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. 02, 1982
Filed:
Jul. 03, 1980
James G Hume, Hayward, CA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An improved ribbon cartridge for use in impact printers, typewriters or the like, in which inked ribbon upon a supply spool and a take-up spool are enclosed within a housing with the center of each spool being supported for rotation and for floating movement along its own guide path. A guide capstan having a fixed center is also located within the housing. The supply spool is mounted upon a torsion arm for movement in an arcuate path and is urged toward and against the take-up spool which itself is constrained to move in a straight line between the takeup spool and the fixed center drive capstan. When the capstan is rotated by an external drive, it rotates the take-up spool in order to wind the inked ribbon thereupon while simultaneously unwinding ribbon from the supply spool.