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:
May. 11, 2004
Filed:
Apr. 02, 2002
Applicant:
Inventors:
Matthew J. Hansen, Minneapolis, MN (US);
John A. Bushey, Eden Prairie, MN (US);
Michael F. Nemeth, Brooklyn Park, MN (US);
Assignee:
MTS Systems Corporation, Eden Prairie, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 2/012 ;
U.S. Cl.
CPC ...
B23K 2/012 ;
Abstract
A friction stir welding spindle includes a support having a center bore. A spindle shaft is adapted to support a stir welding tool and extends within the bore. A bearing assembly allows simultaneous rotational and axial displacement of spindle shaft in the bore relative to the support. A sensing device is adapted to provide an output signal indicative of at least one of a force coincident with axial displacement of the spindle shaft and an axial position of the spindle shaft.