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. 26, 1978
Filed:
Mar. 21, 1977
Applicant:
Inventor:
Raymond R Lund, West Columbia, SC (US);
Assignee:
Canron, Inc., New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E01B / ;
U.S. Cl.
CPC ...
104 / ; 33 / ; 104 / ;
Abstract
A reference mechanism for a spike driving machine is disclosed. The spike driving machine has a hole sensing device followed by a spike setter and drive head all of which sweep along a rail tie in a direction parallel to the rail. When the sensing device senses a hole it signals to the reference mechanism which references the hole to the setter and drive head which are following. The sweep continues until the setter and drive head are located over the hole at which point the sweep is stopped by the reference mechanism.