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. 31, 1994
Filed:
Nov. 20, 1992
D Michael Bocinski, Binghamton, NY (US);
Craig A Kaufman, Apalachin, NY (US);
Randy J Kisacky, Johnson City, NY (US);
Barton H Kunz, Owego, NY (US);
Lawrence A Stone, Cary, NC (US);
Jerry Z Raski, Endicott, NY (US);
David B Schaefer, Apalachin, NY (US);
Douglas A Schmidt, Owego, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An impact printer has a print band moving longitudinally around pulleys with one side of the band moving in contact along a rigid platen and the other side having engraved characters presented along a print line of a print medium (e.g. paper and ink ribbon). The leading edge of platen is squared off (e.g. sharp) to scrape contamination off the band. A row of hammers impact the print medium against the band between the hammers and an impact surface of the platen. The impact surface of the platen contains multiple longitudinal grooves which start slightly back from the leading edge of the platen and which prevent increased friction force between the band and platen from occurring as the band wears the platen impact surface smooth.