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:
Apr. 07, 1981
Filed:
May. 24, 1979
Applicant:
Inventor:
Kiyoyuki Arai, Tokyo, JP;
Assignee:
Copal Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
400121 ; 101 9304 ; 400124 ;
Abstract
The device for driving dot printing bars in a dot printer comprises a recording paper holding and feeding platen, dot printing bars reciprocally movable between an inoperative position and an operative position, a common rotary friction roller normally held in a predetermined spaced relationship to the bars and adapted to be engaged by the bars when the bars effect dot printing, electromagnetic devices associated with the bars to cause the bars to strike against a recording paper to effect dot printing on the paper and a control circuit operating the electromagnetic devices.