Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 7170388 | Thermostat A thermostat has a switch, a temperature sensor, a lever, a spring, and a control plate. The sensor generates a force to operate switch in response to the ambient temperature. The lever having an arm turns with the force from the sensor to open/close contacts of the... | 01/30/2007 |
| 6496097 | Dual circuit temperature controlled switch A temperature responsive switch includes a housing, an actuator arm for movement in response to temperature conditions, a movable contact, and an adjustable contact connected to a auxiliary terminal for completing an auxiliary circuit. The movable contact... | 12/17/2002 |
| 6307461 | Spring load reduction thermostat A temperature responsive switch includes a housing, electrical contacts, an actuator arm, a rotatable shaft, and a cam assembly to open and close an electrical power circuit in response to environmental conditions. The cam assembly includes a cam and a ca... | 10/23/2001 |
| 5617070 | Gas/electric oven thermostat with self cleaning temperature calibration mechanism A thermostat for an electric/gas oven includes a first electrical contact, a second electrical contact, a switch spring arm for moving the electrical contacts into and out of engagement and a pair of actuators for coupling forces to the switch spring arm.... | 04/01/1997 |
| 5467523 | Method for assembling and calibrating a condition-responsive electric switch mechanism A method for assembling a condition-responsive electric switch mechanism having a snap-acting bistable spring switch element. The switch mechanism is assembled substantially in its entirety except for the capillary tube. The switch mechanism is then calib... | 11/21/1995 |
| 5315281 | Thermostatically controlled switch A housing (10), (54) defines a well which holds a diaphragm assembly (12). The diaphragm assembly has a stud portion (14) that extends through an aperture in the housing and is biased into the housing by a spring (16). The stud portion defines a channel (... | 05/24/1994 |
| 5311165 | Modular electric/gas oven thermostat and assembly method An assembly method and a thermostat for an electric/gas oven are provided. An enclosure formed by a base and a cover for enclosing a switch subassembly includes axially aligned channels extending through opposed walls and external keying and positioning f... | 05/10/1994 |
| 5173679 | Thermostatically controlled switch A housing (10), (54) defines a well which holds a diaphragm assembly (12). The diaphragm assembly has a stud portion (14) that extends through an aperture in the housing and is biased into the housing by a spring (16). The stud portion defines a channel (... | 12/22/1992 |
| 5142261 | Constant-on, variable-stroke refrigeration thermostat A constant-on variable-stroke refrigeration thermostat is disclosed wherein the toggle spring-biased operating lever has a fixed-position stop when the contacts are open and a variable-position stop when the contacts are closed, and wherein an air gap is ... | 08/25/1992 |
| 5060486 | Thermostat control for providing multiple temperature ranges in a single refrigeration compartment A rotatable control for a broad range, temperature controlling thermostat for a refrigeration compartment of a refrigeration unit enables operation of the refrigeration unit in one of several different operational modes. For example, the refrigeration uni... | 10/29/1991 |
| 5032818 | Adjustable electric thermostat with temperature compensation An adjustable electric thermostat comprises a main housing in which an adjustment shaft is threadedly engaged so that the shaft end inside the housing is displaced when the shaft is turned, a heat transducer mounted on the shaft end, and a switch comprisi... | 07/16/1991 |
| 5029303 | Switching device In an electric switching device (1), particularly constructed as a temperature regulator, the resilient switching arm (14) controlled by a hydraulic expansion cell (12) for operating a snap switch (5) is fixed by means of positively engaging snap connecti... | 07/02/1991 |
| 5025242 | Oven thermostat An oven control for self-cleaning ovens provides a hydraulic sensing system having a wafer-like bellows. The position of the bellows is adjusted by a face cam on a control shaft in the BAKE and BROIL modes of operation. The bellows also controls the tempe... | 06/18/1991 |
| 4864270 | Thermostatic controller for waterbed heater A thermostatic controller for a waterbed heater of the type where the water bladder is enclosed in a foam casing with the controller disposed between the bladder and the side of the casing. The controller has a liquid filled bulb and capillary temperature... | 09/05/1989 |
| 4816797 | Control device, slide member therefor and methods of making the same A control device, a slide member therefor and methods of making the same are provided, the slide member being movable in a linear direction and having a cam for acting on a range spring of the control device, the frame of the control device having a subst... | 03/28/1989 |
