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. 17, 1997
Filed:
Dec. 20, 1994
Applicant:
Inventors:
Michael S Didion, St. Charles, MO (US);
Charles J Didion, St. Charles, MO (US);
Assignee:
Didion Manufacturing Company, St. Peters, MO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D / ; B22D / ; F16B / ;
U.S. Cl.
CPC ...
164404 ; 164131 ; 164269 ; 403375 ; 403345 ;
Abstract
A casting shake-out unit has an outer cylinder and an inner cylinder. The inner cylinder is made of a plurality of interfitting segments which interlock and cooperate with each other to prevent a segment from falling out of the completed inner cylinder. Each segment includes tongues extending from opposing edges of the segment's body and pockets formed in the body. The pockets of one segment receive at least a part of the tongue of a neighboring segment.