Illumination – Self powered lamp – Lamp bulb or lamp support axis adjustable or angularly fixed...
Patent
1986-02-11
1987-04-14
Cox, Ronald B.
Illumination
Self powered lamp
Lamp bulb or lamp support axis adjustable or angularly fixed...
362203, 362205, 362187, F21L 700
Patent
active
046583360
ABSTRACT:
A miniature flashlight comprising a barrel, tail cap, head assembly, and bulb holder providing interruptible contact to batteries within the barrel. The bulb holder comprises an insulated receptacle external to the barrel end engaging the head assembly, a second insulated receptacle within the barrel engaging the first receptacle enabling both receptacles to translate axially, limited by a flange on the first receptacle and an annular lip formed inwardly at the barrel end, a pair of conductors mounted in the second receptacle couple one conductor with the center electrode of a battery with the first bulb pin and the other conductor with the second bulb pin to the barrel lip. A spring fits between the tail cap and the batteries. The circuit is closed by the barrel, tail cap, and spring coupling the second lamp pin to the battery case terminal. Threading the head assembly onto the barrel causes head assembly translation towards the tail cap and moves the reflector relative to the bulb, varying dispersion of the reflected lamp beam. Further rotation of the head assembly contacts the reflector with the first receptacle, translating both receptacles and the batteries against the spring, until the first receptacle flange abuts the barrel end, whereat the side conductor no longer contacts the barrel lip, opening the circuit. The head assembly is removable from the barrel for use as a base into which the tail cap and barrel is inserted to stand the miniature flashlight, in its "on" condition, as a table lamp.
REFERENCES:
patent: 1584539 (1926-05-01), Hopkins
patent: 1680169 (1928-08-01), Osean
patent: 2016819 (1935-10-01), McGinniss
patent: 2097222 (1937-10-01), Tompkins
patent: 2339356 (1944-01-01), Sachs
patent: 2490830 (1949-12-01), Norton
patent: 2945944 (1960-07-01), Gillespie
patent: 4203150 (1980-05-01), Shamlian
patent: 4234913 (1980-11-01), Ramme
patent: 4261026 (1981-04-01), Bolha
patent: 4329740 (1982-05-01), Colvin
patent: 4398238 (1983-08-01), Nelson
patent: 4429351 (1984-01-01), Petzl
patent: 4495551 (1985-01-01), Foltz
patent: 4531178 (1985-07-01), Uke
patent: 4577263 (1986-03-01), Maglica
Cox Ronald B.
Mag Instrument Inc.
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