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:
Nov. 28, 1978
Filed:
Nov. 28, 1977
Applicant:
Inventors:
John K Stewart, Lexington, SC (US);
Helmuth VON Beckmann, Columbia, SC (US);
Assignee:
Canron Corp., West Columbia, SC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E01B / ;
U.S. Cl.
CPC ...
104 / ; 33 / ; 104-8 ;
Abstract
The invention provides for a stop device positioned on a railroad track shifting machine such as a track lifting and/or tamping machine and a sensor for generating a control signal to terminate or control the shifting action of the machine when the shifting force on the rail exceeds a predetermined value.