Electricity: single generator systems – Generator control – With excitation winding and/or circuit control
Patent
1993-06-07
1995-06-06
Lazarus, Ira S.
Electricity: single generator systems
Generator control
With excitation winding and/or circuit control
362204, F21L 700
Patent
active
054227984
ABSTRACT:
A switch for use in a flashlight assembly including a tubular body for containing or receiving a power source such as at least one battery. A light assembly including a light source coupled to one end of the body, and a switch assembly closing an opposite end of the body and moveable about a longitudinal axis of the body between at least a first position for placing the light source in electrical continuity with the power source and a second position breaking the electrical continuity between the light source and the power source. The switch includes a tubular housing detachably received in the opposite end of the body and having a detent extending inwardly from an inner surface thereof. The housing concentrically receives a neck portion of an end cap which closes the housing and forms one end of the flashlight. A pair of grooves, one on each side of a cantilevered spring in the neck portion, accepts the detent extending from the housing. The grooves and spring define first and second positions for the switch. The neck portion also contains a concentric hole which receives a contact assembly for making electrical continuity between the power source in the body and the open terminal of the light source. The contact assembly is retained within the neck portion, and the end cap is retained within the housing by a retaining member snapped into the concentric hole of the end cap neck. The retaining member includes a flange which prevents withdrawal of the end cap while permitting rotation between the first and second position.
REFERENCES:
patent: 2226353 (1940-12-01), Wood
patent: 2503287 (1950-04-01), Moore
patent: 4823242 (1989-04-01), Maglica et al.
patent: 4890203 (1989-12-01), Watson
patent: 4949231 (1990-08-01), Wang
Au K. W.
Furth David A.
Hale Stephen M.
Osiecki Scott W.
Cariaso Alan B.
Cooper Richard C.
Eveready Battery Company Inc.
Lazarus Ira S.
Welsh Robert W.
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