Prismatic light transmitting panel

- K-S-H, Inc.
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Description

FIG. 1 is a bottom perspective view of a prismatic light transmitting panel showing my new design, it being understood that the prismatic mattern partially shown in the upper right hand corner is uniformly continuous over the bottom surface of the lens;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a fragmentary bottom plan view thereof on an enlarged scale;

FIG. 5 is a fragmentary left edge elevational view thereof on a greatly enlarged scale, all edges of the panel having the same configuration;

FIG. 6 is a cross-sectional view thereof on a greatly enlarged scale as taken along line 6--6 of FIG. 4.

FIG. 7 is a fragmentary view in perspective thereof on an enlarged scale.

The panel is fragmentarily shown in FIGS. 4 and 5 for convenience of illustration.

Referenced Cited
U.S. Patent Documents
D173157 October 1954 Hurley
D184722 March 1959 Franck et al.
D201822 August 1965 Meyer
D223386 April 1972 Stahlhut
2242872 May 1941 Rolph
2859334 November 1953 Guth
3019334 January 1962 Lipscomb
3038065 June 1962 Franck et al.
3093323 June 1963 Guth
3150833 September 1964 Franck et al.
3474317 June 1949 McPhail
3578967 May 1971 Stahlhut et al.
3624388 November 1971 Schwartz et al.
3760178 September 1973 Miller
4064433 December 20, 1977 Korn
4332005 May 25, 1982 McCall
Foreign Patent Documents
62517 1955 FRX
Other references
  • K-11 Lighting panel brochure, .COPYRGT.1963. KSH-18 Lighting panel brochure, .COPYRGT.1970. "KHS-12 Lens" (brochure), K-S-H Inc., .COPYRGT.1974.
Patent History
Patent number: D314638
Type: Grant
Filed: May 12, 1988
Date of Patent: Feb 12, 1991
Assignee: K-S-H, Inc. (St. Louis, MO)
Inventor: David M. Kelley (St. Louis, MO)
Primary Examiner: Susan J. Lucas
Law Firm: Polster, Polster and Lucchesi
Application Number: 7/192,894