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. 05, 2000
Filed:
Aug. 06, 1998
Intermetallics Co., Ltd., Kyoto, JP;
Abstract
A method for packing a material includes air tapping material contained in a feeding hopper to pack it into a container which is to be filled with the material, and separating the material in the feeding hopper and the container into a portion of the material packed in the container where the material has a uniform density and a portion which is the material remaining in the feeding hopper. The air tapping process includes subjecting the space that is supplied with the material to be packed to air pressure which is switched alternately from a low pressure state to a high pressure state and back to a low pressure state or from a high pressure state to a low pressure state and then back to a high pressure state, in either case causing the material to be packed to a high density. The portion of the material remaining in the feeding hopper is separated from the portion of the material packed in the container where the material has a uniform density by a grid provided in the opening of the feeding hopper located toward the container. The container into which the material is packed may be the cavity of a die used in the die pressing of compacts, such as a rubber mold used in cold isostatic pressing.