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:
Aug. 13, 1996
Filed:
Feb. 06, 1995
Applicant:
Inventors:
Stephen R Kuhn, Richton Park, IL (US);
Keith Young, Naperville, IL (US);
Assignee:
ABC Rail Products Corporation, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B61L / ;
U.S. Cl.
CPC ...
246276 ; 246468 ;
Abstract
An improved railroad trackwork frog is provided with a relatively fixed rigid wing rail, a relatively movable spring wing rail, a base plate, and at least one roller outrigger and ramp plate assembly which is attached to the spring wing rail and to the base plate, and which functions to cause limited upwards vertical movement of the spring wing rail relative to the base plate when the spring wing rail is moved laterally relative to the rigid wing rail by the engaged wheel flange of a passing rail car.