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:
Jun. 18, 1985
Filed:
Apr. 04, 1983
Applicant:
Inventors:
Peter H Wolf, Thousand Oaks, CA (US);
Thomas A Dobson, Canoga Park, CA (US);
Rafael Rozo, Canoga Park, CA (US);
Assignee:
Dataproducts Corporation, Woodland Hills, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23P / ; B23K / ; B41J / ;
U.S. Cl.
CPC ...
219 / ; 7610 / ; 101 9348 ; 219 / ; 219 / ; 2191 / ;
Abstract
The impact pins of a matrix printhead are brazed by a laser to a print hammer of the flat spring type. The print hammers are then attached to a printhead mounting block adjacent to each other with the impact pins in substantially a straight line. The attached print hammers are then shaped by an electric discharge machining (EDM) process by a single electrode to simultaneously machine the impact pins to the desired shape and to position the tips of the impact pins at a precise distance with respect to one another.