Did You Know...
...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6819216 | Thermostat A thermostat includes a wall plate unitarily molded of thermoplastic resin, a first metal plate holding a temperature sensing section, and a second metal plate holding a cam shaft. A fulcrum of a lever and a fulcrum of adjusting plate are protected by the wall plate... | 11/16/2004 |
| 5877670 | Heat motor operated load regulating switch assembly and knob attachment therefor A user adjustable switching controller for duty cycle regulating flow of current to an electrical load such as a resistance heater, particularly for cooking appliances. A load current switch, when closed by a user operated cam also energizes a heat motor ... | 03/02/1999 |
| 5392022 | Modular electric/gas oven thermostat 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... | 02/21/1995 |
| 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 |
| 5182539 | Temperature operated switch construction, terminal block therefor and methods of making the same A temperature operated switch construction, terminal block therefor and methods of making the same are provided, the switch construction comprising a housing, a movable switch arm carried in the housing, a temperature actuated unit disposed in the housing... | 01/26/1993 |
| 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 |
| 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 |
| 4926654 | Control assembly for adjusting thermostat setting A control assembly for a household refrigerator having a mullion partition separating the freezer compartment and the fresh food compartment with a front face and a bottom panel forming the top of the fresh food compartment. There is a control bracket mou... | 05/22/1990 |
| 4774489 | Temperature responsive electrical switch device A temperature responsive electrical switch device has means operable generally for switching between a pair of switching means, and temperature responsive means is operable generally at a set-point temperature for effecting the operation of the switching ... | 09/27/1988 |
| 4751491 | Electric/gas oven thermostat A thermostat for use with an oven of an electric or gas range includes a first electrical contact terminal, a second electrical contact terminal and an actuating assembly including an actuating spring arm for opening and closing an electrical path between... | 06/14/1988 |
| 4389629 | Electrical switch with a thermostatic working element as the actuating element, and a switch element in the form of a microswitch An electrical switch with a thermostatic working element as the actuating element and with a switch element designed as a microswitch. In order to achieve optimal utilization of space and small structural size, the contact support of the working contact o... | 06/21/1983 |
| 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 |
| 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 |
| 4075593 | Rotatable shaft positioning means 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 ... | 02/21/1978 |
