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. 18, 1994
Filed:
Oct. 13, 1992
Applicant:
Inventor:
Seong S Cho, Daejeon, KR;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F / ; E04B / ;
U.S. Cl.
CPC ...
419 23 ; 419 32 ; 75249 ; 252 62 ;
Abstract
Multi-layer, porous material and process of manufacturing same produced from aluminum scrap powder by means of a centrifugal atomizer for use in noise absorbing devices and filter elements. The multi-layers are arranged according to increasing particle size so that a first layer contains the largest particle size and a last layer contains the smallest particle size. Arranging the layer sin this manner produces a multilayer porous material having a shell configuration of a conch which effectively absorbs noise.
Cho, Seong. (1994). Aluminum powder prepared from scrap aluminum and multi-layer, porous (U.S. Patent No. 5279786). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5279786
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile