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:
Mar. 31, 1992
Filed:
Mar. 26, 1990
Robert W Langerak, Burlington, CA;
Paul B Koehler, Burlington, CA;
Zenon Environmental Inc., Burlington, CA;
Abstract
A tubular membrane module for example for use in ultrafiltration has a tubular shell made of standard PVC pipe and moulded PVC end fittings. A series of membrane tubes within the shell extend between coupling members at both ends. The coupling members fit closely inside the shell and end fittings and are secured in place using epoxy adhesive. A transverse wall in each coupling member is provided with sockets which receive the ends of the tubes and in which the tubes are secured by a similar adhesive. Each socket has a blind end that receives the end portion of the tube so that the tube is protected from shear effects due to fluid entering the tube under pressure in use.