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Magician Harry Houdini patented a "Diver's Suit" enabling the wearer to "quickly divest himself of the suit while being submerged and to safely escape and reach the surface of the water."
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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 |
| 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 |
| 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 |
| 4302662 | Control instrument for electric hot plates A control instrument is used for the manually continuously adjustable supply of electric power to electric hot plates in the form of individual power pulses. The control instrument contains a switch, operated by a bimetallic member, whose heater is contro... | 11/24/1981 |
| 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 |
