Explosion-proof headlamp and power source
United States Patent 3209138
US Patent References:
Battery casing
- - 1634475

Illumination apparatus
- - 1948690

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- - 2066811

Water and gas tight light
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Explosionproof enclosure for electrical devices
- - 2316835


Inventors:
Moore, William C.
Pilgrim, William S.
Publication Date:
09/28/1965
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Assignee:
WELCH ALLYN INC
Primary Class:
362/158
Other Classes:
174/50.500
International Classes:
F21L14/00; F21V25/12; F21V25/00
US Patent References:
2333028Battery pack
2353537Diagnostic headset
2517422Forehead lamp device for doctors
2540341Sealed in blinking mine car light
2600418Flashlight comprising permanently assembled lamp, cell, housing, and switch structure
2628339Portable flashlight with storage battery and rectifier
2791706Temperature-controlled enclosure for electrical components
2848598Flashlight with battery locking device
3133703Desk lamp structure