Electricity: circuit makers and breakers – Solid contact – Membrane type
Patent
1988-06-24
1989-07-25
Scott, J. R.
Electricity: circuit makers and breakers
Solid contact
Membrane type
H01H 110
Patent
active
048516260
ABSTRACT:
A rubber spring is disposed on a base on which are mounted fixed electrodes. The rubber spring includes first and second cup sections. The first cup section is in the form of an inverted cup, whose top portion is smaller in diameter than the bottom portion thereof, and is adapted to be bent by a force applied thereto from above and to produce a resilient restoring force corresponding to the size of such deflection. The second cup section, which is located inside the first cup section, has a U-shaped longitudinal section and is adapted to be bent by a force applied thereto from above and to produce a resilient restoring force corresponding to such deflection. Thin-walled portions are formed at the bent portions of the first and second cup sections. A center projection protrudes upward from the center of the second cup section. The top face of the center projection is situated below the upper surface of the support seat. An electric conductor member is disposed on the central part of the underside of the second cup section, so as to face the fixed electrodes.
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Scott J. R.
Topre Corporation
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