Curved shatter-resistant lamp assembly and method
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United States of America Patent
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Mar 28, 2000
Issued Date -
N/A
app pub date -
Feb 12, 1998
filing date -
Sep 2, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A shatter-resistant lamp assembly is formed by encasing a cylindrical lamp bulb in a seamless non-frangible sleeve that is sealed at each end to one end of the lamp. A straight lamp assembly is made by applying an adhesive to each end of a straight lamp bulb, preferably by wrapping double-sided adhesive transfer tape around each metal end cap of the lamp bulb, inserting the bulb into the sleeve with the ends of the sleeve overlapping the tape wound on each end of the bulb, and compressing the ends of the sleeve onto the tape by heat-sealing. A curved lamp assembly is formed by molding two halves of a curved sleeve with contours to fit the curved lamp bulb. Adhesive is applied to the ends of the curved lamp bulb, the two halves of the sleeve are fastened together with adhesive or by ultrasonic bonding, and the ends of the sleeve are attached to the ends of the bulb by the same means as that used for the straight lamp assembly.
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