Rolling-ball switch

Details Rolling-ball switch Rolling-ball switch

2007-08-14

2007-08-14

Friedhofer, Michael A (Department: 2832)

Electricity: circuit makers and breakers

Special application

Change of inclination or of rate of motion responsive

C200S061520

Reexamination Certificate

active

11535865

ABSTRACT:
A rolling-ball switch includes a housing, at least two terminal rods, and a conductive ball. The housing defines a chamber, and has a bottom wall provided with at least two through holes. Each through hole is defined by a multi-sided hole wall. Each terminal rod has an inner end extending into the chamber through the respective through hole, an outer end that extends outwardly of the bottom wall and that is adapted to be inserted into a circuit board, a multi-sided lateral surface extending between the inner and outer ends, and at least one engaging member provided on the multi-sided lateral surface and engaging the hole wall of the respective through hole. The conductive ball is disposed movably in the chamber to contact separably the inner ends of the terminal rods.

REFERENCES:
patent: 4778964 (1988-10-01), Kamisada
patent: 5208430 (1993-05-01), Ludzia
patent: 5213314 (1993-05-01), Kano et al.
patent: 5920045 (1999-07-01), Suzuki et al.
patent: 5977497 (1999-11-01), Tsunematsu
patent: 6028275 (2000-02-01), Jou
patent: 6096990 (2000-08-01), Marin
patent: 6448516 (2002-09-01), Chiang
patent: 7045724 (2006-05-01), Chou

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