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:
Jan. 12, 1993
Filed:
Oct. 10, 1991
Applicant:
Inventors:
James M Seybold, Centerville, OH (US);
Phillip B Daley, Cincinnati, OH (US);
Assignee:
NCR Corporation, Dayton, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
4001961 ; 400207 ;
Abstract
A ribbon cassette has a first tension spring located at an exit port of a cavity of the cassette and a second tension spring located at one corner of the cassette which provides a correct tautness of the ribbon as it travels past the line of printing. The cassette also has a ribbon shield which is positioned relative to printing elements to maintain the ribbon in a straight plane along the line of printing.