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. 11, 1993
Filed:
Jun. 18, 1990
Applicant:
Inventors:
Assignee:
Citizen Watch Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
400124 ; 101 9305 ;
Abstract
A print head for a dot matrix printer has a plurality of print needles slidably mounted in the head, a plurality of armatures operatively connected to the print needles, a plurality of electromagnets for respectively operating the armatures, a center ring for stopping the armature attracted by the electromagnet, and a residual sheet mounted on a core of each of the electromagnets for preventing the armature from sticking to the core.