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. 25, 2008
Filed:
Nov. 24, 2004
Nicole L. Sullivan, Elgin, IL (US);
Curtis L. Steward, Jr., Sandwich, IL (US);
Rick Pecore, Manitowoc, WI (US);
James D. Borowski, Appleton, WI (US);
James Todd Olejniczak, Appleton, WI (US);
John Masters, Tully, NY (US);
Nicole L. Sullivan, Elgin, IL (US);
Curtis L. Steward, Jr., Sandwich, IL (US);
Rick Pecore, Manitowoc, WI (US);
James D. Borowski, Appleton, WI (US);
James Todd Olejniczak, Appleton, WI (US);
John Masters, Tully, NY (US);
DENTSPLY International, Inc., York, PA (US);
Abstract
A light control system and method for a film viewer (). The viewer () includes an infrared emitter () with an infrared detector () in communication with a microprocessor (). When a radiograph () is inserted within the film viewer (), the radiograph () is interposed between the emitter () and detector (). The microprocessor () detects a change in the emissions sensed by the detector () and illuminates the viewer (). The invention also provides a film holder () that includes a plurality of rollers () interposed between the holder () and the screen ().