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:
Jul. 02, 1996
Filed:
Sep. 26, 1994
Robert E Scofield, Pewaukee, WI (US);
Allen-Bradley Company, Inc., Milwaukee, WI (US);
Abstract
A bar code reader including a dynamic damper for an oscillating mirror assembly is disclosed herein. The reader includes a frame which supports a light source for producing scanning light, and a transducer for receiving scanning light reflected from a bar code being read by the reader. The light produced by the light source is scanned over the bar code by an oscillator assembly including a carrier defining a rotational axis, a light reflector fastened to the carrier, and a spring assembly fastened to the carrier and the frame to resiliently support the carrier for oscillation about the rotational axis. A damper fastened to the frame and slidably engaged with the carrier is provided to inhibit oscillation of the carrier perpendicular to the rotational axis. Such undesirable oscillation is typically caused by forces external to the scanner such as jarring of a structure supporting the scanner.