Did You Know...
...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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 |
| 6239686 | Temperature responsive switch with shape memory actuator A temperature actuated switch having a resilient switch blade that is movable between open and closed positions and extends perpendicular to an elongated actuator of shape memory alloy. The actuator has an elongated deformed shape at normal temperatures a... | 05/29/2001 |
| 5699033 | Insulating housing with an inner space for a thermal switch having contacts for electrical connection to a holder An insulating housing (41) with an inner space (42) to accommodate a switch (12) with temperature-dependent switching device which has to be mechanically and/or electrically protected is described. The switch (12) displays two electrically conductive term... | 12/16/1997 |
| 5420398 | Temperature detection device A device (1f), which is e.g. provided as an overheating protection means for detecting the temperature on a heating device (4f), apart from a temperature sensor (3f), also has an insulating connecting piece (20f) with all the connecting elements (23f) nec... | 05/30/1995 |
| 5321381 | Base for an electromechanical functional unit A base (1) provided with movable and mechanically loaded operational parts has a planar, plate-like base body (3), to which are fixed support bodies (5 to 9) located on an assembly side (4) with plate-like connecting parts (17, 18) exclusively by means of... | 06/14/1994 |
| 4901049 | Temperature limiter In a temperature limiter (1) with a rod-like temperature sensor (6), the outer tube is formed by a continuously tensile-stressed insulating tube (7) extending into a base (2). An inner rod (8), optionally articulated two or more times in the longitudinal ... | 02/13/1990 |
| 4724414 | Electrical switch device In an electrical switchgear having a common housing for a thermostatic expansion material element and at least two electrical snap switches that can be actuated by a working piston of the expansion material element, the snap switches are electrically sepa... | 02/09/1988 |
| 4697068 | Electric cooker heating unit A heating unit for cooking points, baking oven muffles or the like is provided on the inside of its outer body (2), in the central zone (10), with two thermal cutouts (17, 18), which are preferably located in a common cutout casing (19) exclusively locate... | 09/29/1987 |
| 4544831 | Hot warning device for cooking apparatus In a cooking and heating apparatus, a device for warning personnel of dangerously hot temperature is incorporated within the structure of a thermostat which has a switch for regulating the flow of electric current to a heating element of the apparatus. Th... | 10/01/1985 |
| 4374373 | Multiple contacts, snap-action, thermal switch A snap-action thermal switch adapted to be operated by an expansion element. The switch includes a switch reed pivotable between two switching positions, a switch spring exerting force components in a longitudinal direction and in a pivoting direction of ... | 02/15/1983 |
| 4328407 | Heating system and control An electric heating system employs a control unit including means to connect a resistance heater to a three pole power source and a switch to switch the connections between full voltage and low voltage as temperature is more than or less than several degr... | 05/04/1982 |
| 4114129 | Thermally responsive actuator There is disclosed a thermally responsive actuator useful for solenoids of electromagnetic valves and the like that includes a thermally responsive assembly of first and second metallic members that function as a thermocouple to generate an electrical vol... | 09/12/1978 |
