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:
Jan. 25, 1983
Filed:
Nov. 28, 1980
Applicant:
Inventors:
Cosmo J Cianciolo, Wolcott, CT (US);
John R Snyder, Oakville, CT (US);
Roderick V King, Girard, PA (US);
Assignee:
Ethyl Products Company, Richmond, VA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B21C / ; B24B / ;
U.S. Cl.
CPC ...
72 75 ; 72126 ; 72299 ; 29 9 / ;
Abstract
A metal cap or closure having a smooth, rounded edge. The smooth, rounded edge is formed by contacting the rough edge of the cap or closure with a plurality of moving metal spheres. The apparatus for forming the smooth, rounded edge includes a plate in which the spheres are rotatably mounted and a holder for holding the closure over the spheres so that the edge of the closure contacts the rotating spheres.