| 4755786 | Thermostat A thermostatic switch having a snap acting switch mounted for actuation between the side walls of a U-shaped bracket. A remote bulb-and-capillary thermal sensing capsule provides output motion to a lever for switch actuation. The lever has an edge portion... | 07/05/1988 |
| 4710742 | Electric/gas oven thermostat A thermostat for use with an oven of an electric or gas range includes a first electrical contact, a second electrical contact and an actuating assembly including an actuating spring arm for opening and closing an electrical path between the first and sec... | 12/01/1987 |
| 4649362 | Thermostat A fluid bulb-sensing type thermostat having a capillary tube from the sensing bulb connected to an inlet port of a fluid pressure sensing chamber defined in part by an expansible diaphragm which moves in response to fluid pressure in the chamber from the ... | 03/10/1987 |
| 4639709 | Thermostat with adjustable temperature range setpoint stops A thermostat has a lever that adjusts the set point of the thermostat. The lever is limited in its movement by a pair of stops. The stops are inserted in a geometrically designed slot and can be readily moved for convenient adjustment.... | 01/27/1987 |
| 4626819 | Switch adjusting mechanism A switch adjusting mechanism is disclosed having a linearly operable actuator with a rotary adjustment for selectively varying the position of a switch operator of the actuator relative to a movable switch contact. The linearly operable actuator and its r... | 12/02/1986 |
| 4547760 | Thermostat for refrigerators with a constant switching-on and adjustable switching-off temperature A thermostat for refrigerators with a constant switching-on and adjustable switching-off temperature uses only one spring, the switching-on and switching-off temperatures being determined by the position of components of the omega switching system. The sw... | 10/15/1985 |
| 4423402 | Temperature sensitive capsules A capsule for use as a temperature responsive element in a temperature sensitive electrical switch. The capsule is provided in a transistor mounting can configuration to facilitate printed circuit board mounting. The capsule contains a fluid and a concave... | 12/27/1983 |
| 4376928 | Adjustable temperature sensor An adjustable temperature sensor control device wherein mercury in a well is displaced upwards in a capillary with one electrical contact within the well and another electrical contact positioned within the capillary. The displacement of the mercury is ac... | 03/15/1983 |
| 4245142 | Control unit and electrical switch construction therefor and methods of making such a control unit and electrical switch construction A control unit having a condition selector, an electrical switch having an actuator unit provided with an adjustable movement differential, a condition responsive device for actuating the switch when the condition responsive device senses certain conditio... | 01/13/1981 |
| 4214224 | Multi-function self-cleaning oven thermostat A multi-function, pyrolytic self-cleaning oven thermostat for regulating bake and clean temperatures and oven door unlatching. The thermostat includes separate bistable and creep-action switch mechanisms actuated by a single thermally expansive hydraulic ... | 07/22/1980 |
| 4166268 | Controller switch assembly A thermally actuated switch including a motive member which is adapted to move one contact either toward or away from its opposed mating contact in response to an increase or decrease in pressure in a fluid actuating heat sensing system, the fluid system ... | 08/28/1979 |
| 4115751 | Thermostat and method of operating such A thermostat for regulating temperature of a space. The thermostat has a pair of means selectively manually movable therein within a predetermined range of temperature settings for setting a selected temperature of the space. Means mounted in lost motion ... | 09/19/1978 |
| 4090165 | Thermostat range limiter A device is disclosed which is easily installed in a standard thermostat mechanism to limit the range of temperature to which the thermostat may be adjusted. The device is a generally flat template which is internally installed in the thermostat and physi... | 05/16/1978 |
| 4072933 | Fire heat detector and/or burglar alarm A detecting device for detecting heat due to the presence of fire for example. The detecting device includes an open-ended chamber closed by a resilient diaphragm. The diaphragm engages the open end to permit respectively the passage of air via an annular... | 02/07/1978 |
| 4050046 | Thermostatic switch An improved thermostatic switch which employs a pressure linear thermal power element and a simplified diaphragm motion translating and amplifying means while dispensing with need for diaphragm loading spring. It features a one piece motion transmitting l... | 09/20/1977 |
| 3999158 | Range limiter for a thermostat A thermostat having an ambient temperature responsive element, a switch mechanically coupled to the temperature responsive element for control thereby so as to cause reverse switch operations above and below a temperature setting, means for controlling th... | 12/21/1976 |
