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. 22, 2001
Filed:
Dec. 04, 1999
Michael E. Flader, Chicago, IL (US);
Anish A. Desai, Hoffman Estates, IL (US);
Jacob E. Steele, Chicago, IL (US);
Stephen M. Bednarz, DeKalb, IL (US);
Avery Dennison Corporation, Pasadena, CA (US);
Abstract
A snowplowable pavement marker includes a frame member having primary spaced keel members with ramp surfaces which have upwardly inclined contours beginning at a forward end portion of each keel member and extending at a first acute angle, then transitioning to a second portion having a second acute angle which is greater than the first angle. Further, the frame member includes an auxiliary keel member having ramp surfaces disposed between the primary keel members and having the same contour as the primary ramp surfaces. The auxiliary keel member ramp surfaces extend inwardly of the frame member to a point proximate the marker's reflector and serve to prevent damage by a snowplow blade set at a wide angle to the direction of blade travel. Advantageously, the contour of ramp surfaces permits a higher frame member installation above the pavement and allows for greater exposure of the reflector.