Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 7230209 | Dual voltage infinite temperature control for an electric cooking appliance A cooking appliance includes a cooktop having a heating zone including an associated heating element, as well as a control element for setting a desired cooking temperature for the heating zone. When the control element is rotated from a home position across a tempe... | 06/12/2007 |
| 4797536 | Temperature control apparatus for a waterbed A system for controlling the temperature of a waterbed and preventing overheating of a waterbed heater. The system places temperature control sensing means and/or replaceable thermal fuse means in thermal contact with a waterbed heater mounted on thermall... | 01/10/1989 |
| 4723067 | Electric hotplate An electric hotplate (1) with a temperature sensor (21) of a power control device provided in the center of the cooking surface (3) has on the underside of area (5) of hotplate body (2) directly heated by heating resistors (7, 8) a thermal cutout (27) wit... | 02/02/1988 |
| 4410793 | Electric hotplate An electric hotplate (11) has a metal plate-like or inverted dish-shaped circular hotplate member (12) against whose bottom are pressed by spring elements (25) thin flexible tubular heaters (31), while interposing a multilayer insulation (28). A support d... | 10/18/1983 |
| 4330701 | Arrangement for mounting a sensing box in an opening in an electric hot plate A mounting arrangement is provided for mounting a sensing box in an opening in an electric hot plate on which a cooking vessel is to stand. The sensing box is connected via a capillary tube to a controller and is pressed toward the cooking vessel by the f... | 05/18/1982 |
| 4217481 | Cooking appliance with several electric cooking zones A surface-unit cooking appliance comprising a plurality of electric hot plates of the same type, each of the hot plates having a temperature regulator and each of the regulators having a temperature sensor for sensing the temperature of a cooking vessel o... | 08/12/1980 |
