Gte Products Corporation

Other

Michael L Martin

Merle E Morris

George Bevin Kendrick

Larry R Fields

Louis D Neff

Charles F Gauthier

A double jacket arc lamp is disclosed. A double jacket arc lamp may be formed with an electric lamp capsule having an inner light transmissive envelope with electrical lead extending from the inner envelope through a first seal, and a second light transmissive envelope sealed to the inner envelope at a second seal to substantially surround the electric lamp capsule and form an enclosed volume between a portion of the exterior of the inner envelope and the interior of the outer envelope, and leaving the leads unenclosed by the outer envelope. The lamp leads then pass through only one seal, and have no portions exposed in the intermediate insulating volume. The inner capsule is then aligned once, while still being for the most part protected by a double envelope.

Double jacket lamp

A method of constructing a filament support member from a single-piece preformed refractory metal wire having at least one loop protrusion formed in the wire and positioned between the ends of the wire. A section of glass tubing is positioned over and supported by the loop protrusion with a head portion of the loop extending beyond the section of tubing. Heat is applied to melt the section of tubing to form an insulating bead at the base of said loop protrusion. The head portion of the loop protrusion is then trimmed to interrupt electrical continuity in the wire and thus electrically isolate the respective ends of the wire.

Lamp filament support construction

A method and apparatus for stabilizing an interior surface pipe within an exterior casing pipe are disclosed. The casing stabilizer apparatus comprises a cylindrical separable hanger body made up of a pair of body half-sections. Each body half-section includes tapered exterior walls and an interior bore with serrated teeth therein for gripping a surface pipe placed within said bore when assembled. A downward depending lip portion defining a space for engaging the uppermost end of the exterior casing pipe is also provided on each hanger body half-section. A locking means is provided for securing the body half-sections together. The hanger body is attached to an interior surface pipe above the exterior casing pipe, and then lowered onto the exterior casing pipe.

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Jeffersonville, KY, United States of America

Michael L Martin