Overload protection switch

Details Overload protection switch Overload protection switch

2006-01-31

2006-01-31

Vortman, Anatoly (Department: 2835)

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With bimetallic elements

C337S037000, C337S056000, C337S091000

Reexamination Certificate

active

06992559

ABSTRACT:
An overload protection switch has a conductor interconnecting the first primary leg and a second primary leg so that when current passes through the switch, the current not only raises the temperature of the bi-metal plate, but also raises the temperature of the conductor to enhance the deformation of the bi-metal plate such that the electrical appliance connected to the switch and having an ampere tolerance lower than that of the bi-metal plate is protected.

REFERENCES:
patent: 3534313 (1970-10-01), Holt
patent: 3562689 (1971-02-01), Bar
patent: 4528538 (1985-07-01), Andersen
patent: 5223813 (1993-06-01), Cambreleng et al.
patent: 5491460 (1996-02-01), Krasser et al.
patent: 5936505 (1999-08-01), Yu
patent: 6275134 (2001-08-01), Chen
patent: 6469610 (2002-10-01), Chen
patent: 2005/0134421 (2005-06-01), Huang
patent: 19746589 (1999-05-01), None

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