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:
Feb. 01, 2000
Filed:
Apr. 07, 1999
Vincent C Adams, Buffalo Grove, IL (US);
Jeffrey R Kaufman, Waukegan, IL (US);
Dan E Monnier, Arlington Heights, IL (US);
Michael K Platt, Mt. Prospect, IL (US);
David L Poole, Libertyville, IL (US);
David A West, Streamwood, IL (US);
David S Zubriski, Addison, IL (US);
Thomas P Zwier, Buffalo Grove, IL (US);
Daniel F Donato, Mundelein, IL (US);
James W Ensinger, Palatine, IL (US);
William J Hamman, Justice, IL (US);
Kenneth V Naegele, Vernon Hills, IL (US);
Zebra Technologies Corporation, Vernon Hills, IL (US);
Abstract
A demand printer for printing on media includes a ribbon take-up spindle for accumulating spent printing ribbon and facilitating removal of the spent ribbon from the spindle. The spindle has a surface with a protrusion bore formed therethrough. At least one protruding segment extends through the protrusion bore. The protruding segment controllably projects away from the spindle surface for maintaining a space between a portion of the spindle surface and the spent ribbon accumulated on the spindle. A biasing structure is operatively associated with the spindle and the protruding segment for controllably biasedly directing the protruding segment through the protrusion bore in the spindle. A retracting structure is provided for controllably compressing and expanding the biasing means to controllably move the protruding segment through the protrusion bore.