Electricity: electrothermally or thermally actuated switches – Thermally actuated switches – With bimetallic element
Patent
1998-11-06
1999-08-17
Picard, Leo P.
Electricity: electrothermally or thermally actuated switches
Thermally actuated switches
With bimetallic element
337 89, 337349, 337298, 337327, H01H 3774, H01H 6100, H01H 3704
Patent
active
059399708
ABSTRACT:
A thermally responsive switch includes a metal housing formed into the shape of a bottomed cylinder and having an open end, a header plate including a metal plate having a through hole and an electrically conductive lead terminal pin inserted through and airtightly fixed in the hole in an electrically insulated state, the header plate being airtightly fixed to the open end of the housing so that the housing and the header plate constitute a hermetic housing, a thermally responsive element formed into the shape of a shallow dish and having a generally central through hole, a fixed contact section provided on a portion of the lead terminal pin located in the hermetic housing, a movable plate support secured to the metal plate of the header plate located in the hermetic housing, a movable plate formed of a leaf spring-shaped conductive metal plate and having one end secured to the movable plate support, and a movable contact fixed to the other end side of the movable plate.
REFERENCES:
patent: 4317097 (1982-02-01), Hofsass
patent: 4319214 (1982-03-01), Giver
patent: 4517541 (1985-05-01), Ubukata et al.
patent: 4894634 (1990-01-01), Nezuka et al.
patent: 4914414 (1990-04-01), Ubukata et al.
patent: 5337036 (1994-08-01), Kuczynski
patent: 5428336 (1995-06-01), Smith et al.
Koseki Hideki
Tsuji Takao
Picard Leo P.
Ubukata Industries Co., Ltd
Vortman Anatoly
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