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:
Nov. 29, 1977
Filed:
Jan. 11, 1977
Applicant:
Inventors:
Carl R Nelson, Derby, KS (US);
David R Pierce, Wichita, KS (US);
Noel F Depew, Wichita, KS (US);
Marlyn F Harp, Winfield, KS (US);
Assignee:
NCR Corporation, Dayton, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
197 / ; 101 9305 ;
Abstract
In a matrix print head, a plurality of elongated printing elements, mounted in a frame, are driven axially by electromagnetic means to effect printing on record media positioned adjacent to the printing ends of the printing elements. Freely riding tubular elements are placed on the printing elements between support members forming part of the frame, in order to dampen the bending and vibration of the printing elements, and thus reduce or eliminate consequent fatigue failure.