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. 20, 2002
Filed:
Sep. 14, 2000
Rohit Sharma, Cypress, CA (US);
Printronix, Inc., Irvine, CA (US);
Abstract
A method of forming a printer tip on a metal printer hammer spring by providing a printer tip from a range of materials from the group consisting of sintered tungsten carbide, cemented tungsten carbide, composite ceramics, metallic materials, noble metals, metal carbides, borides, nitrides and alloys and mixtures thereof. The printer tip is pressed against the hammerspring while electrically softening the printer hammerspring through a voltage established by an electrode contacting the printer tip. A plating or coating of the printer tip beforehand can be undertaken with a conductive metallic material disposed on the surface of the printer tip. The printer tip is fused to the hammerspring and a milling of a desired form to the printer tip and hammerspring by an electrode discharge milling process can take place thereafter.