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:
Jul. 28, 1987
Filed:
Oct. 03, 1985
Applicant:
Inventors:
David L Bernhardt, Canton, MI (US);
Neno T Nenov, Williamsville, NY (US);
Assignee:
Nu Con Corporation, Livonia, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22C / ;
U.S. Cl.
CPC ...
164 34 ; 164 35 ; 164 44 ; 164 45 ; 264226 ; 264227 ;
Abstract
An investment casting process employs a low-cost plastic pattern manufactured by machining. A mold is cast around the plastic pattern following which the pattern is removed from the mold to leave a mold cavity which molten metal or the like may be poured to produce a finished part. Reusable plastic patterns may be formed by casing silastic rubber. The silastic rubber patterns may be mechanically separated from the mold without damaging the pattern.