Illumination – With wearing apparel or body support – Head covering or clamp
Patent
1994-06-29
1996-06-25
Yeung, James C.
Illumination
With wearing apparel or body support
Head covering or clamp
362253, 362396, 362418, 2482291, 16337, F21L 1514
Patent
active
055306314
ABSTRACT:
An apparatus for attaching a light housing to a conventional mask body or other suitable structure, in which a stationary clamp bracket and a moveable clamp bracket are used to fix a relative position of a clamp body with respect to the mask body or other structure. An externally threaded clamp adjustment screw is rotatably mounted with respect to the clamp body and is used to adjustably move and lock the moveable clamp bracket with respect to the stationary clamp bracket. A track receptacle, which is fixed with respect to the clamp body, has a track bore. A track rod which is fixed with respect to the light housing, is rotatably mountable within the track bore. A lock-bearing rod is slidably mounted with a longitudinal track rod bore of the track rod. A return spring mounted within the longitudinal track rod bore, a compression spring surrounding the lock-bearing rod, and a lock-bearing positioned within a transverse lock-bearing bore of the track rod allow the light housing to be rotatably adjusted and locked with respect to the clamp body.
REFERENCES:
patent: 1900906 (1933-03-01), Brown
patent: 2320209 (1943-05-01), Bahr
patent: 2420362 (1947-05-01), Ekleberry
patent: 2904670 (1959-09-01), Calmes
patent: 3087049 (1963-04-01), Schecter
patent: 3350552 (1967-10-01), Lawrence
patent: 3500037 (1970-03-01), Starck, II
patent: 4638410 (1987-01-01), Barker
patent: 4781422 (1988-11-01), Kimble
patent: 5016151 (1991-05-01), Mula
patent: 5180220 (1993-01-01), Van Kalsbeek
patent: 5224772 (1993-07-01), Fustos
Four photographs, photos 1-4, of a conventional lock pin apparatus.
Investigation of Permissible Electric Mine Lamps, Bulletin 441, United States Department of the Interior (1930-1940).
Bleyaert Alex
Smith Tristan P.
Smith, III Tom Y.
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