Jerk-initiated switch

Details Jerk-initiated switch Jerk-initiated switch

2007-06-12

2007-06-12

Hoang, Tu Ba (Department: 2832)

Electricity: circuit makers and breakers

Special application

Change of inclination or of rate of motion responsive

C200S061520

Reexamination Certificate

active

11181310

ABSTRACT:
A jerk-initiated switch includes a housing having an inner housing wall which defines an accommodation chamber therein. First and second terminals are disposed to define a switching action enabling path of a straight length that crosses the accommodation chamber. A ball member and a momentum reducing member are disposed in the accommodation chamber. When the housing is jerked, the ball member is displaceable from a first position, where the ball member is disposed to interrupt the switching action enabling path to establish a first electric switching state, to a second position, where the ball member is disposed outside the switching action enabling path to establish a second electric switching state. The momentum reducing member is configured to yield under impact from the ball member to reduce the momentum of the ball member when the ball member is displaced from the first position to the second position.

REFERENCES:
patent: 5955713 (1999-09-01), Titus et al.
patent: 6011254 (2000-01-01), Sano et al.
patent: 6115929 (2000-09-01), Tanazawa et al.
patent: 6140635 (2000-10-01), Kazumi et al.
patent: 6348665 (2002-02-01), Ohashi et al.
patent: 6518523 (2003-02-01), Chou
patent: 6559396 (2003-05-01), Chou
patent: 6690457 (2004-02-01), Yamaguchi
patent: 6740867 (2004-05-01), Chou
patent: 6800841 (2004-10-01), Chou
patent: 2003/0057361 (2003-03-01), Chou

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