Push button switch

Details Push button switch Push button switch

1995-01-20

1996-12-17

Walczak, David J.

Electricity: circuit makers and breakers

Solid contact

Push button operated

200523, H01H 342

Patent

active

055843840

ABSTRACT:
A push button switch including a moving member movably disposed inside a housing, a movable contact provided on the moving member, a fixed contact disposed inside the housing, a main spring for urging the moving member toward the fixed contact, and a push button disposed in an opening in the housing so as to engage the moving member. When the push button is pushed toward the fixed contact, the moving member is moved by the main spring by a preset distance toward the fixed contact so that the movable contact contacts the fixed contact. An auxiliary spring urges the push button in a direction away from the fixed contact by a force that is larger than a force of the main spring. The auxiliary spring has a larger diameter than the main spring, is substantially coaxial with the main spring, and can overlap the main spring.

REFERENCES:
patent: 4156802 (1979-05-01), Gilano et al.
patent: 4417115 (1983-11-01), Desmarais et al.
patent: 4559426 (1985-12-01), Van Zeeland et al.

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