Illumination – Self powered lamp – Cylindrical flashlight casing
Patent
1988-04-27
1989-03-07
Ostrager, Allen M.
Illumination
Self powered lamp
Cylindrical flashlight casing
200 60, F21L 700
Patent
active
048111767
ABSTRACT:
A tubular battery-receiving casing has a resilient member at one end urging a first conductor into electrical contact with one terminal of a battery assembly. Such first conductor includes a portion extending lengthwise along a side of the casing. At the other end of the casing, a lamp assembly has a conductor with a V-shaped annular portion forming a flared groove. Such annular portion is in electrical contact with the other battery terminal through the positive and negative terminals of a lamp. A switch member in the form of a long loop of conductive material return bent at both ends is slidable lengthwise of the casing to connect and disconnect the base and lamp conductors. The leading end of the switch loop fits in the flared groove of the conductor for a reliable electrical connection.
REFERENCES:
patent: 1257596 (1918-02-01), Ford
patent: 1365988 (1921-01-01), Hambuechen
patent: 1377477 (1921-05-01), Hambuechen
patent: 2271421 (1942-01-01), Gits
patent: 2731545 (1956-01-01), Bolinger
patent: 2931005 (1960-03-01), Saurwein et al.
patent: 3261972 (1966-07-01), Stahl
patent: 4570208 (1986-02-01), Sassmannshausen
Beach Robert W.
Brown Ward
Ostrager Allen M.
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