The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 1977
Filed:
Nov. 18, 1975
Frank S Barthel, North Syracuse, NY (US);
Crouse-Hinds Company, Syracuse, NY (US);
Abstract
A luminaire for providing uniform illumination of a horizontal or vertical plane surface is provided with a reflector having three distinct contours to provide optimum distribution of light flux. The first section is cylindrical and extends from 117.degree. to 180.degree. from nadir. The second section is a general contour curve extending from 180.degree. to 270.degree. from nadir and is used to redirect flux in the zone from nadir to 65.degree.. The third section is a general contour curve extending from 270.degree. to 355.degree. from nadir and redirects the flux in the zone from 50.degree. to 65.degree. from nadir. The general contour curves in sections 2 and 3 are defined by fourth degree polynominal equations.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile