Interlock switch for appliances

Details Interlock switch for appliances Interlock switch for appliances

1996-06-21

1998-07-14

Tso, Edward

Electricity: circuit makers and breakers

Interlocking

Between switches and housing

200 5012, 200 503, 200 6162, H01H 922, H01H 500, H01H 920, H01H 316

Patent

active

057807922

ABSTRACT:
An electrical appliance includes an appliance base, a cover, power lines carrying electrical power to the appliance base, an interlock switch, and a fastener. The interlock switch has a switch case and a switch within the switch case. The switch case is affixed to the appliance base, the switch is in one of the power lines, and the switch has an open position and a closed position. The fastener is arranged to fasten the cover to the appliance base so that the fastener holds the switch in its closed position when the cover is fastened by the fastener to the appliance base and allows the switch to move to its open position when the cover is not fastened by the fastener to the appliance base.

REFERENCES:
patent: 3967088 (1976-06-01), Horiuchi
patent: 4054769 (1977-10-01), Anderson et al.
patent: 4117294 (1978-09-01), Appelquist et al.
patent: 4277659 (1981-07-01), Deremer
patent: 4516007 (1985-05-01), Ringdahl et al.
patent: 4529852 (1985-07-01), Lewandowski
patent: 4917414 (1990-04-01), Boulanger
patent: 5235150 (1993-08-01), Buske et al.
patent: 5624098 (1997-04-01), McDowell

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