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:
Apr. 07, 1987
Filed:
Oct. 15, 1984
Applicant:
Inventors:
Jonathan W Hinton, E. Amherst, NY (US);
Donald S Pratt, Birmingham, MI (US);
Edward J Gehart, Washington, MI (US);
Assignee:
Champion Spark Plug Company, Toledo, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B28B / ;
U.S. Cl.
CPC ...
264314 ; 264318 ; 425127 ; 4254 / ; 425D / ; 445-7 ;
Abstract
A method of and apparatus for forming a pressed body (54) with a bore (56) therein and with a notch (58) in the exterior surface thereof. The body (54) is formed by isostatically pressing particulate material (52) in an elastic mold (14) so that the material (52) is compacted into a self-supporting mass. Used in conjunction with the elastic mold is a mold closure and core holder member (32) to which is fixed a rigid core (42) and a resilient notch defining bar (44).