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. 26, 2019
Filed:
Feb. 22, 2017
Applicant:
Jac Operations, Inc., Chicago, IL (US);
Inventor:
Anand R. Vithani, Addison, IL (US);
Assignee:
JAC OPERATIONS, INC., Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
B61G 7/00 (2006.01); B61G 3/04 (2006.01);
U.S. Cl.
CPC ...
B61G 7/00 (2013.01); B61G 3/04 (2013.01);
Abstract
A railroad coupler knuckler meets AAR contour requirements and it includes unique external weight reducing features that strategically reduce weight without compromising strength or fatigue life. The design of the railroad knuckle of the present invention allows for formation of the knuckle through forging or coreless casting techniques and thus allows for the use of a better grade of steel compared to AAR Grade E and such forged or cast knuckle will yield much higher fatigue life compared to cast knuckles.