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:
Aug. 30, 1977
Filed:
May. 28, 1976
Applicant:
Inventors:
Satoshi Watanabe, Inagi, JA;
Atsuo Tsunoda, Fuchu, JA;
Takeshi Kimura, Chichibu, JA;
Hitoshi Narita, Chichibu, JA;
Assignees:
Canon Kabushiki Kaisha, Tokyo, JA;
Canon Denshi Kabushiki Kaisha, BOTH OF, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
29592 ; 29418 ; 101 9329 ; 264274 ; 264275 ;
Abstract
A printing hammer unit is produced by forming a group of hammers having hammer portions secured to resilient members of electrically conductive material connected together by connecting portions and also forming a base integrally secured to the resilient members at locations thereof spaced apart from the hammer portions, and by removing at least a part of the connecting portions to break the electrical connection between at least one of the resilient members secured to the hammer portions and the other resilient members.