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Nonmetallic Processes

Keyboard-switch

Web applicator

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Keyboard switch

Details

Inventors: Golbeck, Bernard J.; Lewandowski, Raymond F.; Markinson, William C.;
Assignee: Oak Industries Inc. (Crystal Lake, IL)
Primary Examiner: Schaefer; Robert K.
Assistant Examiner: Ginsburg; Morris
Attorney, Agent or Firm: Kinzer, Plyer, Dorn & McEachran

A pushbutton switch has a base and a button telescopically movable on the base. There are a pair of terminals, with one of the terminals having a contact arm positioned within a switching chamber in the base. Movement of the button is effective to cause the contact arm to close upon the other terminal. The effective length of the contact arm is greater than its actual length. In one improvement, a light emitting device may be illuminated when the switch is operated. In another, a portion of the light emitting device forms the means to close the contact arm.

DETAILED DESCRIPTION The present invention relates to improvements in pushbutton switches.
One purpose of the present invention is a pushbutton switch of the type shown in the above-mentioned copending application including light indicating means.
Another purpose is a pushbutton switch of the type described in which the light indicating means forms a portion of the switch operator.
Other purposes will appear in the ensuing specification, drawings and claims.

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