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:
Dec. 04, 2001
Filed:
May. 11, 2000
Applicant:
Inventors:
Tom Stanley, Vancouver, CA;
Paul Valastin, North Vancouver, CA;
Assignee:
Vae Nortrak North America Inc., Cheyenne, WY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E01B 1/100 ;
U.S. Cl.
CPC ...
E01B 1/100 ;
Abstract
A compromise rail is formed of a single length of stock rail. One end of the rail is forged over a distance of 19-48 inches to reduce the height of the forged portion, which is then machined to match the running rail to which that end is to be attached. The invention avoids the expense and inconvenience of flash butt welding a forged section to a uniform profile rail as is done in prior art compromise rails.