Gte Sylvania Incorporated

Stephen F Kimball

Paul E Gates

Stephen J Leadvaro

Roy C Martin

Warren H Hay

In a press-sealed single-ended tubular incandescent lamp, the support means thereof is embedded in the press seal and protrudes from the edge thereof, substantially orthogonal to the axis of the lamp.

Incandescent lamp having embedded support means

An electric switch for thermal overload protection includes a meltable pellet containing a pool of mercury which establishes electrical contact between two lead-in wires. When the pellet is heated to its melting point, the mercury becomes unconfined and the circuit is opened.

Thermal fuse

Method of making thermal fuse

The support means for a press-sealed single-ended tubular incandescent lamp comprises support wires which are embedded in the press seal and protrude from the edge thereof, substantially orthogonal to the axis of the lamp.

Incandescent lamp having embedded support wires

A circuit breaker has a thermally sensitive bimetal connected across two lead-in wires in a glass envelope. An electrically conductive bypass element is in parallel with the bimetal and shorts it out. The bypass element can be removed from the circuit by melting it by means of a short duration pulse of high electric current.

Circuit breaker with parallel shorting element

An electric lamp having a light-transmitting envelope, such as a glass bulb, secured to a plastic base having a symmetrical wedge-lock portion. Lead-in wires from the glass bulb are threaded through channels in the plastic base and extend alongside the wedge-lock portion to form contacts without soldering.

Electric lamp with insulating base

An electric lamp having a light-transmitting envelope, such as a glass bulb, secured to a plastic base having a symmetrical wedge-lock portion. Lead-in wires from the glass bulb are threaded through channels in the plastic base and are bent around the wedge-lock portion to form contacts without soldering.

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Georgetown, MA, United States of America

Stephen F Kimball