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:
May. 06, 2003
Filed:
Nov. 16, 2000
Iwao Nohara, Nakatsugawa, JP;
Tomio Nakajima, Nakatsugawa, JP;
Kiyotaka Ida, Nakatsugawa, JP;
Masahiko Sameshima, Settsu, JP;
Yoshiyuki Kobayashi, Nara, JP;
Kenji Yamaguchi, Osaka, JP;
Other;
Abstract
The present invention is constituted such that chambers and , independent from cavity , are formed at the rear side of a set of dies and for molding a molded foam product, first openings and opening to the cavity are formed along the joint of the dies and as a molding section of the dies and , which is to mold a non-outstanding portion of the molded foam product, wherein the first openings and are connected to the external utility pipes as different systems for the chambers and , via inter-die passages and and internal pipes and , which are connecting passages, so as to supply or exhaust such utility fluid as steam and compressed air to/from the cavity independently from the chambers and . Vent holes, which are indispensable for dies of conventional molded foam products, are omitted so that the manufacturing cost of the dies is decreased, maintenance for the dies is simplified, control accuracy of utility fluid is improved, characteristics of the molded foam products are improved, and quality of the molded foam products is also improved.