Flashlight

Details Flashlight Flashlight

1976-09-27

1979-04-24

Miller, J D

Illumination

Self powered lamp

Cylindrical flashlight casing

F21L 900

Patent

active

041515838

ABSTRACT:
A flashlight has one or more batteries disposed in a first tubular housing section, a switch disposed in a second tubular housing section, and a lamp assembly with a light bulb disposed in a third tubular housing section. The first and second housing sections are joined by a threaded connection. The second and third housing sections are joined by a threaded connection, either directly or indirectly through a fourth tubular housing section in which one or more batteries are disposed. The switch has an elongated switch post supported to extend between two holes on opposite sides of the second housing section and to move axially toward one hole or the other without protruding substantially beyond the surface of the housing. An electrical circuit for the batteries and the bulb is opened and closed responsive to axial movement of the switch post. Diaphragms adjacent to the ends of the switch post seal the two holes. A baffle separating the lamp assembly from the batteries transfers axial inertial battery forces in the direction of the lamp assembly directly to the housing to isolate the bulb from such forces except as transferred through the housing, attenuating means, a bulb supporting reflector, and spring contacts

REFERENCES:
patent: 1195728 (1916-08-01), Recker
patent: 1375586 (1921-04-01), Graves
patent: 2229486 (1941-01-01), Barash et al.
patent: 2277633 (1942-03-01), Ceader
patent: 2309402 (1943-01-01), Korngold
patent: 2530913 (1950-11-01), Shackel
patent: 3007110 (1961-10-01), Rosenstrach
patent: 3710092 (1973-01-01), Olbermann, Jr.
patent: 3798440 (1974-03-01), Brindley
patent: 3870843 (1975-03-01), Witte
patent: 3890498 (1975-06-01), Toth, Sr.
patent: 3924116 (1975-12-01), Brindley

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