Flashlight with swivel head and rotary switch

Details Flashlight with swivel head and rotary switch Flashlight with swivel head and rotary switch

1991-08-09

1992-11-03

Yeung, James C.

Illumination

Self powered lamp

Lamp bulb or lamp support axis adjustable or angularly fixed...

362199, 362206, 200 60, F21L 700

Patent

active

051610957

ABSTRACT:
A flashlight having a casing containing a pair of batteries, a head assembly mounted on an upper end of the casing, and a tail assembly mounted on a lower end of the casing. The head assembly includes a swivel head carrying a bulb with the swivel head being rotatable about a swivel axis which is inclined with respect to a longitudinal axis of the casing. The tail assembly includes a rotary switch for illuminating and extinguishing the bulb. The bulb has a terminal which is connected electrically to a negative terminal on one of the batteries by operating the rotary switch. Another terminal on the bulb is connected electrically to a positive terminal on the other battery. The rotary switch includes a lifter that is movable in response to rotation of the tail cap for lifting a spring out of contact with a conductive insert in the casing lower end thereby electrically disconnecting the conductive means and the battery negative terminal.

REFERENCES:
patent: 1173984 (1916-02-01), Rosenfeld
patent: 1340550 (1920-05-01), Madigan
patent: 1404258 (1922-01-01), Alschuler
patent: 1404259 (1922-01-01), Alschuler
patent: 1832563 (1931-11-01), Kuhn
patent: 1832564 (1931-11-01), Kuhn
patent: 1986281 (1935-01-01), Nygard
patent: 2225936 (1940-12-01), Williams
patent: 2256641 (1941-09-01), Fullmer
patent: 3835272 (1974-09-01), Wisenbaker
patent: 4737892 (1988-04-01), Ohashi
patent: 4841417 (1989-06-01), Maglica
patent: 4890203 (1989-12-01), Watson
patent: 4907135 (1990-03-01), Tarrson
patent: 4914555 (1990-04-01), Gammache
patent: 4956755 (1990-09-01), Maglica

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