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:
Mar. 22, 1988
Filed:
Oct. 29, 1985
Applicant:
Inventor:
Markus Burgin, Monchaltorf, CH;
Assignee:
Franz Buttner AG, Egg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
400208 ; 400234 ; 4002351 ; 400636 ; 400641 ; 226181 ;
Abstract
An improved drive mechanism for an ink ribbon cassette for advancing an ink ribbon particularly well suited for use in a typewriter is provided. The drive mechanism includes a drive roller rotatably supported in the casing with a free floating pressure ring supported by a roller. The pressure ring is supported against the roller and against the drive roller so that there is an increase in pressure with an increase in the tension of the ribbon.