Patent US3854904A successfully refreshed from Google Patents.
US3854904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for separating fluids
Assignee: Rhone Poulenc SA
•
Filing: 1973-11-23
•
Granted: 1974-12-17
•
Expires: 1993-11-23
Abstract
Abstract Apparatus for circulating fluids, especially useful in gas permeation, in which a plurality of rings are stacked one on top of the other in a cylindrical jacket which is closed at each end with an end plate, one of which may be removable. Porous discs are located between each adjacent ring, in recesses formed therein, and each face of each disc is covered with a membrane. Fluid flows into the chambers formed between adjacent discs, and within each ring. For this purpose each ring is provided with a first passage communicating between one end face of the ring and the internal annular face of the ring, the second passage communicating between the internal annular face of the ring and the other end face, the second passage opening onto the internal face at a point generally opposite to the point at which the first passage opens thereonto, the first passage of each ring communicating with the second passage of the adjacent ring. The ring at one end of the stack has its first passage communicating with a supply duct, and the ring at the other end of the stack has its second passage communicating with the outlet duct of the apparatus, discharge channels being provided to let the permeate passing through the membranes escape from the lateral edge of each disc.
Inventors
- 👤 B Jamet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:44
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/22; B01D2313/00; B01D2313/04; B01D2313/041; B01D2313/08; B01D2313/086
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
268 words
Apparatus for separating fluids, such apparatus comprising, in combination: a. a jacket; b. two end walls, at least one of which is removable, defining with said jacket a chamber; c. a stack of rings positioned within said chamber, said rings each having end faces abutting the end face of at least one adjacent ring in the stack and an internal annular face; d. means defining a recess in at least one end face of a pair of abutting rings adjacent the annular face; e. porous discs Positioned in said recesses, whereby a compartment is defined within each ring by the annular wall and two adjacent porous discs; f. a membrane lining opposite faces of each disc; g. a first passage in each ring providing communication between one end face of the ring and the internal annular face of the ring; h. a second passage in each ring, providing communication between the other end face of the ring and the internal annular face of the ring, the second passage opening onto the internal face at a point generally opposite to the point at which the first passage opens thereonto, the first passage of each ring communicating with the second passage of the adjacent ring; i. a fluid inlet duct in one end wall communicating with the first passage of the ring at the adjacent end of the stack; j. a fluid outlet duct in the other end wall communicating with the second passage of the ring at the other end of the stack; and k. means for removing fluid which has passed through the membranes into each porous disc.
Claim 2
Dependent Claim
268 words
Apparatus for separating fluids, such apparatus comprising, in combination: a. a jacket; b. two end walls, at least one of which is removable, defining with said jacket a chamber; c. a stack of rings positioned within said chamber, said rings each having end faces abutting the end face of at least one adjacent ring in the stack and an internal annular face; d. means defining a recess in at least one end face of a pair of abutting rings adjacent the annular face; e. porous discs Positioned in said recesses, whereby a compartment is defined within each ring by the annular wall and two adjacent porous discs; f. a membrane lining opposite faces of each disc; g. a first passage in each ring providing communication between one end face of the ring and the internal annular face of the ring; h. a second passage in each ring, providing communication between the other end face of the ring and the internal annular face of the ring, the second passage opening onto the internal face at a point generally opposite to the point at which the first passage opens thereonto, the first passage of each ring communicating with the second passage of the adjacent ring; i. a fluid inlet duct in one end wall communicating with the first passage of the ring at the adjacent end of the stack; j. a fluid outlet duct in the other end wall communicating with the second passage of the ring at the other end of the stack; and k. means for removing fluid which has passed through the membranes into each porous disc.
Claim 3
Dependent Claim
18 words
Apparatus as claimed in claim 1, wherein said chamber is substantially cylindrical, and said rings are each circular.
Claim 4
Dependent Claim
59 words
Apparatus as claimed in claim 1, wherein the means for removing fluid which has passed through the membranes into each porous disc, comprise means defining at least one groove in at least one of the abutting faces of adjacent rings, said groove communicating with the exterior walls of said rings and with the recess between the two adjacent rings.
Claim 5
Dependent Claim
56 words
Apparatus as claimed in claim 3, wherein the exterior wall of each ring contacts the internal wall of the jacket, and further comprising means defining channels extending generally parallel to the stacking axis of the ring between the exterior wall of the rings and the internal wall of the jacket, said grooves communicating with said channels.
Claim 6
Dependent Claim
43 words
Apparatus as claimed in claim 1, wherein each of said first and second passages comprises an axial passage communicating with an end face of the ring, and a radial channel connected to the axial passage and to the annular wall of the ring.
Claim 7
Dependent Claim
26 words
Apparatus according to claim 5, and further comprising a gasket concentric with each of said axial passages, said gaskets ensuring a leakproof communication between adjacent rings.
Claim 8
Dependent Claim
27 words
Apparatus according to claim 6, and further comprising a tube section inserted into the axial passages of each ring, said tube section being surrounded by said gaskets.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |