Patent · US Expired

Module for rigid cylindrical membrane elements for separation, filtration, or catalytic transformation

US4956087A · kind A · utility

2Cited by
1References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 7, 1989
Grant dateSep 11, 1990
Priority date
Expiry dateJul 7, 2009

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01D2313/06
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A module (1) for rigid cylinder membrane elements (2) for separation, filtration, or catalytic transformation, the elements (2) being received in a vessel which is generally cylindrical and parallel thereto, and closed by a first end plate (4) and a second end plate (5) to which the ends of the elements (2) are fixed by means of seals (6,7). The end plates are interconnected by at least one spacer constituted by at least three juxtaposed oblong parts (10, 20, 30) made of materials selected for reducing the expansion differences that would otherwise occur on a change in the temperature of the vessel and its membrane elements.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.