Electricity: circuit makers and breakers – Special application – Portable light
Patent
1996-07-02
1998-06-09
Scott, J. R.
Electricity: circuit makers and breakers
Special application
Portable light
362205, F21V 2304
Patent
active
057638454
ABSTRACT:
A luminous device comprises a base mount, a circuit housing, a guide disk, a light bulb, a battery set, and a rotary switch. The base mount is provided therein with a receiving compartment in which the circuit housing is located. The circuit housing is provided with a cavity having a female threaded portion, a battery compartment, a light bulb compartment, a upper contact surface located between the threaded portion and the battery compartment, and a lower contact surface located between the battery compartment and the light bulb compartment. The guide disk has a first guide hole and a second guide hole. The light bulb has a short leg extending through the first guide hole, and a long leg passing through the second guide hole to emerge on the upper contact surface. The battery set is located over the guide disk. The rotary switch is mounted in the cavity of the circuit housing such that a male threaded portion of the rotary switch is engaged with the female threaded portion of the circuit housing, and that the rotary switch is located at a high level so as to keep a conducting piece of the rotary switch apart from the long leg of the light bulb at such time when the rotary switch is turned off, and further that the rotary switch is located at a low level so as to cause the conducting piece of the rotary switch to make contact with the long leg of the light bulb at such time when the rotary switch is turned on.
REFERENCES:
patent: 5091611 (1992-02-01), Reeves et al.
patent: 5272606 (1993-12-01), Blaney
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