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. 07, 1978
Filed:
Jul. 13, 1977
Frank W Oshinsky, McKeesport, PA (US);
McConway & Torley Corporation, Pittsburgh, PA (US);
Abstract
The drag pattern for a standard AAR coupler is modified to increase the thickness of the bottom wall of a coupler casting forwardly and rearwardly of a plane containing the horn line. The increased thickness is achieved by forming a substantially planar bottom wall surface for a distance of at least two inches at either side of a plane containing the horn line. Head and shank pattern parts are interchangeable and releasably secured onto a pattern plate for molding foundry sand in the drag portion of a foundry mold to produce E, E/F and F-types of coupler castings.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile