American Telecommunications

Gary M Petaja

Walter R Johnson

A push-button assembly in which a cluster of push-buttons arranged in a circle or in a rectangular matrix, when depressed, engage a common plate positioned beneath the push-buttons. The plate is pivotally supported at its center by a spring which urges the plate towards the push-buttons. When any of the push-buttons is depressed it engages the plate at a point spaced from the central pivot. This causes the plate to tilt about its outer periphery, compressing the spring and actuating a common switch.

Growing community of inventors

Sierra Madre, CA, United States of America

Gary M Petaja