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. 04, 2002
Filed:
Apr. 25, 2000
Applicant:
Inventors:
Robert D. Steenis, Kaukauna, WI (US);
David J. Lease, Appleton, WI (US);
Assignee:
Illinois Tool Works Inc., Glenview, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 9/18 ;
U.S. Cl.
CPC ...
B23K 9/18 ;
Abstract
A welding apparatus for submerged arc welding is disclosed. The welding apparatus includes a welding power supply and a wire feeder in electrical communication with the power supply. A torch is in electrical communication with the power supply and is adapted to deliver an electrode wire from the wire feeder to an arc. A flux system having a flow path for delivering flux to the arc includes a pinch valve disposed to open and close the flow path.