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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.:

US 11007566 B1

PDFFull Text
Expired
Date of Patent:
May. 18, 2021

Filed:

Aug. 19, 2015

Casting green sand mold, and method for producing cast article using it

Applicant:

Hitachi Metals, Ltd., Tokyo, JP;

Inventor:

Kentaro Fukumoto, Miyako-gun, JP;

Assignee:

HITACHI METALS, LTD., Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Kevin E Yoon

Assistant Examiner:

Jacky Yuen

Int. Cl.
CPC ...
B22C 3/00 (2006.01); B22C 9/02 (2006.01); B22C 9/12 (2006.01); B22C 1/16 (2006.01); B22C 1/18 (2006.01); B22C 1/26 (2006.01); B22D 23/00 (2006.01); C09D 161/06 (2006.01); C22C 38/00 (2006.01); C22C 38/34 (2006.01); C22C 38/44 (2006.01); C22C 38/58 (2006.01);
U.S. Cl.
CPC ...
B22C 9/02 (2013.01); B22C 1/167 (2013.01); B22C 1/181 (2013.01); B22C 1/26 (2013.01); B22C 3/00 (2013.01); B22C 9/12 (2013.01); B22D 23/00 (2013.01); C09D 161/06 (2013.01); C22C 38/002 (2013.01); C22C 38/34 (2013.01); C22C 38/44 (2013.01); C22C 38/58 (2013.01);
Abstract

A casting green sand mold comprising at least a pair of green sand mold parts each having a cavity portion, which are stacked with their cavity portions aligned to form a metal-melt-receiving cavity; each of the green sand mold parts being formed by casting sand containing a binder and water; a hardening-resin-based coating layer being formed on at least the cavity portion of each green sand mold part; the coating layer having gas-permeable pores having sufficient permeability to permit a gas generated by pouring a metal melt to escape; and a water content in a surface layer including the coating layer in a range from the cavity surface to the depth of 5 mm being smaller than that in the inner portion of the green sand mold.

Find Patent Forward Citations

Fukumoto, Kentaro. (2021). Casting green sand mold, and method for producing cast article using it (U.S. Patent No. 11007566). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11007566

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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