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:
Jun. 08, 1976
Filed:
Apr. 30, 1975
Applicant:
Inventors:
Charles C Frost, Grand Rapids, MI (US);
Douglas J Van Der Meulen, Shelbyville, MI (US);
Siegfried K Weis, Grand Rapids, MI (US);
Assignee:
C. L. Frost & Son, Inc., Grand Rapids, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21K / ; B21K / ;
U.S. Cl.
CPC ...
2915 / ;
Abstract
Two identical shaped discs stamped in a die and joined together back-to-back to form a hub, web and belt-riding groove. The hub formed is an annular cup-shaped pocket in which a closely fitted bushing is received. The discs are formed from a blank in a compound progressive die in a single die station and are stamped with a locus of simultaneously coined surfaces to provide positive tolerance control of radial run-out and lateral run-out (wobble) when the discs are joined together.