Patent · US Expired

Filter membrane support and filtration funnel

US5112488A · kind A · utility

16Cited by
1References
24Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 17, 1991
Grant dateMay 12, 1992
Priority date
Expiry dateJun 17, 2011

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01D2201/24
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

The instant invention provides a support apparatus for a filter membrane which comprises a central porous support section and a peripheral support section, said central porous support section adapted to support a central portion of a filter membrane and said peripheral support section adapted to support a peripheral portion of a filter membrane, a base support for said central support section and said peripheral support section, and means to separate said central porous support section from said peripheral support action thereby to separate said peripheral portion of said filter membrane from said peripheral support section.

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