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:
Nov. 10, 1987
Filed:
Dec. 08, 1986
Marc R Bussan, Knights Township, Vanderburgh County, IN (US);
Sylvester A Winternheimer, Center Township, Vanderburgh County, IN (US);
Whirlpool Corporation, Benton Harbor, MI (US);
Abstract
An acrylic lightpipe transmits light from the lamp compartment of a refrigerator to the inner surface of an indexed control dial for backlighting. The lightpipe is supported within the refrigerator by a bracket positioned in proximity to the dial to be illuminated. Integral extensions formed on the light pipe are gripped by the bracket to prevent the lightpipe from rotating or translating with respect to the dial. The lightpipe is cantilevered by the bracket to backlight only a selected portion of the dial. The light emitting end face of the lightpipe is planar and angled to form an obtuse angle with the axis of the pipe to efficiently illuminate the dial.