Switching apparatus for an electrical appliance

Electricity: circuit makers and breakers – Solid contact – Push button operated

Patent

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Details

200523, 200576, 2003201, 2003022, 200 60, 362205, H01H 1314

Patent

active

054262739

ABSTRACT:
A switching apparatus has a cylindrically shaped hollow insulated body with first and second parts that sealingly engage each other at longitudinal abutting surfaces. The first part has a longitudinal recess. The body is formed with a radial button retaining passage. A conducting unit is disposed in the recess and includes elongated first and second conducting elements with a respective first end portion contacting a corresponding one of two input terminals of a driven element, and a respective second end portion. The second end portion of the first conducting element contacts one of two output terminals of a power source. A third conducting element has a first end portion extending out of the body and contacting the other output terminal of the power source, and a second end portion spaced apart from the second end portion of the second conducting element. A button unit is movably disposed in the button retaining passage. A conducting contact member is mounted on the button unit and is pushed by a compression spring to contact the second end portions of the second and third conducting elements so as to activate the driven element. A retaining unit is employed to break selectively electrical contact among the second and the third conducting elements and the contact member against action of the compression spring.

REFERENCES:
patent: 3924116 (1975-12-01), Brindley
patent: 3924117 (1975-12-01), Brindley
patent: 4286311 (1981-08-01), Maglica
patent: 4843526 (1989-06-01), Price, III
patent: 4940860 (1990-07-01), Shiau
patent: 4951183 (1990-08-01), Wang
patent: 5226722 (1993-07-01), Maglica
patent: 5282116 (1994-01-01), Shiau
patent: 5345370 (1995-09-01), Murray et al.

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