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. 29, 1992
Filed:
Apr. 16, 1991
Applicant:
Inventors:
Jose M Martins Leites, Sao Paulo, BR;
Jose A Cardosomendes, Sao Paulo, BR;
Andre Lippai, Sao Paulo, BR;
Paulo T Dellanoce, Sao Caetano Do Sul, BR;
Assignee:
Metal Leve S/A Industria E Comercio, Sao Paulo, BR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
2988804 ; 29888042 ; 92216 ;
Abstract
A method to manufacture an articulated piston head wherein the two portions composing the head, i.e. the top portion and the pin boss portion, are formed separately from blanks of forged or cast chromium-molybdenum steel or a low alloy steel, subjected to preliminary machining operations, joined together by friction welding and then machined to final dimensions.