Double end operable axial switch

Claim 1

A SWITCH COMPRISING AN HERMETICALLY SEALED ENVELOPE HAVING OPPOSITELY DISPOSED REENTRANT PORTIONS INCLUDING EXPANSIBLE SECTIONS AND TRANSVERSE WALL SECTIONS AXIALLY SPACED APART AND MOVABLE IN UNISON IN AN AXIAL DIRECTION WITHIN THE ENVELOPE, A MOVABLE CONTACT WITHIN THE ENVELOPE MOUNTED ON ONE OF THE MOVABLE TRANSVERSE WALL SECTIONS, A FIXED CONTACT WITHIN THE ENVELOPE INCLUDING A TUBULAR CONDUCTIVE CONTACT SUPPORT MEMBER COAXIALLY DISPOSED ABOUT ONE OF SAID REENTRANT PORTIONS, AND CONTACT ACTUATING MEANS JOURNALED ON THE ENVELOPE AND CONNECTED WITH THE MOVABLE CONTACT AND OPERABLE FROM EITHER END THEREOF TO MOVE THE MOVABLE CONTACT INTO AND OUT OF ENGAGEMENT WIH THE FIXED CONTACT, THE CONTACT ACTUATING MEANS INCLUDING SEPARATE ACTUATOR SHAFTS HAVING THEIR OUTER END PORTIONS JOURNALED IN THE ENVELOPE ADJACENT OPPOSITE ENDS THEREOF AND THEIR INNER ENDS FIXED TO THE AXIALLY SPACED TRANSVERSE WALL SECTIONS, AND AN ACTUATOR SHAFT EXTENSION INSULATINGLY INTERPOSED BETWEEN THE TRANSVERSE WALL SECTIONS IN ALIGNMENT WITH THE SEPARATE ACTUATOR SHAFTS.