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. 03, 2005
Filed:
Aug. 20, 2001
Applicants:
Robert V. Norby, Munster, IN (US);
René A. Hunziker, Flossmoor, IL (US);
Inventors:
Robert V. Norby, Munster, IN (US);
René A. Hunziker, Flossmoor, IL (US);
Assignee:
Holland Corporation, Crete, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E01B011/44 ; B23K009/00 ;
U.S. Cl.
CPC ...
Abstract
A flash butt rail welding welderhead combines in a single unit, the ability for the three functions of rail pulling, flash butt forging and maintaining the 'after forged' displacement without any change in platen position such that shearing may be accomplished in three stages, a single stage, multiple stages or a progressive stage, all while maintaining clamping and stretching force on the rails.