Lighting fixture assembly
AssigneeH.E. Williams, Inc.
InventorJoseph William Lupicki
Life of this patent
Estimating the term…
Abstract
A lighting fixture for mounting from a suspensory surface, such as a ceiling, wall, or the like, includes a counterweight for balancing or equalizing the weight in the fixture resulting from a ballast being positioned within the frame of the fixture. The weight of the frame is adjusted to equalization relative to the ballast for proper alignment during mounting of the lighting fixture.
Claims7
A lighting fixture for mounting relative to a suspensory surface, comprising:
- (1) means for mounting the fixture from the suspensory surface;
- (2) a frame having side members carried by the mounting means;
- (3) at least one bulb—receiving socket mounted within said frame;
- (4) ballast means placed within one side member of said frame and in electric actuatable communication with said socket;
- and
- (5) selectively operable counterbalance means carried on another of the side members for transferring the center of gravity in said fixture to counter the weight of said ballast means during mounting of the fixture relative to the suspensory surface.
The fixture of claim one wherein the counter balance means comprises:
- (1) a hand-manipulatable adjuster held in fixed position relative to one of said side members;
- (2) control means extending from said adjuster;
- (3) a counter weight carried by said control means and a moveable relative to said ballast by manipulation of said adjuster;
- (4) a plate secured to another of said side members, and for mounting said counter weight for movements there along;
- and
- (5) means on said control means and said plate for transferring movements of said adjuster to said plate to move said counter balance in directions relative to said ballast for equalization of the weight of said frame and correct horizontal or vertical adjustment of said fixture relative to said suspensory surface.
The fixture of claim two further including at least one stop disposed on said plate resisting movement of said control means in at least one direction.
The fixture of claim one, wherein the mounting means includes a plurality of pendant wires, each wire having one end secured to the frame and another end extending from the ceiling.
The fixture of claim one, wherein the bulb receiving socket includes a housing for receipt of a fluorescent bulb
The fixture of claim one, wherein the suspensory surface is a ceiling.
The fixture of claim one, in which the side members are parallel to one another.
Dependencies are inferred from the claim text.