Street Light Technical Information Willis Lamm   STREET LIGHTS: Patents from 1975 Through 1979

Patents are an effective way to understand the development of street lighting in the United States. In this section I have posted patents as I located them. (Early patents are difficult to locate as they were not cross-indexed.) All patents are listed in order of their filing dates. Click on the patent number or thumbnail to view the entire patent.

In the second half of the 1970s there was continued development of full cutoff designs, although more efficient post mount luminaires were still being designed.

Patent No. 4007365 Filing date: April 5, 1975 Patent date: February 8, 1977 Title: Lighting Fixture with Tiltable Reflector Elements Inventor: Hans Stempfle and Werner Rothe Assignee: Siemens Aktiengesellschaft Claims: Adjustable reflector to focus full-cutoff box luminaires.
Patent No. 4028542 Filing date: April 16, 1975 Patent date: June 7, 1977 Title: Faceted Parabolic-Type Reflector System Inventor: Glenn Harold McReynolds, Jr. Assignee: Esquire, Inc. Claims: Parabolic reflector design for full-cutoff box luminaires.
Patent No. 4010362 Filing date: December 4, 1975 Patent date: March 1, 1977 Title: Luminaire Shield Device Inventor: Thomas A. Fletcher Assignee: General Electric Co. Claims: Shield device to prevent birds from entering cobrahead luminaire.
Patent No. 4041306 Filing date: December 15, 1975 Patent date: August 9, 1977 Title: Luminaire and Reflector Therefor Inventor: Wayne W. Compton and Robert Paul Draper Assignee: Kim Lighting, Inc. Claims: Full cutoff box type luminaire.
Patent No. 4053766 Filing date: December 23, 1975 Patent date: October 11, 1977 Title: Lamp Lens Structure Inventor: John R. Brass Assignee: US Industries, Inc. Claims: Full cutoff lens for box luminaire.
Patent No. 4096555 Filing date: October 28, 1976 Patent date: June 20, 1978 Title: Lighting fixtures Inventor: Martin L. Lasker Assignee: Wylain, Inc. Claims: Conical reflectors for glare-free box luminaire.
Patent No. 4261028 (France patent date: October 7, 1977) Filing date: September 21, 1978 Patent date: April 7, 1981 Title: Luminaires Inventor: Marie H. H. Adam Claims: Cutoff type luminaire designed for pedestrian crosswalk illumination.
Patent No. 4160286 Filing date: July 18, 1977 Patent date: July 3, 1979 Title: Luminaire Shield Inventor: William H. Merritt Assignee: Plastics Engineering and Manufacturing Co. Claims: Plastic bowl type vandal shield for cobrahead luminaires.
Patent No. 4112483 Filing date: December 5, 1977 Patent date: September 5, 1978 Title: Lighting Fixture and Method Using Multiple Reflections Inventor: Edward A. Small and Ian Lewin Assignee: Optical Coating Laboratory, Inc. Claims: Multiple reflector system for focused non-glare luminaire.
Patent No. 4261029 Filing date: February 5, 1979 Patent date: April 7, 1981 Title: Lighting Device with Rotatable Reflector Inventor: Noel Mousset Assignee: Holophane, S.A. Claims: Adjustable reflector for producing an assymetrical light pattern.
Patent No. 4242727 Filing date: March 29, 1979 Patent date: December 30, 1980 Title: Luminaire Reflector Inventor: Hendrik A. J. DeVos and Elzear R. Labouliere Assignee: Optical Coating Laboratory, Inc. Claims: Segmented reflector that produces a square light pattern.

Continue to 1980-1984

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Please note: This index is a work in progress. If you notice an error or are aware of something that is missing, please feel free to Email me. Thanks!