Flashlight

Details Flashlight Flashlight

2007-11-13

2007-11-13

Alavi, Ali (Department: 2875)

Illumination

Self powered lamp

Cylindrical flashlight casing

C362S204000

Reexamination Certificate

active

11342082

ABSTRACT:
A switch device of a flashlight includes a tubular switch housing disposed in a barrel, abutting against a coupling ring mounted fixedly in the barrel, and having an outer circumferential surface formed with an engaging groove corresponding to a positioning groove in the inner surface of the barrel. The engaging groove has a depth that gradually increases toward an open end of the barrel. A switch unit is housed in the switch housing, and includes an operating member extending outwardly of the barrel through an opening in the switch housing and a through hole in the barrel. A wedge member engages the positioning groove in the barrel and the engaging groove in the switch housing, and has a thickness that gradually increases toward the open end of the barrel so as to prevent movement of the switch housing in the barrel.

REFERENCES:
patent: 3924116 (1975-12-01), Brindley
patent: 4843526 (1989-06-01), Price, III
patent: 4951183 (1990-08-01), Wang
patent: 6336732 (2002-01-01), Shiau
U.S. Appl. No. 11/377,061, filed Mar. 16, 2006, entitled “Flashlight” by Wen-Chin Shiau, 19 pages.

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