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Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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| Number | Title | Issue Date |
| 6966582 | Lock rod clutch for oven latch An oven door lock for self-cleaning ovens is described. The oven door lock includes a clutch mechanism which locks and unlocks the oven door at substantially different temperatures, in particular, the lock temperature is substantially higher than the unlock temperat... | 11/22/2005 |
| 6741158 | Magnetically sensed thermostat control Methods and apparatuses for magnetically detecting a temperature change for thermostat control thereof are disclosed. A thermostat control device can be configured to include at least one bi-metallic strip that is configured to experience a change in angular positio... | 05/25/2004 |
| 5917398 | Reed contact unit for an electric switch The invention relates to a reed contact unit (1) for electric switching functions, comprising a metallic contact blank (2) featuring a base (3) with at least one contact arm (5) configured integral with it, and comprising an electrically non-conducting fr... | 06/29/1999 |
| 5550525 | Switch with bimetallic element A single pole double throw thermostatic switch has a pair of fixed contacts on opposite sides of a movable contact. A U-shaped bimetal member having a pair of spaced end portions has one end portion attached to a switchcase and the other end portion carri... | 08/27/1996 |
| 4748432 | Device for the automatic control of room temperature in existing automobiles A device for the control of room temperature in existing automobiles is placed in series with the driving circuit of the blower motor of the automobile. The temperature control device includes a bimetal or spiral bimetallic strip capable of setting a work... | 05/31/1988 |
| 4039993 | Over temperature limit switch The disclosure relates to an over-temperature limit switch for automatically making or breaking an electrical circuit at a predetermined temperature. The actuating force for the switch is provided by a temperature dependent bimetallic spring and the latch... | 08/02/1977 |
