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:
Jan. 04, 2022
Filed:
Aug. 22, 2018
Applicant:
Schaeffler Technologies Ag & Co. KG, Herzogenaurach, DE;
Inventors:
Assignee:
Schaeffler Technologies AG & CO. KG, Herzogenaurach, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B21K 1/18 (2006.01);
U.S. Cl.
CPC ...
B21K 1/18 (2013.01); B21K 1/185 (2013.01);
Abstract
A method of producing a piston blank, comprising producing an intermediate blank of a piston for an axial piston machine by extrusion wherein the intermediate blank includes a shaft portion, a ball head portion, and a sealing portion, wherein the shaft portion connects the ball head portion to the sealing portion. The method also includes producing a piston blank of the piston from the intermediate blank and machining a through-opening in the intermediate blank, wherein the through-opening extends within the piston blank in the longitudinal direction.