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:
Nov. 01, 1994
Filed:
Mar. 24, 1994
Applicant:
Inventor:
Hidenobu Miyajima, Shizuoka, JP;
Assignee:
Asahi Tec Corporation, Shizuoka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C / ; B22C / ; B22D / ;
U.S. Cl.
CPC ...
164 45 ; 164 34 ; 164 98 ; 264 454 ; 264221 ; 264317 ;
Abstract
A film-like molded body having a hollow portion of a predetermined contour and made from a disappearing material is formed first using a mold. Also, a disappearing model is prepared by dividing it into a plurality of disappearing model elements. Then, the disappearing model elements are placed so as to enclose the film-like molded body with the film-like molded body as a core and are bonded together and fixed using an adhesive. Accordingly, the disappearing model can be prepared easily while preventing the adhesive from being forced out into the disappearing model and dispensing with extraction of the film-like molded body.