FR2191442A7 - Filter membrane support in solid PTFE - for use in single plate filter esp. for sterile pharmaceutical analysis - Google Patents
Filter membrane support in solid PTFE - for use in single plate filter esp. for sterile pharmaceutical analysisInfo
- Publication number
- FR2191442A7 FR2191442A7 FR7238864A FR7238864A FR2191442A7 FR 2191442 A7 FR2191442 A7 FR 2191442A7 FR 7238864 A FR7238864 A FR 7238864A FR 7238864 A FR7238864 A FR 7238864A FR 2191442 A7 FR2191442 A7 FR 2191442A7
- Authority
- FR
- France
- Prior art keywords
- plate
- ptfe
- filter
- single plate
- filter membrane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000004810 polytetrafluoroethylene Substances 0.000 title abstract 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 title abstract 4
- 239000012528 membrane Substances 0.000 title abstract 2
- 238000005220 pharmaceutical analysis Methods 0.000 title 1
- 239000007787 solid Substances 0.000 title 1
- 239000002184 metal Substances 0.000 abstract 3
- 239000000706 filtrate Substances 0.000 abstract 2
- -1 are obviated Substances 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/08—Flat membrane modules
- B01D63/087—Single membrane modules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/05—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
A filter membrane, in a single plate filter, is held by a perforated metal plate, against a circular plate wholly of PTFE, comprising upper rounded concentric ridges intersecting lower radial rounded ridges so that resultant gaps permit flow of filtrate. The ensemble is sandwiched between a top external metal plate, (with a central inlet and an air-bleed outlet off centre), and a bottom external plate with a peripheral collection channel sloping down to a side outlet for filtrate. Detachment problems, encountered with PTFE coated metal, are obviated, and PTFE plate provides its own seal.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2501372A IT961542B (en) | 1972-05-29 | 1972-05-29 | PRESSURE MEMBRANE FILTERING DEVICE |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2191442A7 true FR2191442A7 (en) | 1974-02-01 |
Family
ID=11215405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7238864A Expired FR2191442A7 (en) | 1972-05-29 | 1972-10-27 | Filter membrane support in solid PTFE - for use in single plate filter esp. for sterile pharmaceutical analysis |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2191442A7 (en) |
IT (1) | IT961542B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0021301A2 (en) * | 1979-06-22 | 1981-01-07 | Biotest-Serum-Institut GmbH | Device for continuous plasma pherese |
EP0160643A1 (en) * | 1982-06-10 | 1985-11-13 | Gordon D Oberg | Oil filter assembly having a removable filter member. |
US4717472A (en) * | 1982-06-10 | 1988-01-05 | Oberg Enterprises, Inc. | Oil filter assembly having multiple removable filter members and cooling fins |
EP0325712A1 (en) * | 1988-01-22 | 1989-08-02 | Schleicher & Schuell GmbH | Disposable filter with a double supporting grid |
-
1972
- 1972-05-29 IT IT2501372A patent/IT961542B/en active
- 1972-10-27 FR FR7238864A patent/FR2191442A7/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0021301A2 (en) * | 1979-06-22 | 1981-01-07 | Biotest-Serum-Institut GmbH | Device for continuous plasma pherese |
EP0021301A3 (en) * | 1979-06-22 | 1981-03-18 | Biotest-Serum-Institut GmbH | Device for continuous plasma pherese |
EP0160643A1 (en) * | 1982-06-10 | 1985-11-13 | Gordon D Oberg | Oil filter assembly having a removable filter member. |
EP0160643A4 (en) * | 1982-06-10 | 1987-03-12 | Gordon D Oberg | Oil filter assembly having a removable filter member. |
US4717472A (en) * | 1982-06-10 | 1988-01-05 | Oberg Enterprises, Inc. | Oil filter assembly having multiple removable filter members and cooling fins |
EP0325712A1 (en) * | 1988-01-22 | 1989-08-02 | Schleicher & Schuell GmbH | Disposable filter with a double supporting grid |
Also Published As
Publication number | Publication date |
---|---|
IT961542B (en) | 1973-12-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |