Illumination – Self powered lamp – With movable focusing element
Patent
1995-05-23
1996-03-12
Dority, Carroll B.
Illumination
Self powered lamp
With movable focusing element
362202, F21L 700
Patent
active
054991722
ABSTRACT:
A variable focusing flashlight includes a barrel for housing a battery therein. A tail cap is mounted on one end of the barrel and has a spring for urging the battery towards the other end of the barrel. A lamp base retains a lamp adjacent the other end of the barrel. A head assembly is mounted on the other end of the barrel and has a planar lens and a parabolic reflector with an open tail end to receive the lamp. The lamp base includes a stationary receptacle mounted to the barrel, a first conductor mounted in the stationary receptacle for connecting one terminal of the lamp to a positive terminal of the battery, a second conductor mounted in the stationary receptacle for connecting another terminal of the lamp to a negative terminal of the battery via the barrel, and a movable receptacle mounted movably on the stationary receptacle to make or break connection between the first conductor and the battery. A conductive connector has an annular plate adjacent a bottom side of the stationary receptacle, an upwardly extending plate projecting from the annular plate and sandwiched between the stationary receptacle and the barrel, and a pointed protrusion extending from the upwardly extending plate to pierce an inner anodized coating of the barrel to connect electrically with the barrel.
REFERENCES:
patent: 2137881 (1938-11-01), Margulies
patent: 5126927 (1992-06-01), Reeves et al.
patent: 5143441 (1992-09-01), Maglia
patent: 5213408 (1993-05-01), Shiau
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