US3557962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reverse osmosis fabric
Assignee: Boeing North American Inc
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Filing: 1968-06-28
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Granted: 1971-01-26
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Expires: 1988-06-28
Abstract
Abstract An improved reverse osmosis fabric having hollow fibers arranged in a predetermined pattern, either woven or nonwoven, that is relatively flexible yet provides a stable fabric configuration.
Inventors
- 👤 Arthur L Kohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:11
CPC Classifications
B; B01; B01D; B01D63/00; B01D63/02; B01D63/026; B01D63/024; B01D63/032
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
102 words
A nonwoven fabric for a reverse osmosis system that collects a product fluid from a pressurized feed fluid, the fabric comprising: a. first hollow reverse osmosis fiber means defining a permeable wall means in fluid contact with the system feed fluid and adapted to pass a product fluid forced from the feed fluid in a predetermined direction through said wall means; and b. second fiber means cooperating with said first fiber means and suitably positioned in a predetermined arrangement with said first fiber means, said first and second fiber means having adjoining portions suitably connected so that a stable fabric configuration results.
Claim 2
Dependent Claim
26 words
The fabric of claim 2 in which said first fiber means is a hollow woof fiber and said second fiber means is a solid warp fiber.
Claim 3
Dependent Claim
85 words
A nonwoven fabric for a reverse osmosis system that collects a product fluid from a pressurized feed fluid, the fabric comprising a hollow reverse osmosis fiber means, and a nonplanar flexible member cooperating with said fiber means, said fiber means connected to said flexible member so that a stable fabric configuration results, said fiber means defining a permeable wall in fluid contact with the feed fluid and adapted to pass a product fluid forced from the feed fluid in a predetermined direction through said wall.
Claim 4
Dependent Claim
27 words
The fabric of claim 4 in which said nonplanar flexible member is corrugated and defining substantially parallel ridges and grooves oriented generally transverse to said fiber means.
Claim 5
Dependent Claim
17 words
The fabric of claim 5 in which said nonplanar flexible member is formed from a polymeric material.
Claim 6
Dependent Claim
24 words
The fabric of claim 5 in which said fiber means are connected to said nonplanar flexible member by means of a resin bonding material.
Claim 7
Dependent Claim
14 words
The fabric of claim 7 in which the bonding material is an epoxy resin.
References Cited (Backward Citations)
US3401798A
Cited
US3342724A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |