Patent · US Expired

Securing means for the leakproof mounting of a semi-permeable membrane to a support plate

US4346004A · kind A · utility

5Cited by
1References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 11, 1980
Grant dateAug 24, 1982
Priority date
Expiry dateDec 11, 2000

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01D63/084
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A device is provided for the leaktight securing of semi-permeable membranes to opposite faces and around each orifice of a membrane support plate of a separatory apparatus which separates by selective permeability. Said device comprises two stamped metal rings which maintain sealing pressure on the membranes against the support plate and are attached to one another in a leaktight fashion by means of a sealing means situated between them. A separatory apparatus comprising support plates fitted with the above device is also provided.

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