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:
Feb. 24, 1987
Filed:
Apr. 08, 1985
Richard M Hanula, Lyndhurst, OH (US);
Fred C Kulieke, Jr, Tallmadge, OH (US);
National Castings, Inc., Cicero, IL (US);
Abstract
A railway car coupler knuckle includes integral nose, hub, and tail portions. The tail portion has a lock shelf and an associated locking face as well as pulling lugs associated therewith. A tail core support aperture in the tail portion communicates with internal tail portion coring extending from a free end of the tail portion toward coring in the hub portion. The core support aperture and tail portion coring have been strategically relocated and reconfigured to reduce stresses imposed at critical areas during loading of the knuckle pulling lugs and locking face to thereby increase the resistance of the tail portion to fatigue failures.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile