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:
Sep. 21, 1982
Filed:
Sep. 25, 1980
Richard M Hanula, Lyndhurst, OH (US);
Fred C Kulieke, Jr, Tallmadge, OH (US);
Midland-Ross Corporation, Cleveland, OH (US);
Abstract
A rotary F coupler is described as having an improved pinhole design, wherein the backwall of the pinhole has a generally cylindrical, rectangularly shaped pin bearing surface which projects into the pinhole about three-quarters of an inch, compared to the conventional projection or crown of one-quarter of an inch, and in such a way as to prevent unduly high stress concentrations in the coupler shank caused by contact of the shank and pivot pin during vertical angling of the coupler.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile