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:
Dec. 05, 1989
Filed:
Dec. 09, 1987
Applicant:
Inventor:
John F Berquist, Atascadero, CA (US);
Assignee:
Cognitive Solutions, Inc., Atascadero, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
400120 ; 346 / ; 219216 ;
Abstract
A thermal printhead fixed to a pivotal supporting frame is held in operative printing contact with a web of printing medium backed by a platen roller under the bias of a spring device engageable with the pivotal supporting frame for the printhead. The spring device is operatively located relative to the platen roller so that the spring bias exerted establishes proper frictional feeding engagement between the web and the roller which is power driven. The spring device, the pivotal supporting frame for the printhead and the platen roller are mounted by a common housing section.