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:
Sep. 06, 2011
Filed:
May. 30, 2006
Minoru Hirata, Toyokawa, JP;
Takayuki Komiyama, Toyokawa, JP;
Minoru Hirata, Toyokawa, JP;
Takayuki Komiyama, Toyokawa, JP;
Sintokogio, Ltd., Aichi, JP;
Abstract
A flaskless molding apparatus for an upper and a lower mold that can produce molds comprised of molding sand with a substantially uniform density. The apparatus includes a match plate having patterns held between a cope flask and a drag flask, a squeezing mechanism having a plurality of upper and lower segmented-squeeze feet, wherein the upper and the lower segmented-squeeze feet are insertable into openings of each of the cope flask and the drag flask respectively, which openings are opposite to the match plate, and wherein the squeezing mechanism can support and rotate the cope flask and the drag flask so that the mechanism allows the cope flask and the drag flask to be rotated clockwise or counterclockwise in a perpendicular plane about a supporting shaft and so that the cope flask and the drag flask can be positioned perpendicular or horizontal, and a device for moving the segmented-squeeze feet, wherein the device can control positions of the upper and the lower segmented-squeeze feet, which positions determine the condition of the molding sand in the molding spaces, according to intervals between the match plate and each of the upper and the lower segmented-squeeze feet opposite to the match plate.