Electricity: circuit makers and breakers – Solid contact – Rotating actuator
Reexamination Certificate
2007-10-31
2009-12-08
Friedhofer, Michael A (Department: 2833)
Electricity: circuit makers and breakers
Solid contact
Rotating actuator
C200S568000, C200S0060BB, C200S0110TC
Reexamination Certificate
active
07629549
ABSTRACT:
A rotary switch includes a holder base holding two metal contact plates and one metal connection plate, a rotary handle vertically pivotally coupled to a pivot shaft of the holder base and rotatable relative to the holder base between a first position where a bottom recess of a circular actuating member of the rotary handle receives a respective electric connection portion of each metal contact plate and the electric connection portion of the metal connection plate contacts the electric connection portions of the metal contact plates and a second position where a protrusion of the circular actuating member forces the electric connection portion of one metal contact plate away from the metal connection plate to produce an electrical signal, and a torsion spring sleeved on the rotary handle with its two ends respective connected to the actuating member and the holder base for returning the rotary handle automatically after each rotary motion.
REFERENCES:
patent: 3497643 (1970-02-01), Willans
patent: 3912886 (1975-10-01), Allen et al.
patent: 4272658 (1981-06-01), Crosby
patent: 5589671 (1996-12-01), Hackbarth et al.
patent: 5594220 (1997-01-01), Hackbarth et al.
patent: 6825449 (2004-11-01), Kirby
patent: 7030325 (2006-04-01), Blossfeld et al.
Chen Chien-Hung
Cheng Chia-Yi
Huang Chen-Hong
Friedhofer Michael A
Guice Patents PLLC
Solteam Electronics Co., Ltd
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