| US 7,536,880 B2 | ||
| Magnetic lid switch | ||
| Errin Whitney Gnadinger, Louisville, Ky. (US); Kristian Michael Magnuson, Louisville, Ky. (US); Thomas William McConihay, Louisville, Ky. (US); John Jacob Lapina, Jr., Louisville, Ky. (US); and Derek Lee Watkins, Elizabethtown, Ky. (US) | ||
| Assigned to General Electric Company, Schenectady, N.Y. (US) | ||
| Filed on May 18, 2004, as Appl. No. 10/847,940. | ||
| Prior Publication US 2005/0257578 A1, Nov. 24, 2005 | ||
| Int. Cl. D06F 33/02 (2006.01) | ||
| U.S. Cl. 68—12.02 [68/12.26; 68/196; 134/57 DL; 134/58 DL; 70/271; 70/276; 70/278.1; 292/341.14; 200/17 R; 200/43.07; 200/61.62; 200/61.7; 200/67.71; 200/61.73; 200/181; 200/329; 200/406; 335/205; 335/206; 335/207] | 26 Claims |
| 1. A magnetic lid switch assembly comprising:
a first magnetically actuated electrical switch, said first switch having a first magnet and a lever arm movable between a
first position wherein said first switch is open and a second position wherein said first switch is closed;
a second magnetically actuated electrical switch electrically connected in series with said first switch, said second switch
having a second magnet oriented opposite in polarity with respect to said first magnet and a lever arm movable between a first
position wherein said second switch is open and a second position wherein said second switch is closed;
a first actuator magnetically coupled to said first switch, said first actuator comprising a first actuator magnet oriented
opposite in polarity with respect to said first magnet and arranged such that said first actuator magnet does not attract
said second magnet, said first actuator moving said lever arm of said first switch closing said first switch to enable said
first switch to pass an electric current when said first actuator magnetically actuates said first switch; and
a second actuator magnetically coupled to said second switch, said second actuator comprising a second actuator magnet oriented
opposite in polarity with respect to said second magnet and arranged such that said second actuator magnet does mot attract
said first magnet, said second actuator moving said lever arm of said second switch closing said second switch to enable said
second switch to pass an electric current when said second actuator magnetically actuates said second switch.
|