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. 09, 1995
Filed:
Sep. 21, 1993
Applicant:
Inventor:
John J Grey, Berea, OH (US);
Assignee:
Barnes Group, Inc., Bristol, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B / ; F16B / ; F16B / ; E01B / ;
U.S. Cl.
CPC ...
411366 ; 411287 ; 411386 ; 411424 ; 411903 ; 238262 ;
Abstract
An improved railroad frog bolt-nut assembly is disclosed. The bolt has a square head and a shank. The shank has an unthreaded portion adjacent the head and a threaded portion at its terminal end. The threaded portion is rolled to a diameter equal to the shank's unthreaded portion to produce high fastener strength. A unitary lock nut is formed with an annular boss extending from it's outside end in which indentations intersecting with some of the nut threads are pressed to provide an interference, locking fit with the bolt threads.