Benjamin H Barber

US Patent:

47571659, Jul 12, 1988

Filed:

Oct 28, 1987

Appl. No.:

7/114487

Inventors:

Leo Marcoux - Rehoboth MA
Benjamin A. Barber - Attleboro MA
Lawrence E. Cooper - Attleboro MA
Carlton E. Sanford - E. Providence RI

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H01H 3534

US Classification:

200 83P

Abstract:

A dual condition responsive switch is shown including first and second discs each having convex-concave surface configurations on opposite sides thereof adapted to invert its configuration upon being subjected to selected conditions. A motion transfer member extends from the second disc to an electric switch. At a first range of conditions the first disc prevents actuation of the switch, at a second range of conditions the curvature of the first disc has inverted allowing actuation of the switch while at a third range of conditions the curvature of the second disc has inverted resulting in deactuation of the switch.