Browse Prior Art Database

Subminiature Switch for High Usage and Low Current Applications

IP.com Disclosure Number: IPCOM000089534D
Original Publication Date: 1977-Nov-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 50K

Publishing Venue

IBM

Related People

Bunch, DR: AUTHOR [+3]

Abstract

A problem in designing a reliable switch for low current applications is that the contacts become dirty and electrical continuity is lost. This design has a "designed in" mechanical scrub at the contacts to insure continuity.

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Subminiature Switch for High Usage and Low Current Applications

A problem in designing a reliable switch for low current applications is that the contacts become dirty and electrical continuity is lost. This design has a "designed in" mechanical scrub at the contacts to insure continuity.

The figure shows the action of the switch 10 in the on and off positions. In the off position the contacts 12, 14 are separated as the plunger 16 is moved by cam 20. The switch 10 is turned on by releasing the plunger 16. As the moving contact 14 touches the stationary contact 12, the compression spring 18 causes the moving contact 14 to deflect. This deflection results in a scrub action between the moving contact 14 and stationary contact 12.

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