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:
Jan. 11, 2000
Filed:
Mar. 10, 1998
Yoshimi Iwamoto, Tokyo, JP;
Kiyohisa Kitagawa, Tokyo, JP;
Kazuhiro Kurihara, Tokyo, JP;
Masahiro Hirao, Tokyo, JP;
Mitsui Wood Systems, Inc., , JP;
Abstract
A method of compression-molding a slurry of a hydraulic inorganic material such as cement or slag, a light-weight aggregate, a reinforced fiber material and other filler material kneaded with water so as to manufacture an inorganic molded product. The slurry is put into a molding frame having a filtering cloth placed over the bottom surface thereof and is then compression-molded in the molding frame by using a molding die while it is suction-dehydrated from on both sides of the molding die surface and the filtering cloth surface. The molding die has a number of vent holes for sucking-dehydration each of which vent holes comprises a small-diameter hole and a large-diameter hole continuous therewith.