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:
Aug. 02, 1977
Filed:
Oct. 30, 1974
Applicant:
Inventors:
Assignee:
Sumitomo Electric Industries, Ltd., Itami, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B22F / ; B01D / ;
U.S. Cl.
CPC ...
427183 ; 427189 ; 427190 ; 427195 ; 427231 ; 427234 ; 427238 ; 427240 ; 427241 ; 427346 ; 427243 ; 427247 ; 264111 ; 264112 ; 264114 ; 264 69 ; 55158 ; 294205 ;
Abstract
A method for producing a tubular multi-layered porous barrier comprising the step of depositing fine powder onto at least one of the inner and outer surfaces of a sintered tubular porous support member in a layer of uniform thickness to form a fine powder layer and pressurizing said powder layer against said support member to form a porous barrier layer on the support member.