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US4864476A Expired / Lapsed US ⏱️ 0.0 years remaining

Outdoor lighting system

Assignee: QUALITE SPORTS LIGHTING Inc A MI CORP
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Filing: 1988-06-23
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Granted: 1989-09-05
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Expires: 2008-06-23
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Abstract

Abstract An outdoor lighting system utilizing reflectors capable of producing a uniform distribution of light over a large area. The system reflectors employ parabolic reflecting surfaces utilizing a plurality of adjacent small concave and convex configurations for distributing the light in a uniform manner with a minimum of spillage, and a single reflector may employ three separate types of reflecting configurations to achieve the desired result at variable distances from the light source.

Inventors

  • 👤 Thomas M. Lemons
  • 👤 Kenneth M. Spink

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 16:35
CPC Classifications
F; F21; F21V; F21V7/00; F21V7/04; F21V7/09; F21W; F21W2131/00; F21W2131/10; F21W2131/105

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 100 words
A reflector for a light fixture comprising, in combination, a substantially parabolic reflecting shell having an inner concave light reflecting surface having a longitudinal axis adapted to be obliquely disposed to a horizontal plane during use and a plurality of adjacent elongated ridges and recesses defined in said shell inner surface having their length generally vertically oriented with respect to the horizontal plane and transverse to said axis producing adjacent elongated concave and convex light reflecting surfaces which project light in a generally vertically confined beam and wherein said recesses are defined by a plurality of end-to-end elliptical shaped depressions.
Claim 2
Dependent Claim 100 words
A reflector for a light fixture comprising, in combination, a substantially parabolic reflecting shell having an inner concave light reflecting surface having a longitudinal axis adapted to be obliquely disposed to a horizontal plane during use and a plurality of adjacent elongated ridges and recesses defined in said shell inner surface having their length generally vertically oriented with respect to the horizontal plane and transverse to said axis producing adjacent elongated concave and convex light reflecting surfaces which project light in a generally vertically confined beam and wherein said recesses are defined by a plurality of end-to-end elliptical shaped depressions.
Claim 3
Dependent Claim 20 words
In a reflector as in claim 1 wherein said ridges and recesses are of a generally elongated narrow elliptical configuration.
Claim 4
Dependent Claim 28 words
In a reflector as in claim 2 wherein said ridges and recesses are defined by peening and are approximately 1/8" each in width and approximately 3/4" in length.
Claim 5
Dependent Claim 25 words
In a reflector as in claim 3, wherein said ridges and recesses are defined by peening using the side of a 5/16" diameter cylindrical tool.
Claim 6
Dependent Claim 123 words
A reflector for a light fixture characterized by its ability to evenly illuminate an area comprising, in combination, a substantially parabolic reflecting shell having an inner concave light-reflecting surface having a longitudinal axis adapted to be obliquely disposed to a horizontal plane during use, said shell in its operational orientation including an upper region, lateral regions and a lower region, and a plurality of adjacent elongated ridges and recesses defined in said lower region having their length generally vertically oriented with respect to the horizontal plane and transverse to said axis producing adjacent elongated concave and convex light reflecting surfaces which project light in a generally vertically confined beam and wherein said recesses are defined by a plurality of end-to-end elliptical shaped depressions.
Claim 7
Dependent Claim 123 words
A reflector for a light fixture characterized by its ability to evenly illuminate an area comprising, in combination, a substantially parabolic reflecting shell having an inner concave light-reflecting surface having a longitudinal axis adapted to be obliquely disposed to a horizontal plane during use, said shell in its operational orientation including an upper region, lateral regions and a lower region, and a plurality of adjacent elongated ridges and recesses defined in said lower region having their length generally vertically oriented with respect to the horizontal plane and transverse to said axis producing adjacent elongated concave and convex light reflecting surfaces which project light in a generally vertically confined beam and wherein said recesses are defined by a plurality of end-to-end elliptical shaped depressions.
Claim 8
Dependent Claim 20 words
In a reflector as in claim 5 wherein said ridges and recesses are of a generally elongated narrow elliptical configuration.
Claim 9
Dependent Claim 28 words
In a reflector as in claim 5 wherein said ridges and recesses are defined by peening and are approximately 1/8" each in width and approximately 3/4" in length.
Claim 10
Dependent Claim 33 words
In a reflector as in claim 5, a plurality of adjacent concave depressions defined in said shell lateral regions, said depressions being of a generally elliptical configuration having a length defined by ends.
Claim 11
Dependent Claim 28 words
In a reflector as in claim 8, said depressions being arranged in rows concentric to said shell axis and adjacent depressions being in a substantially contiguous end-to-end relationship.
Claim 12
Dependent Claim 32 words
In a reflector as in claim 5, a plurality of conical concentric light reflecting surfaces defined on said shell upper region of a configuration to reflect light with a minimum of diffusion.
Claim 13
Dependent Claim 20 words
In a reflector as in claim 10, said conical concentric light reflecting surfaces each being of a conical segment configuration.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-09-04 1993-03-06 1993-09-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-09-04 1997-03-06 1997-09-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-09-04 2001-03-06 2001-09-05 $7700.00 Window Closed / Lapsed

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