Safety plug

Details Safety plug Safety plug

2011-04-19

2011-04-19

Abrams, Neil (Department: 2839)

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With bimetallic elements

C439S604000, C439S696000

Reexamination Certificate

active

07928825

ABSTRACT:
A safety plug, comprising: a housinga first metal bladea second metal bladea conducting devicea bimetallic stripan isolating-equipmentan elastomera cover and an isolator, wherein all of its apparatus are all well-located even after encountering overloading. Both the bimetallic strip and the conducting device are fixed together in the housing of the safety plug thus makes sure that their restoring back at the same exact location. It increases the safety and the practical utility of the safety plug in this way.

REFERENCES:
patent: 1857900 (1932-05-01), Walder
patent: 3386061 (1968-05-01), Delafrange
patent: 4100522 (1978-07-01), Waszmer
patent: 5001450 (1991-03-01), Wu
patent: 5157369 (1992-10-01), Yao
patent: 5248954 (1993-09-01), Chiang
patent: 7258580 (2007-08-01), Ho et al.
patent: 7666033 (2010-02-01), Fung

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