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.

Date of Patent:
May. 27, 2014

Filed:

Nov. 25, 2010
Applicants:

Fumio Hirai, Tochigi, JP;

Osami Ito, Tochigi, JP;

Hiroyuki Yamada, Tochigi, JP;

Hiroshi Ichikawa, Tochigi, JP;

Hidetaka Hokazono, Tochigi, JP;

Tomohiko Yamamoto, Singburi, TH;

Kosuke Murai, Singburi, TH;

Inventors:

Fumio Hirai, Tochigi, JP;

Osami Ito, Tochigi, JP;

Hiroyuki Yamada, Tochigi, JP;

Hiroshi Ichikawa, Tochigi, JP;

Hidetaka Hokazono, Tochigi, JP;

Tomohiko Yamamoto, Singburi, TH;

Kosuke Murai, Singburi, TH;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C 9/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

An evaporative pattern casting process includes forming a mold by burying a pattern made of resin foam in casting sand, pouring molten metal into the mold, and evaporating the pattern with the molten metal and thereby casting a product. In the evaporative pattern casting process, casting time during founding is set according to a modulus (pattern volume÷pattern surface area) of the pattern. Accordingly, the casting time in the evaporative pattern casting process is accurately set with high precision.


Find Patent Forward Citations

Loading…