Illumination – Self powered lamp – With movable focusing element
Patent
1991-11-22
1992-06-23
Cole, Richard R.
Illumination
Self powered lamp
With movable focusing element
362205, F21L 1502
Patent
active
051248948
ABSTRACT:
A variable focusing flashlight includes a metal barrel and an insulating support fixed in the barrel by a metal pin. A first clamping member includes a first tubular portion fixed in an inner peripheral flange of the insulating support, and a first radial flange resting on the inner peripheral flange. A bulb has a radial conductive flange resting on the first radial flange and a bottom conductive bead connected to a cell in the barrel. A second clamping member includes a second tubular portion detachably sleeved over the first clamping member and a second radial flange clamping the radial conductive flange against the first radial flange. A compression spring is sleeved around the inner peripheral flange and electrically contacts the pin and the second clamping member. A second insulating tubular member is slidably sleeved around the second clamping member and rests on the compression spring. A head adapted to threadedly engage the metal barrel has a concave reflector mounted in the head to contact the second insulating tubular member.
REFERENCES:
patent: 4472766 (1984-09-01), Hung
patent: 4916588 (1990-04-01), Chu
patent: 4942505 (1990-07-01), Maglica
patent: 5021934 (1991-06-01), Hou
LandOfFree
Variable focusing flashlight does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Variable focusing flashlight, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable focusing flashlight will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-938281