US3710946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welded connectors for tubular separator module
Assignee: Calgon Corp
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Filing: 1971-05-18
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Granted: 1973-01-16
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Expires: 1991-05-18
Abstract
Abstract A unitary molded header element is disclosed accommodating a plurality of fittings for internally coated reverse osmosis or ultrafiltration tubes. A turn-around channel is provided for each pair of tubes inserted in the header. The turn-around channel is integral in the mold; it may be sealed from the butt end with a plug which may be sonic welded to the header. The header enables assembly of a unique module.
Inventors
- 👤 E Sawyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:28
CPC Classifications
B; B01; B01D; B01D63/00; B01D63/06; B01D63/062; B01D63/063
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
42 words
A unitary header for a tubular permeability separator module, comprising a solid cast body having a plurality of pairs of holes therethrough, each pair connected by a sonic welded plug providing communication between the holes at the exterior ends of the header.
Claim 2
Dependent Claim
42 words
A unitary header for a tubular permeability separator module, comprising a solid cast body having a plurality of pairs of holes therethrough, each pair connected by a sonic welded plug providing communication between the holes at the exterior ends of the header.
Claim 3
Dependent Claim
48 words
A permeability separator module including two unitary headers having pairs of holes communicating through sonic welded plugs, the pairs of holes connected sequentially through permeable tubes, a shroud surrounding the permeable tubes and connected in sealed relation to the headers, and means for withdrawing permeate from the module.
Claim 4
Dependent Claim
48 words
A permeability separator module including two unitary headers having pairs of holes communicating through sonic welded plugs, the pairs of holes connected sequentially through permeable tubes, a shroud surrounding the permeable tubes and connected in sealed relation to the headers, and means for withdrawing permeate from the module.
Claim 5
Dependent Claim
22 words
A module of claim 2 including tubular adapters for engaging the ends of said permeable tubes in sealed relation to the headers.
Claim 6
Dependent Claim
31 words
Module of claim 2 in which the means for withdrawing permeate are in one header, and the means for introducing feed solution and withdrawing feed concentrate are in the other header.
References Cited (Backward Citations)
US2353489A
Cited
US3485374A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |