Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 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 |
| 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 |
| 4698612 | Temperature limiting control A thermostatic switch assembly with a diaphragm responsive to pressure generated in a fluid filled temperature sensing bulb-and-capillary. The diaphragm contacts and moves a pivoted lever having a beam spring cantilevered beam spring adjustably mounted th... | 10/06/1987 |
| 4368449 | Contact mechanism for temperature switch using thermal expansion member A contact mechanism for a temperature switch using a thermally expandable member wherein a plate making a circular arc motion is provided at a tip of a piston which is moved by the thermal expansion member, and a coil spring is mounted between a middle of... | 01/11/1983 |
| 4079347 | Control device A control device adapted to select a set-point temperature for a condition responsive device. The control device has temperature selecting means rotatable through a preselected temperature range generally between a pair of opposite rotated positions, and ... | 03/14/1978 |
| 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 |
