Electric lamp and discharge devices: systems – Current and/or voltage regulation – Automatic regulation
Reexamination Certificate
2007-12-04
2007-12-04
Philogene, Haissa (Department: 2821)
Electric lamp and discharge devices: systems
Current and/or voltage regulation
Automatic regulation
C315S291000, C315S20000A, C315S18500S, C315S216000, C362S106000, C362S227000
Reexamination Certificate
active
11429575
ABSTRACT:
A three-component, protective headgear or helmet, and circuits therefor is provided with a battery-powered LED head lamp, which may be used by construction workers, search and rescue persons, cyclists, police, fireman, and the like. The battery may be replaceable or rechargeable and has long-term, uniform output characteristics driven by unique circuitry.
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Colwell Walter R.
Krawitz Willie
Philogene Haissa
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