the like A thermal protective device for semiconductor devices and the like comprises a housing of electrically insulative plastic material made in cup form having at the open end a seat for lodging a bimetallic disc and means for applying the cup to the semicondu... | 07/19/1988 |
| 4710610 | Electric resistance heater and limit switch assembly A heater and limit switch assembly, particularly useful for installation in the conditioned air duct of a rooftop air conditioner. The loop of a rigid-loop heater, mounted on a vertical plate by two parallel legs, is modified to provide an inward offset p... | 12/01/1987 |
| 4703301 | Thermally-controlled electrical switching element, particularly temperature regulator or temperature limiter A thermically controlled electrical switching element which is in the form of a temperature regulator or a temperature limiter. On a socket are arranged, in parallel orientation, a bimetallic spring plate, and a steel plate deflectable to both sides. The ... | 10/27/1987 |
| 4646054 | Thermal switch A thermal switch for breaking an electrical circuit to prevent overheating s described. The thermal switch includes a bimetallic thermocouple in the form of a snap disc and a leaf spring. The leaf spring supports an electrical contact. When the leaf spring... | 02/24/1987 |
| 4554525 | Thermal switch A thermal switch having a temperature sensor formed of a thermal bimetallic nap disk, the temperature sensor cooperating via a transmission member with a contact system which has a contact carrier bearing at least one movable contact, the movable contact r... | 11/19/1985 |
| 4539468 | Water boiling vessel immersion heater with primary and secondary thermal cut-out protection An electric immersion heating element dry switch-on or boil dry protector unit for an electrically heated water boiling vessel comprises primary and secondary bimetals (31,32) responsive to the heating element head temperature and each arranged for actuat... | 09/03/1985 |
| 4513570 | Manual reset type bimetal thermostat Disclosed is a manual reset type bimetal thermostat where a reversible plate is affixed to a disc type bimetal which can reverse in response to temperature change, characterized in that at least either of the reversible plate and the bimetal is provided w... | 04/30/1985 |
| 4488138 | Three-stage temperature switch, preferably for a hot water heater A three-stage temperature switch, preferably for hot water heaters, having regulator contacts in the 1- and 2-branches of the switch, wherein the operating thermostat and the safety thermostat are connected to the casing of the three-stage switch for, res... | 12/11/1984 |
| 4486735 | Latch for a snap-action switch An electrical switch comprises a snap-acting actuator blade movable with a snap action between two configurations to control the making and breaking of electrical contacts and a latching mechanism which, when the actuator blade has snap-acted in one sense... | 12/04/1984 |
| 4480246 | Trip-free manual reset thermostat A trip-free manual reset thermostat is disclosed in which a bimetal snap disc is positioned so that one edge portion engages a movable contact support arm and opens the contacts when the disc operates to its operative condition. A manual reset member is o... | 10/30/1984 |
| 4470033 | Thermal switch Known thermal switches designed for safeguarding apparatus against overheating have been produced with one driving bimetal snap action disk and a spring snap action disk responsible for the contacting force on the turned-on position of the switch. For ope... | 09/04/1984 |
| 4403206 | Balanced switch for thermostats or the like A condition-sensing switching device is disclosed having a plurality of active switch elements which are not symmetrical with the line of action of the condition-sensing actuator. A dummy element is provided to establish symmetry and produce a balanced co... | 09/06/1983 |
| 4368451 | Thermostatic switch A thermally actuated switch located within a housing is disclosed, the switch having a bi-metallic element coupled thereto for the opening or closing of an electrical circuit. The switch is particularly characterized by a one-piece housing having a recess... | 01/11/1983 |
| 4288686 | Thermostat for popcorn cooking containers or the like A thermostat is disclosed which includes a bimetal element in the form of an elongated strip and a trip mechanism formed by an elongated metal strip and a member having a U-shaped portion operative as a spring and an arm portion projecting from one leg of... | 09/08/1981 |
| 4230931 | Electric cigar lighter An electric cigar lighter for automobiles and the like, comprising a holder device presenting an outwardly facing socket, and an ignitor plug receivable in the socket. The plug comprises a manually operable part, and carries a heating element which is ele... | 10/28/1980 |
| 4207455 | Automatic electric cigar lighter with base switch An automatic electric cigar lighter for automobiles and the like having a socket and an ignitor plug receivable in the socket. The plug comprises a manually operable part carrying an electric heating element which can be electrically connected to the sock... | 06/10/1980 |
| 4204108 | Manual electric cigar lighter A manual electric cigar lighter for automobiles and the like, comprising a holder device presenting an outwardly facing socket, and a unique ignitor plug receivable in the socket. Disposed at the inner end of the plug is a heating element which is electri... | 05/20/1980 |
| 4177374 | Automatic electric cigar lighter An automatic electric cigar lighter, and especially a cigar lighter igniting unit as used for automobiles and the like. The cigar lighter has a holder which presents an outwardly facing socket, and embraces a unique ignitor plug that is received and store... | 12/04/1979 |
| 4118683 | Resettable thermal safety switch A resettable thermal safety switch having a bistable domed bimetallic disc serving as a heat-responsive switching element which pops from its normal curvature to an opposite curvature, thereby moving a contact breaking plate, the switch having a reset but... | 10/03/1978 |
