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. 07, 2011
Filed:
May. 18, 2006
Paxton C. Augustine, Kalamazoo, MI (US);
Mike G. Parran, Portage, MI (US);
Paxton C. Augustine, Kalamazoo, MI (US);
Mike G. Parran, Portage, MI (US);
Parker-Hannifin Corporation, Cleveland, OH (US);
Abstract
A system and method for controlling a piston-cylinder assembly of a welding apparatus, the piston-cylinder assembly including a plurality of pressure chambers, wherein the piston-cylinder assembly is operatively coupled to at least one welding electrode of the welding apparatus so as to effect movement of the electrode in a pre-stroke and weld motion, comprises: connecting to a first port of the piston-cylinder assembly a first fluid pressure, the first port in communication with a first pressure chamber so as to effect the pre-stroke motion of the electrode; and connecting to a second port of the piston-cylinder assembly a second fluid pressure, the second port in communication with a second pressure chamber so as to effect the weld stroke motion of the electrode, wherein the second fluid pressure is different from the first fluid pressure.