Communications: electrical – Selective – Having indication or alarm
Patent
1974-07-10
1976-09-14
Caldwell, John W.
Communications: electrical
Selective
Having indication or alarm
340 90, 240 105, 240 1061, 240 52R, 200 60, 200276, B60Q 700
Patent
active
039809897
ABSTRACT:
A base is provided defining an upwardly opening socket for seatingly receiving the lower end of an upright storage battery and a mount defining a downwardly opening socket and including lower marginally extending clamp structure is also provided and telescopable downwardly over the upper end of an upright storage battery and clampably engageable therewith. The downwardly opening socket defined by the mount includes portions thereof through which light rays may be transmitted and a dielectric horizontally disposed panel is received within an upper portion of the socket and has a pair of contact terminals secured therethrough in horizontally spaced relation. The lower portions of the contact terminals project below the dielectric panel for electrical contact with and supported engagement from the upper ends of a pair of horizontally spaced upperly projecting contact terminal defined coil springs carried by the upper portion of and associated storage battery and a generally horizontal member is oscillatably supported from the dielectric panel for angular displacement about a vertical axis. The horizontal member is constructed of conductive material and defines a socket for receiving the base of a light bulb as well as a contact portion spaced from the socket defining portion of the horizontal member. The socket defining portion supports the base of a light bulb with the center terminal at the free end of the base of the bulb in contact with one of the terminals secured through the dielectric panel and the contact portion electrically engaged with the other terminal secured through the dielectric panel, angular displacement of the horizontal member relative to the dielectric panel being operable to displace the associated light bulb and contact portion out of electrical engagement with the through terminals secured through the dielectric panel.
REFERENCES:
patent: 2753442 (1956-07-01), Wiswell
patent: 2848598 (1958-08-01), Amlee
patent: 2885539 (1959-05-01), McDermott
patent: 3014125 (1961-12-01), Draudt
patent: 3087052 (1963-04-01), Torgerson
patent: 3172094 (1965-03-01), Jones
Caldwell John W.
Crosland Donnie L.
Jacobson Harvey B.
O#Brien Clarence A.
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