Flashlight

Details Flashlight Flashlight

1986-03-06

1987-04-07

Cox, Ronald B.

Illumination

Self powered lamp

With movable focusing element

362205, 362197, F21L 700

Patent

active

046565655

ABSTRACT:
A flashlight includes a barrel for retaining batteries. A reflector and lens located at one end is rotatable axially to vary the reflection dispersion of a light beam emanating through the lens from a lamp bulb. An internal cylindrical sleeve within the barrel provides the electrical path between a tail cap adjacent the one electrode end of the batteries and the end adjacent the reflector, lens, and bulb. The sleeve is a non-ferrous nickel plated material for improved conductivity between component parts.

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patent: 2915621 (1959-12-01), Garland
patent: 2931005 (1960-03-01), Saurwein
patent: 4203150 (1980-05-01), Shamlian
patent: 4234913 (1980-11-01), Ramme
patent: 4261026 (1981-04-01), Bolha
patent: 4286311 (1981-08-01), Maglica
patent: 4329740 (1982-05-01), Colvin
patent: 4388673 (1983-06-01), Maglica
patent: 4398238 (1983-08-01), Nelson
patent: 4429351 (1984-01-01), Petzl
patent: 4472766 (1984-09-01), Hung
patent: 4577263 (1986-03-01), Maglica

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