Illumination – Self powered lamp – With movable focusing element
Patent
1987-06-08
1989-03-21
Argenbright, Tony M.
Illumination
Self powered lamp
With movable focusing element
362110, 362207, 362294, 362296, F21L 700, F41G 134
Patent
active
048149578
ABSTRACT:
A spotlight with adjustable focusing that can be held in a fixed position. The reflector has a hub which screws on over the bulb holder which is supported by the light handle. The outer side of the hub has alternating ridges and valleys. A detent is attached to the handle and fits into any valley which might be selected to hold the light in a fixed focusing position. The light can be secured to adjustable rifle telescope studs.
REFERENCES:
patent: 1433570 (1922-10-01), Stimson
patent: 1561757 (1925-11-01), Turner
patent: 2128526 (1938-08-01), Eslick
patent: 2339356 (1944-01-01), Sachs
patent: 4286311 (1981-08-01), Maglica
patent: 4310874 (1982-01-01), Spiteri
patent: 4502103 (1985-02-01), Collins
patent: 4535397 (1985-08-01), May
patent: 4707772 (1987-11-01), Jimenez et al.
Argenbright Tony M.
Carlberg Eric R.
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