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. 17, 1983
Filed:
Feb. 09, 1981
Kenneth L Trammell, Campbell, CA (US);
Arthur C Van Horne, Lake Oswego, OR (US);
Data Products Corporation, Woodland Hills, CA (US);
Abstract
An improved ribbon shield for use with a ribbon cassette in a printer. The shield snaps into the front of a ribbon cassette so as to cover an exposed portion of ribbon and prevent the smudging or wicking of ink onto a printing medium. The ribbon shield includes an elongated strip of flexible material such as polypropylene having a central aperture to enable the ribbon to pass through it for printing purposes. The shield includes a lower curved lead-in portion to accommodate paper motion past the cassette. The shield is held within the ribbon cassette in a flexible state. The flexed portion of the shield contacts the printing medium and forces it into close contact with the platen. Improved performance can be obtained by providing spacing ridges in the form of rings which surround the aperture.