Electricity: circuit makers and breakers – Solid contact – Rotating actuator
Patent
1997-01-29
1998-04-28
Walczak, David J.
Electricity: circuit makers and breakers
Solid contact
Rotating actuator
200570, H01H 1920
Patent
active
057433879
ABSTRACT:
An improved multistage switch with a small size, convenience in assembly and excellent sensitivity. The multistage switch includes a pedestal and a cover engaged with the pedestal. The pedestal defines a central recess therein and has a boss extending upwardly from a base defining the central recess. An input conductive strip, an output conductive strip and a central conductive strip are respectively disposed within the central recess of the pedestal. An input wire connected with the input conductive strip and an output wire connected with the output conductive strip are respectively received within a pair of channels defined in the pedestal. A diode is received within a cavity defined in the pedestal and connected between the input conductive strip and the central conductive strip. A star wheel combined with a conductive base is rotatably mounted on the boss. The star wheel has six ratchet teeth extending from an outer periphery thereof and the conductive base has four contact pieces abutting the six ratchet teeth and contacting with the input conductive strip, the output conductive strip and the central conductive strip. The cover has a knob mounted thereon. The knob has a driving piece mounted therein to drive the star wheel and a spring to control the driving piece.
REFERENCES:
patent: 3359393 (1967-12-01), Anthony
patent: 5586645 (1996-12-01), Bartok
patent: 5595290 (1997-01-01), Hsieh
Chiu Chin-huei
Walczak David J.
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