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:
Dec. 26, 2000
Filed:
Oct. 26, 1999
Hiroshi Tada, Osaka, JP;
Osamu Matsui, Osaka, JP;
Kabushikikaisha Matsui Seisakusho, Osaka, JP;
Abstract
A vacuum-type automatic dehumidifying and drying apparatus for powdered or granular material such as a pelletized or powdered resin or the like, provided with a drying hopper connected to an evacuating means having at its bottom a material discharge valve, and provided with a material collector communicating with the drying hopper via a material feeding valve above the drying hopper for collecting the powdered material therein. The apparatus comprises a double constructed drying hopper having a cylindrical main body made of a high heat conductivity material provided on its inner peripheral surface with plural fins, which define compartment walls, projecting inwardly and provided on its outer peripheral surface with a heating means surrounding the cylindrical main body. The main body is outwardly enclosed with a heat insulation wall, and comprises an outer air inlet for introducing outer air thereinto, a material sensor for detecting amount of the material stored in the hopper, and an evacuating means connected to the main body.