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. 16, 1976
Filed:
Mar. 14, 1975
Applicant:
Inventors:
Richard W Rhyins, Ridgefield, CT (US);
Ralph Rand, New Milford, CT (US);
Matthew J Costello, Bethel, CT (US);
Robert E Krallinger, New Milford, CT (US);
Assignee:
Graphic Sciences, Inc., Canbury, CT (US);
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
250216 ; 178-76 ; 250235 ;
Abstract
A folded retro-reflective optical scanner using common major optics for both scanning and reading and achieving a long scan line (8.25 inches) with a short throw distance and little bow. Astigmatic effects in the reading beam are minimized by utilizing only the center portion of the return beam for reading.