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:
Apr. 01, 1986
Filed:
Jun. 29, 1984
Applicant:
Inventor:
Andrew M Dieringer, Waterford, WI (US);
Assignee:
Rexnord Inc., Brookfield, WI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E01B / ;
U.S. Cl.
CPC ...
104 / ; 104-2 ;
Abstract
A spike-driving machine for use in driving spikes into railroad ties and including a rail clamping apparatus for securing the machine to the rails while spikes are being driven into the rails. The rail clamping apparatus can employ only a single hydraulic cylinder and is constructed so as to firmly grip the rails even if the heads of the rails are substantially worn and also constructed so as to grip a variety of different sizes of rails whether or not those rails are new rails or substantially worn.