US3612282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supporting structures and containing vessels for reverse osmosis and filtration
Assignee: CHEN YEN CHENG DR
•
Filing: 1969-08-14
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Granted: 1971-10-12
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Expires: 1989-08-14
Abstract
Abstract A reverse osmosis separator unit having many small composite membrane tubes 0.5 mm. to 5 mm. O.D. placed together in a membrane tube assembly. Several membrane tube assemblies are installed in a honeycomb pressure vessel to form a separator unit. A small membrane supporting tube is made by forming either a strip of solid sheet material which may or may not be perforated or a strip of porous sheet material. The seam of the formed tube, the perforations and the pores serve as intermediate passages for collecting product water into the supporting tube.
Inventors
- 👤 Sing-Wang Cheng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:26
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/02; B01D61/08; B01D63/00; B01D63/06; B01D63/062; B01D63/065; B01D2313/00; B01D2313/14; B01D2313/146
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
18 words
A reverse osmosis separator unit of claim 1, wherein the said slit opening is jointed together at intervals.
Claim 2
Dependent Claim
30 words
A reverse osmosis separator unit of claim 1, wherein the said support tube being so constructed and arranged that at least a wing is formed along the said slit opening.
Claim 3
Dependent Claim
30 words
A reverse osmosis separator unit of claim 1, wherein the said support tube being so constructed and arranged that at least a pocket is formed along the said slit opening.
Claim 4
Dependent Claim
17 words
A reverse osmosis separator unit of claim 1, wherein the said sheet material has perforations on it.
Claim 5
Dependent Claim
17 words
A reverse osmosis separator unit of claim 1, wherein the said sheet material is a porous material.
Claim 6
Dependent Claim
71 words
A membrane tube for a reverse osmosis separation process consisting of a semipermeable membrane and a support tube for supporting the said semipermeable membrane, said support tube having an outside diameter between 0.5 mm. to 5 mm., said support tube being so constructed and arranged from sheet material that there results a continuous seam with at least an opening to provide passage means of collecting product water into the support tube.
Claim 7
Dependent Claim
27 words
A membrane tube of claim 7, wherein the said support tube being so constructed and arranged that at least a wing is formed along the said seam.
Claim 8
Dependent Claim
27 words
A membrane tube of claim 7, wherein the said support tube being so constructed and arranged that at least a pocket is formed along the said seam.
Claim 9
Dependent Claim
15 words
A membrane tube of claim 7, wherein the said sheet material has perforations on it.
Claim 10
Dependent Claim
15 words
A membrane tube of claim 7, wherein the said sheet material is a porous material.
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) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |