Portable electric lamp adjustable from spot beam to diffused beam
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 22, 1980
Issued Date -
N/A
app pub date -
Mar 3, 1978
filing date -
Dec 16, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A portable electric lamp including a body 1 mounting a lens 2, a lens holder 3, a reflector 5, and a bulb holder 6 is provided with a translucent diffuser sleeve 7 which has slots 8 which extend lengthwise thereof. The diffuser sleeve is coaxial with and surrounds the bulb holder and is associated with drive means 10-13 operable to effect axial movement of the diffuser sleeve relative to the bulb holder between a retracted position at which a bulb held in the bulb holder is arranged to direct a spot beam through the lens and a forward position at which light from the bulb is diffused by passage through the diffuser sleeve.
First Claim
Family
International Classification(s)
Cited Art Landscape
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