Patent US3832830A successfully refreshed from Google Patents.
US3832830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permeation separation device
Assignee: EIDP Inc
•
Filing: 1972-09-18
•
Granted: 1974-09-03
•
Expires: 1992-09-18
Abstract
Abstract An improved selective permeation separation device comprising 1. A BUNDLE OF AT LEAST ONE MILLION, PREFERABLY, AT LEAST FIVE MILLION, LONGITUDINAL HOLLOW FILAMENT MEMBRANES WHICH AT LEAST AT ONE END ARE IMBEDDED IN AND EXTEND THROUGH A CAST RESIN TUBE SHEET CHARACTERIZED AS HAVING A WICKED PORTION EXTENDING ALONG THE HOLLOW FILAMENT MEMBRANES IN THE BUNDLE, 2. A SHELL SURROUNDING THE BUNDLE AND PROVIDING AN ANNULAR SPACE FOR FLUID AROUND THE BUNDLE AND SEALED THERETO IN A FLUID-TIGHT RELATIONSHIP AT EACH END HAVING A CAST RESIN TUBE SHEET, 3. MEANS FOR INTRODUCING A FLUID MIXTURE INTO THE DEVICE SO AS TO PRODUCE A PERMEATE PORTION PASSING THROUGH THE WALLS OF THE HOLLOW FILAMENT MEMBRANES AND A NON-PERMEATE PORTION WHICH DOES NOT PASS THROUGH THE WALLS OF THE HOLLOW FILAMENT MEMBRANES, 4. MEANS FOR REMOVING THE NON-PERMEATE PORTION OF THE FLUID MIXTURE FROM THE DEVICE, 5. MEANS FOR REMOVING THE PERMEATE PORTION OF THE FLUID MIXTURE FROM THE DEVICE, AND AS THE IMPROVEMENT, 6. AT EACH END OF THE BUNDLE HAVING A CAST RESIN TUBE SHEET AN ELASTIC RESTRAINING ELEMENT, UNDER ELASTIC TENSION, SURROUNDING THE BUNDLE OF FIBERS, EXTENDING FROM WITHIN THE CAST RESIN TUBE SHEET ALONG THE BUNDLE BEYOND THE WICKED PORTION OF THE TUBE SHEET, AND RESTRAINING AND IMMOBILIZING THE PORTIONS OF THE FIBERS WHICH ARE WITHIN THE CONFINES THEREOF INTO AN INFLEXIBLE BUNDLE.
Inventors
- 👤 J Gerow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:30
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/22; B01D63/00; B01D63/02; B01D63/021; B01D63/022; B01D63/0222
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
218 words
An improved selective permeation separation device comprising 1. a bundle of at least one million longitudinal hollow filament membRanes which at each end are imbedded in and extend through a cast resin tube sheet characterized as having a wicked portion extending along the hollow filament membranes in the bundle, 2. a shell surrounding the bundle and providing an annular space for fluid around the bundle and sealed thereto in a fluid-tight relationship at each end having a cast resin tube sheet, 3. means for introducing a fluid mixture into the device so as to produce a permeate portion passing through the walls of the hollow filament membranes and a non-permeate portion which does not pass through the walls of the hollow filament membranes, 4. means for removing the non-permeate portion of the fluid mixture from the device, 5. means for removing the permeate portion of the fluid mixture from the device, and as the improvement, 6. at each end of the bundle having a cast resin tube sheet an elastic restraining element, under elastic tension, surrounding the bundle of fibers, extending from within the cast resin tube sheet along the bundle beyond the wicked portion of the tube sheet, and restraining and immobilizing the portions of the fibers which are within the confines thereof into an inflexible bundle.
Claim 2
Dependent Claim
218 words
An improved selective permeation separation device comprising 1. a bundle of at least one million longitudinal hollow filament membRanes which at each end are imbedded in and extend through a cast resin tube sheet characterized as having a wicked portion extending along the hollow filament membranes in the bundle, 2. a shell surrounding the bundle and providing an annular space for fluid around the bundle and sealed thereto in a fluid-tight relationship at each end having a cast resin tube sheet, 3. means for introducing a fluid mixture into the device so as to produce a permeate portion passing through the walls of the hollow filament membranes and a non-permeate portion which does not pass through the walls of the hollow filament membranes, 4. means for removing the non-permeate portion of the fluid mixture from the device, 5. means for removing the permeate portion of the fluid mixture from the device, and as the improvement, 6. at each end of the bundle having a cast resin tube sheet an elastic restraining element, under elastic tension, surrounding the bundle of fibers, extending from within the cast resin tube sheet along the bundle beyond the wicked portion of the tube sheet, and restraining and immobilizing the portions of the fibers which are within the confines thereof into an inflexible bundle.
Claim 3
Dependent Claim
31 words
a shell surrounding the bundle and providing an annular space for fluid around the bundle and sealed thereto in a fluid-tight relationship at each end having a cast resin tube sheet,
Claim 4
Dependent Claim
31 words
a shell surrounding the bundle and providing an annular space for fluid around the bundle and sealed thereto in a fluid-tight relationship at each end having a cast resin tube sheet,
Claim 5
Dependent Claim
24 words
The improved device of claim 1 wherein the hollow filament membranes are poly(ethylene terephthalate) membranes and the elastic restraining elements are of poly(ethylene terephthalate).
Claim 6
Dependent Claim
22 words
The improved device of claim 2 wherein the elastic restraining elements are comprised of wrappings of woven tape made from warp yarns.
Claim 7
Dependent Claim
41 words
means for introducing a fluid mixture into the device so as to produce a permeate portion passing through the walls of the hollow filament membranes and a non-permeate portion which does not pass through the walls of the hollow filament membranes,
Claim 8
Dependent Claim
41 words
means for introducing a fluid mixture into the device so as to produce a permeate portion passing through the walls of the hollow filament membranes and a non-permeate portion which does not pass through the walls of the hollow filament membranes,
Claim 9
Dependent Claim
18 words
The improved device of claim 1 wherein the bundle contains at least five million longitudinal hollow filament membranes.
Claim 10
Dependent Claim
13 words
means for removing the non-permeate portion of the fluid mixture from the device,
Claim 11
Dependent Claim
13 words
means for removing the non-permeate portion of the fluid mixture from the device,
Claim 12
Dependent Claim
17 words
means for removing the permeate portion of the fluid mixture from the device, and as the improvement,
Claim 13
Dependent Claim
17 words
means for removing the permeate portion of the fluid mixture from the device, and as the improvement,
Claim 14
Dependent Claim
20 words
The improved device of claim 1 which is double ended and adapted for bore side feed of the fluid mixture.
Claim 15
Dependent Claim
14 words
The improved device of claim 5 which is employed in a gas separation process.
Claim 16
Dependent Claim
62 words
at each end of the bundle having a cast resin tube sheet an elastic restraining element, under elastic tension, surrounding the bundle of fibers, extending from within the cast resin tube sheet along the bundle beyond the wicked portion of the tube sheet, and restraining and immobilizing the portions of the fibers which are within the confines thereof into an inflexible bundle.
Claim 17
Dependent Claim
62 words
at each end of the bundle having a cast resin tube sheet an elastic restraining element, under elastic tension, surrounding the bundle of fibers, extending from within the cast resin tube sheet along the bundle beyond the wicked portion of the tube sheet, and restraining and immobilizing the portions of the fibers which are within the confines thereof into an inflexible bundle.
References Cited (Backward Citations)
US3339341A
Cited
US3616928A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |