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:
Sep. 20, 1988
Filed:
Sep. 25, 1985
Applicant:
Inventors:
Aram S Arzoumanian, Woodland Hills, CA (US);
Calvin E Moeller, Woodland Hills, CA (US);
Kam C Wong, Canoga Park, CA (US);
Assignee:
Dataproducts Corporation, Woodland Hills, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
101 9304 ; 400121 ; 4001572 ; 101 9329 ; 148 165 ; 335274 ;
Abstract
An elongated unitary spring armature is disclosed for use in dot matrix printers. The spring armature has an elongated triangular shape with attachment means located adjacent to the base and means for securing the impact tip located adjacent to the apex. A spring portion formed of a high carbon steel is located adjacent to the attachment means and an armature portion formed of a low carbon steel separates the spring portion from the apex. Processes for making the spring armature are also disclosed.