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:
Oct. 17, 1995
Filed:
Jul. 25, 1994
Applicant:
Inventor:
Jatal D Mannapperuma, Davis, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
21032183 ; 210487 ;
Abstract
An improved spiral membrane and module for cross flow filtration where several of the membrane envelopes are wavelike or corrugated in structure to allow unobstructed flow of the feed to reduce the feed path fouling when used to filter feed containing particulate matter.