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:
May. 27, 1980
Filed:
Dec. 20, 1978
Applicant:
Inventor:
Roland E Cale, Cortland, OH (US);
Assignee:
Schaefer Equipment Incorporated, Warren, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21K / ;
U.S. Cl.
CPC ...
72356 ; 72371 ; 2917 / ;
Abstract
Metal stock is forged into a blank consisting of a rod-like shank joined at one end to the inner ends of a pair of substantially parallel forks having enlarged flattened outer ends projecting laterally away from each other in a common plane and provided with pin-receiving openings with parallel axes. The forging operation provides each fork with the appearance of a 90.degree. twist. After the blank is formed the forks are twisted on their axes in directions that will substantially eliminate their twisted appearance and will turn their enlarged ends into spaced parallel planes with their pin-receiving openings in axial alignment.