Negative rate snap-acting switch apparatus and method

Details Negative rate snap-acting switch apparatus and method Negative rate snap-acting switch apparatus and method

2005-01-25

2005-01-25

Enad, Elvin (Department: 2832)

Electricity: circuit makers and breakers

Snap

C200S409000

Reexamination Certificate

active

06847000

ABSTRACT:
A negative rate snap-acting switch apparatus and method is disclosed, which generally includes a plunger associated with an actuating lever, a stationary anchor, a moveable contact, and at least two stationary contacts. The negative rate snap-acting switch apparatus also includes a snap-spring assembly reactive to the actuating lever, wherein the snap-spring assembly is assembled into the stationary anchor and the actuating lever to form a spring-anchor-lever assembly thereof including a central spring member loaded into an axial compression and persuaded to bend into a post-buckled elastic mode shape thereof to form a negative rate snap-acting switch apparatus in which the moveable and the stationary contacts are responsive to an actuating force derived from the snap-spring assembly.

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