Back to results
US 4,794,502 AGranted
Stacking louver for light fixture
AssigneeSterner Lighting Systems Incorporated
InventorArthur R. Guggemos
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeSterner Lighting Systems Incorporated
InventorArthur R. Guggemos
Estimating the term…
A stackable louver assembly for light fixtures which can be made of a high strength polycarbonate light transmitting plastic material and which has a sleeve and louver flange molded in one piece so that the sleeve will not be lost or discarded at the job site. The louver assembly becomes self-enclosed. The louver assemblies are made so they can be stacked one on top of the other and fastened with tie rods at desired locations. The sleeve that supports the louver flange is made with a surface that is generally parallel to the longitudinal axis of the assembly, and can be provided with v-type grooves to provide refraction of the light emanating from an interior lamp. The grooves can be molded into the plastic with no increase in cost, and will reduce glare and improve overall performance of the fixture. Likewise, the louver flanges may have surfaces that are provided with refraction grooves, as well.
A louver assembly for a lighting fixture comprising a unitary sleeve, said sleeve having an axial direction with opposite ends spaced along the axial direction and defining a space around said axis, and a louver flange surrounding the sleeve and extending from one end of the sleeve outwardly away from the sleeve and in direction toward the other end of the sleeve to provide an overhanging louver flange, said sleeves being arranged to permit end-to-end stacking of a plurality of sleeve and louver flange assemblies with two surfaces of each sleeve and louver flange assembly abutting when assembled, at least every other sleeve having an end formed to provide a telescoping action with the next adjacent sleeve in the stack to align the sleeve and louver flange assemblies, and a plurality of apertures being formed through the sleeve at spaced locations to permit elongated fasteners to pass through a plurality of apertures to hold a plurality of said sleeve and louver flange assemblies in a stack.
A light assembly comprising a plurality of stacked louver assemblies mounted in end-to-end relationship along a central axis, each of said louver assemblies comprising a central sleeve having first and second ends, and a louver flange mounted on each sleeve, said louver flange being mounted to its sleeve adjacent one end of the respective sleeve, and tapering outwardly from the respective sleeve in direction toward the opposite end of the sleeve, each of said louver assemblies having two mating surfaces at their ends facing another louver assemby in a stack, wherein at least two surfaces of each of the adjacent louver assemblies are substantially contiguous when the louver assembies are stacked in end-to-end relationship, said two substantially contiguous surfaces comprising end surfaces on said sleeves, said sleeves each having an internal shoulder formed therein at the first end and an external shoulder formed at therein opposite end, the shoulders being formed so that a sleeve telescopes into an adjacent sleeve and the end surfaces of each sleeve abut on a shoulder surface of the adjacent sleeve.
A lighting fixture housing comprising a molded sleeve capable of being stacked with other sleeves, each of said sleeves having a central axis, and extending in axial direction, and defining a space around the central axis, each sleeve having a neck at one end and a receptacle at the opposite end so that adjacent ends of first and second sleeves will stack with a first end of a first sleeve telescoping into a second end of a second sleeve for alignment and stacking purposes, a separate louver flange fitting over a first end of at least one sleeve, with a second sleeve overlying the louver flange when the second sleeve telescopes onto the one sleeve, the louver flange extending from a first end of the one sleeve toward a second end of the same sleeve, and means for retaining fasteners for clamping the sleeves axially.
Dependencies are inferred from the claim text.