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:
Sep. 01, 1981
Filed:
Feb. 12, 1979
Richard J Auchinleck, Norristown, PA (US);
Peripheral Dynamics, Inc., Norristown, PA (US);
Abstract
A reader for reading encoded data on cards, badges and the like, which cards and badges can be of differing thicknesses, having specially adapted drive roller pairs each comprising a drive roller of a first durometer and a pinch roller of a second durometer, arranged to efficiently capture the badge or card and apply a positive drive force to it. The drive roller is fixed in position and of a relatively high durometer, while the pinch roller is at contact with the drive roller in the absence of a transported card or badge, but is adapted to be displaced against a spring force to accommodate the thickness of the badge or card being read. The efficiency of capture is a function of the relative durometers of the two respective rollers of the drive roller/pinch roller pair, as well as the degree of spring force provided on the pinch roller.