Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 6448883 | Switch having an end of service position in its open state A switch has a temperature-dependent switching mechanism with a stationary contact element; a movable contact element coacting with the stationary contact element; and a bimetallic element, having a predetermined functional service life, that as a functio... | 09/10/2002 |
| 6281780 | Electrical apparatus having improved electrical contact and electrical contact used therewith An electric apparatus (10) according to the present invention comprises electrically separated first and second terminals (14, 13), a first contact (16) that is connected electrically to the first terminal (14) within a casing (11), a second contact (15) ... | 08/28/2001 |
| 5864278 | Switch having a temperature-dependent switching mechanism A switch comprises a housing which receives a temperature-dependent switching mechanism and has a lower part on whose inner base a first countercontact for the switching mechanism is arranged. Also provided is a cover part, closing off the lower part, on ... | 01/26/1999 |
| 5262752 | Electrical switch having a two stage snap action interface for enhanced operation An electrical switch assembly includes a snap action switch which is actuated from one to another conduction state by a snap action interface mechanism moved by an external actuation element between first and second corresponding positions. The snap actio... | 11/16/1993 |
| 5206622 | Protector device with improved bimetal contact assembly and method of making The present invention provides an improved thermostatic contact assembly for use in a protector and method of making wherein weld projections are formed on the thin snap-acting bimetal disc for attaching the movable contact member to provide better alignm... | 04/27/1993 |
| 5194842 | Thermostat device A thermostat device having a temperature responsive bimetal which permits movement of a permanent magnet between two fixed points to activate a reed switch element. The device includes a magnetic shunt for effecting a positive off position.... | 03/16/1993 |
| 5077535 | Thermostatic switch with sinuous bimetal blade A thermostatic switch has a bimetallic member formed with an undulated section for causing both an axial and a radial displacement of the bimetallic member such that each time the member expands a first contact wipes across a second contact. By providing ... | 12/31/1991 |
| 4998085 | Front surface grid for thermostat subbase A thermostat subbase has a conductive grid located on a first surface of an insulating base. Terminals for connection to the controlled heating and cooling apparatus and terminals for connection to a thermostat are integrally formed from the conductive gr... | 03/05/1991 |
| 4919196 | Three-stage mercury switch for operation between the heating and cooling mode There is disclosed a thermostat controlled apparatus which controls the operation of a heating system and a cooling system in response to temperature variations in a given environment. The thermostat has a three-electrode mercury switch which is coupled t... | 04/24/1990 |
| 4843364 | Thermostatic electric switch An electric switch, particularly a thermostatic switch, includes contacts connected to at least three terminal members having connector terminals aligned along a common axis.... | 06/27/1989 |
| 4775099 | Thermostatic control apparatus for operation between the heating and cooling mode There is disclosed a thermostat controlled apparatus which operates to control operation of a heating system and a cooling system in response to the temperature detected in a given environment. The thermostat has a pair of mercury switches which are coupl... | 10/04/1988 |
| 4748432 | Device for the automatic control of room temperature in existing automobiles A device for the control of room temperature in existing automobiles is placed in series with the driving circuit of the blower motor of the automobile. The temperature control device includes a bimetal or spiral bimetallic strip capable of setting a work... | 05/31/1988 |
| 4635024 | Welding method and thermostat produced A method of welding electrical contacts onto conductive bodies including engaging a surface of the contact with the conductive body and passing a welding current through a pair of spaced surface areas of the contact to provide weld action and wherein a ri... | 01/06/1987 |
| 4536727 | Multiple pole mercury switch particularly adapted for thermostat applications There is disclosed a mercury switch for use in thermostat applications. The switch has a hollow housing fabricated from glass and is positioned in the horizontal plane when in an operating orientation. The switch has a first common electrode within said h... | 08/20/1985 |
| 4515306 | Four-terminal zone thermostat A manually and automatically operable four-terminal zone thermostat for use with automatic damper means when thermostatic means are required to operate fuel control means of a heating/cooling device and motor means rotating said damper means. The thermost... | 05/07/1985 |
