Adjustable overhead lighting system
AssigneeHerst Lighting Co.
InventorsDouglas J. Herst, Henry H. Iwahashi
Life of this patent
Estimating the term…
Abstract
An adjustable overhead lighting fixture having fixed elongated support runners, which themselves may or may not be lighting fixtures, and a plurality of elongated hanger fixture elements which endwise releasably engage and span any two support runners at any point along the length of the runners and which are electrified from the runners. Hanger fixture elements may be used to support and electrify other hanger fixture elements such that the fixtures can be arrayed overhead to meet a variety of lighting applications.
Claims21
An adjustable overhead lighting system comprising
- a set of elongated support runners of a uniform cross-sectional shape suspended overhead in spaced parallel relation with other support runners, said set of support runners having electrical source means,
- a plurality of elongated hanger fixture elements, each hanger fixture element having an elongated lamp housing and end cap means projecting from the ends of said lamp housing, said end cap means being formed to releasably endwise engage the sides of said support runners along the length thereof whereby said hanger fixture element can be supported between adjacent parallel support runners substantially anywhere along the length of said support runners,
- said hanger fixture elements having electrical means including electrical path means for electrifying the lamps in said hanger fixture element lamp housing from the electrical source means of said support runners, when said hanger fixture elements are positioned on said support runners.
An adjustable overhead lighting system comprising
- a set of elongated support runners having opposite side walls projecting upwardly on either side and the vertical center plane of said runners to form opposed upper support rims which extend substantially the length of said runners, said support runners being horizontally suspended overhead in spaced parallel relation to one another and having electrical source means along the length thereof,
- a plurality of hanger fixture elements, each of said hanger fixture elements being comprised of an elongated lamp housing of a length to span said spaced apart support runners and including an end cap means at each end of said housing, said end cap means having a laterally projecting portion formed to releasably engage the upper rim of one of the side walls of any one of said support runners whereby said hanger fixture element can be supported between adjacent support runners on the adjacent sidewalls thereof anywhere along the length of said runners,
- each of said hanger fixture elements having means including electrical path means for electrifying the lamps in the lamp housings thereof from the electrical source means of the support runners.
An adjustable overhead lighting system comprising,
- a set of elongated support runners of uniform cross-section, each of said support runners having opposite arcuate side walls projecting upwardly on either side of the vertical center plane of said support runners to form opposed upper support rims which extend substantially the length of said runners, said support runners being horizontally suspended overhead in spaced parallel relation to another and having electrical source means along the length thereof,
- a plurality of hanger fixture elements, each of said hanger fixture elements being comprised of an elongated lamp housing of a length to approximately span the space between adjacent support runners, and each of said hanger fixture elements including an end cap means at each end of said housing,
- adjustment means for adjusting the axial position of said end cap means with respect to said lamp housing of said hanger fixture element,
- said end cap means having a laterally projecting portion formed to releasably engage the upper rim of one of the side walls of any one of said support runners and further having an outwardly facing arcuate bracing surface extending downwardly from the laterally projecting portion thereof such that said bracing surface of said end cap means will mate substantially flush against the arcuate side walls of a support runner, the upper end of said arcuate bracing surface of said end cap means terminating in a downwardly projecting locking ridge formed at the end of the laterally projecting portion of said end cap means whereby the end cap means of said hanger fixture elements, when braced against the side wall of said runner at any position therealong, will removably lock into position on said runner,
- each of said hanger fixture elements having means including electrical path means for electrifying the lamps in the lamp housing thereof from the electrical source means of the support runners.
A hanger fixture element for an adjustable overhead lighting system comprising an elongated lamp housing having a substantially uniform cross-section along the length thereof, and end cap means formed to releasably engage, in perpendicular relation thereto, other hanger fixture elements at any point along the length thereof whereby said hanger fixture elements can be moveably supported between other hanger fixture elements suspended over head in adjacent parallel relation anywhere along the length of said elements.
Dependencies are inferred from the claim text.