Illumination – Self powered lamp – Cylindrical flashlight casing
Patent
1991-10-28
1993-04-27
Cole, Richard R.
Illumination
Self powered lamp
Cylindrical flashlight casing
362202, F21L 700, F21L 1500
Patent
active
052056406
ABSTRACT:
A miniature flashlight comprising a bulb, a casing holding batteries therein, a head rotatably mounted on said casing, a rotary member for connecting electrodes of the battery to terminals of the bulb, and a conductive member. The rotary member is made of non-conductor and provided with connectors made of conductor and also is disposed between the head and the casing in order to rotate in accompanying with rotation of the head with respect to the casing. The conductive member selectively contact with one of the connectors of the rotary member. The conductive member engages with the casing so that the conductive member is rotated in accompanying with the casing with respect to the head. One of the connectors of the rotary member selectively contacts with the conductive member in accordance with rotation of the head with respect to the casing irrespective of the rotational direction, while the other of the connectors always connects the negative terminal of the bulb to the positive electrode of the batteries, thereby turning the bulb on and off in accordance with the rotation of the head with respect to the casing irrespective of rotational direction.
REFERENCES:
patent: 1342322 (1920-06-01), Boulanger
patent: 2261536 (1941-11-01), Wood
patent: 2461118 (1949-02-01), Lippincott
patent: 2852632 (1958-09-01), Garland
patent: 2852633 (1958-09-01), Garland
patent: 4800469 (1989-01-01), Leon
patent: 4899265 (1990-02-01), Maglica
patent: 5021934 (1991-06-01), Hou
Cole Richard R.
Nuri Co., Ltd.
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