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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.:

US 5114581 B1

PDFFull Text
Date of Patent:
May. 19, 1992

Filed:

Jan. 10, 1991

Back-flushable filtration device and method of forming and using same

Applicant:
Inventors:

Robert L Goldsmith, Belmont, MA (US);

Bruce A Bishop, Cambridge, MA (US);

Assignee:

CeraMem Corporation, Waltham, MA (US);

Attorney:

Crowley; Richard P.

Primary Examiner:

Robert A Dawson

Assistant Examiner:

Ana Furtuna

Int. Cl.
CPC ...
B01D / ; B01D / ; B01D / ;
U.S. Cl.
CPC ...
210650 ; 210653 ; 210108 ; 21032175 ; 21050027 ; 210506 ; 2105101 ; 55 16 ; 55523 ; 264 60 ;
Abstract

A back-flushable filtration device is provided. The device includes a monolith of porous material having an inlet end and an outlet end. The passageways of the monolith are plugged at the inlet and outlet ends of the monolith, thereby preventing direct passage of feed stock through the passageways from the inlet end to the outlet end. A microporous membrane of mean pore size smaller than the mean pore size of the monolith material covers the surface of the passageways. Methods for making the back-flushable filter as well as methods for using the back-flushable filter also are provided.

Find Patent Forward Citations

Goldsmith, Robert. (1992). Back-flushable filtration device and method of forming and using same (U.S. Patent No. 5114581). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5114581

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