US3929088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of water-in-oil emulsions of water soluble vinyl addition polymers to improve the efficiency of jet powered ships
Assignee: ChampionX LLC
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Filing: 1974-07-11
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Granted: 1975-12-30
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Expires: 1994-07-11
Abstract
Abstract A method for improving the operating efficiency of an aqueous jet propelled ship by the introduction of a water-in-oil emulsion of a finely divided water soluble vinyl addition polymer into the water stream that propels the ship is described. The polymer so added improved the cohesive character of the water stream by eliminating tangential flow through the nozzles while also improving the water stream''s turbulence reduction properties within the propulsion system.
Inventors
- 👤 Paul L Dubrow
- 👤 Alvin J Frisque
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:58
CPC Classifications
B; B63; B63H; B63H11/00; B63H11/02; Y; Y02; Y02T; Y02T70/00; Y02T70/10; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0391
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
103 words
A METHOD FOR IMPROVING THE OPERATING EFFICIENCY OF AN AQUEOUS JET PROPELLED SHIP OF THE TYPE WHERE A HIGH PRESSURE JET OF WATER IS FORCED OUTWARD THROUGH ON OR MORE ORIFICES BELOW THE NORMAL WATER LEVEL OF THE SHIP TO BE PROPELLED WHICH IMPROVEMENT COMPRISES THE STEPS OF: A. ADDING TO THE HIGH PRESSURE JET OF WATER BEING FORCED OUTWARD BEFORE IT LEAVES THE SHIP, A QUANTITY OF WATER-INOIL EMULSION OF A FINELY DIVIDED WATER SOLUBLE VINYL ADDITION POLYMER SO THAT THE POLYMER IS PRESENT IN THE HIGH PRESSURE JET OF WATER AT LEVELS OF FROM 0.003% TO 10% BY WEIGHT, AND THEN,
Claim 2
Independent Claim
103 words
A METHOD FOR IMPROVING THE OPERATING EFFICIENCY OF AN AQUEOUS JET PROPELLED SHIP OF THE TYPE WHERE A HIGH PRESSURE JET OF WATER IS FORCED OUTWARD THROUGH ON OR MORE ORIFICES BELOW THE NORMAL WATER LEVEL OF THE SHIP TO BE PROPELLED WHICH IMPROVEMENT COMPRISES THE STEPS OF: A. ADDING TO THE HIGH PRESSURE JET OF WATER BEING FORCED OUTWARD BEFORE IT LEAVES THE SHIP, A QUANTITY OF WATER-INOIL EMULSION OF A FINELY DIVIDED WATER SOLUBLE VINYL ADDITION POLYMER SO THAT THE POLYMER IS PRESENT IN THE HIGH PRESSURE JET OF WATER AT LEVELS OF FROM 0.003% TO 10% BY WEIGHT, AND THEN,
Claim 3
Dependent Claim
28 words
The process of claim 1 wherein said water-in-oil emulsion of a finely divided water soluble vinyl addition polymer is a water-in-oil emulsion of a finely divided acrylamide polymer.
Claim 4
Dependent Claim
44 words
The process of claim 1 wherein the water-in-oil emulsion of a finely divided water soluble vinyl addition polymer contains from 0.01 to 10% by weight based on the polymer contained in said emulsion of a water soluble hydrophillic surfactant capable of inverting the polymer.
Claim 5
Dependent Claim
34 words
The process of claim 1 wherein said water-in-oil emulsion of a finely divided water soluble vinyl addition polymer is added to the high pressure jet of water by the use of a metering pump.
References Cited (Backward Citations)
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US3516376A
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US3628488A
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US3734873A
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US3820714A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |