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:
Nov. 17, 1981
Filed:
Sep. 11, 1980
Applicant:
Inventors:
Duilio Setti, Lexington, MA (US);
Peter M Balbo, Londonderry, NH (US);
Assignee:
Abcor, Inc., Wilmington, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
210637 ; 210652 ; 210137 ; 2104332 ; 210450 ;
Abstract
A membrane apparatus, which apparatus comprises a housing and a spiral membrane module positioned in the housing to define an annular clearance space between the outside wall of the spiral membrane module and the interior wall surface of the housing, and an open-mesh type or netting material peripherally surrounding the spiral membrane module and positioned in the annular clearance space in a partial sealing relationship, to provide a controlled by-pass of the feed stream through the open-mesh-type material in the annular clearance space, to prevent accumulation of feed material in the annular space.