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:
Apr. 29, 2014
Filed:
Aug. 17, 2007
Robert E. Gunst, Neosho, WI (US);
Thomas P. Adams, Oconomowoc, WI (US);
Jason R. Parpart, Whitewater, WI (US);
Myron W. Spoehr, Lake Mills, WI (US);
Robert E. Gunst, Neosho, WI (US);
Thomas P. Adams, Oconomowoc, WI (US);
Jason R. Parpart, Whitewater, WI (US);
Myron W. Spoehr, Lake Mills, WI (US);
Talaris, Inc., Watertown, WI (US);
Abstract
A method and system for prevention of dust accumulation on a coin sensor assembly () in a coin handling machine (), includes a lower optical element () positioned below a coin track () and then either, or both of, 1) blowing off dust that tends to accumulate on the cover () for the lower optical element () and 2) coating the cover () for the lower optical element () with a transparent conductive coating () that is electrically grounded to prevent accumulation of dust due to static electrical attraction. A fan unit () is positioned adjacent the cover () for blowing dust off the cover () during operation of the coin handling machine (). The method and system is preferably a optical reflector system with an upper optical element in the form of a reflector () and a transparent conductive coating of material () is also provided on the reflector ().