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. 14, 1996
Filed:
Apr. 18, 1995
Owe G Larsson, Hoganas, SE;
AGA Aktiebolag, Lidingo, SE;
Abstract
Method for tempering a molding tool intended for production of products of natural or synthetic polymers, which molding tool includes one or more molding parts (3, 4) made of sintered metal with communicating pores obtained by pressing at a high pressure and sintering at a high temperature of a powdered material, in which molding part or parts (3, 4) a molding cavity (9) has then been made, whereby preferably the outer envelope surface of the molding tool is tight. The method comprises tightly connecting one or more channels, capillary tubes (6, 8) or the like through the tight outer envelope surface to the mould material of the molding tool situated inside, which material contains a large number of small communicating pores and feeding a gas having a suitable state and a suitable temperature through the channels thereby causing a rapid tempering of the molding tool to a desired extent.