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:
Dec. 20, 1977
Filed:
Mar. 25, 1977
Reuben Paul Benton, North Tonawanda, NY (US);
Kenneth D Schreyer, Clarence, NY (US);
Columbus McKinnon Corporation, Tonawanda, NY (US);
Abstract
There is disclosed an improved coupling device or 'link' for interconnecting separate lengths of chain and/or attachments thereto and/or for repairing broken chains and method of producing same; said coupling link comprising two half-link units each of which comprises a laminar assembly of two or more relatively nested and interfittingly configured strap-like members. These members are stamped out in generally U-shaped plan form from sheet or plate stock; the legs thereof then being twisted while the intermediate bow-shaped portions of the members remain flat-wise in the planes of the original stampings. Such half-link units may then be assembled and fabricated from only a minimized number (one or two) of differently configured strap-like members disposed in laminate relationship. The bow-shaped portions of the members of each sub-assembly are then structurally integrated as by a welding process or the equivalent; and the terminal ends of the legs thereof (which are apertured) are then interdigitally mounted upon a common interconnecting pin.