Luminaire apparatus with multiple light sources including method and means for switching and adjusting focus of the light sources

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4386391
SERIAL NO

06173057

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A holder, for example a multiple light source socket, is mechanically travelled in a supporting structure, in both rotary and linear paths of travel. Rotary travel provides for interchangeably locating lamps along a focal axis in a luminaire housing. Linear travel of the socket provides a focusing adjustment for each lamp along the focal axis to position it at a desired point of focus. In one form the supporting structure may comprise a miner's cap lamp having an externally located knob which may be manually turned by a miner to move the socket member. Other forms of supporting structures and movable parts may be provided as hereinafter disclosed.

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Patent Owner(s)

Patent OwnerAddress
KOEHLER MANUFACTURING COMPANYMARLBOROUGH MA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Daly, Charles F Boylston, MA 3 42
Guimond, Roy A Holden, MA 9 85
Gulliksen, John E Shrewsbury, MA 16 245

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