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:
Mar. 02, 2010
Filed:
Mar. 31, 2008
David M. Madore, Vancouver, WA (US);
David M. Madore, Vancouver, WA (US);
USDigital LLC, Vancouver, WA (US);
Abstract
An annular having a central bore includes a conical surface concentric with the bore such that the conical surface has a peak, an inner trough and an outer lip and the inner trough is adjacent to the central bore. A retention groove located under the outer lip has an outside diameter that is less than the lip outside diameter. A tapered reflective face extends outward from the retention groove. When a code wheel disc having an inside diameter that is smaller than said lip outside diameter is pressed onto the conical surface, the difference in size of the lip outside diameter and the disc inside diameter promotes a deflection of the disc which forces it to conform to the tapered reflective surface.