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:
May. 28, 1991
Filed:
Aug. 31, 1982
Applicant:
Inventors:
Charles M McCray, Charlotte, NC (US);
Brandon S Nadler, Charlotte, NC (US);
David M Sedgwick, Charlotte, NC (US);
David M Traxler, Charlotte, NC (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
4006161 ; 400902 ;
Abstract
Printers and copiers have paper handling mechanisms that incorporate form feeding tractors to move a continuous form or web having edge holes. It has been discovered that the web can be driven at a high acceleration yet uses a small number of pins by setting the pin pitch of the tractor greater than the pitch of the edge holes.