Patent US3439919A successfully refreshed from Google Patents.
US4046528A
Expired / Lapsed
US
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Degassing system
Assignee: Smith International Inc
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Filing: 1975-04-28
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Granted: 1977-09-06
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Expires: 1995-04-28
Abstract
Abstract A system for degassing fluids, particularly drilling muds, which includes a pump for introducing the gas laden fluid, under pressure, into a closed degassing vessel wherein the gas is disengaged, in a substantially oxygen free atmosphere, from the fluid, the gas and degassed fluids leaving the degassing vessel through a common outlet which is equipped with an exhausting system for discharging the disengaged gas from the system.
Inventors
- 👤 Walter E. Liljestrand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:32
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/0042; B01D19/0047; E; E21; E21B; E21B21/00; E21B21/06; E21B21/063; E21B21/067
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
98 words
In a system for degassing fluids, the combination comprising: a degassing vessel having an inlet and an outlet, said outlet being disposed substantially at the bottom of said vessel and including an outlet conduit forming a common discharge from said vessel for said fluid and gas disengaged in said vessel; means connected to the inlet of said degassing vessel for introducing fluid under pressure into said vessel; means connected to said outlet conduit for exhausting gas disengaged from said fluid in said vessel; and means for substantially preventing introduction of air into said vessel through said outlet conduit.
Claim 2
Dependent Claim
98 words
In a system for degassing fluids, the combination comprising: a degassing vessel having an inlet and an outlet, said outlet being disposed substantially at the bottom of said vessel and including an outlet conduit forming a common discharge from said vessel for said fluid and gas disengaged in said vessel; means connected to the inlet of said degassing vessel for introducing fluid under pressure into said vessel; means connected to said outlet conduit for exhausting gas disengaged from said fluid in said vessel; and means for substantially preventing introduction of air into said vessel through said outlet conduit.
Claim 3
Dependent Claim
27 words
The system of claim 1 wherein said means for exhausting comprises blower means having its intake in open communication with said outlet conduit of said degassing vessel.
Claim 4
Dependent Claim
29 words
The system of claim 2 wherein said means for exhausting further includes a gas collecting hood disposed between and in open communication with said outlet conduit and said intake.
Claim 5
Dependent Claim
41 words
The system of claim 1 further including movable gas seal means operatively connected to said outlet conduit, said gas seal means serving to permit discharge of said degassed fluid while preventing substantial release of said gas removed in said degassing vessel.
Claim 6
Dependent Claim
18 words
The system of claim 4 wherein said outlet conduit defines a trough in open communication with said outlet.
Claim 7
Dependent Claim
16 words
The system of claim 5 wherein said movable gas seal means is disposed in said trough.
Claim 8
Dependent Claim
44 words
The system of claim 6 wherein said trough includes a top wall, a bottom wall, and opposed side walls and said seal means comprises a flap member suspended in said trough and forming a substantial gas seal between said top wall and said flap.
Claim 9
Dependent Claim
15 words
The system of claim 7 wherein said flap member is comprised of a flexible material.
Claim 10
Dependent Claim
17 words
The system of claim 7 wherein said flap member is comprised of a rigid material hingedly suspended.
Claim 11
Dependent Claim
41 words
The system of claim 1 wherein said means for introducing fluid into said vessel comprises a centrifugal pump and there are removing means connected between said means for exhausting and said pump means for removing gas disengaged in said centrifugal pump.
Claim 12
Dependent Claim
39 words
The system of claim 4 wherein said means for exhausting includes atmospheric vent means in open communication with said outlet, said seal means inducing positive pressure of said gas in said outlet to force gas out said vent means.
Claim 13
Dependent Claim
69 words
The system of claim 1 wherein said exhausting means comprises means for establishing flow of driving fluid, a nozzle housing including a chamber and a nozzle connected to said means for establishing flow of said driving fluid to project a driving fluid jet through said chamber, said jet reducing the pressure within said chamber, and gas conduit means connecting said chamber and said outlet conduit of said degassing vessel.
Claim 14
Dependent Claim
39 words
The system of claim 12 including movable gas seal means operatively connected to said outlet conduit, said seal means serving to permit discharge of said degassed fluid while preventing substantial release of said gas removed in said degassing vessel.
Claim 15
Dependent Claim
19 words
The system of claim 12 wherein said means for establishing flow of said driving fluid comprises a blower means.
Claim 16
Dependent Claim
25 words
The system of claim 14 wherein said blower means and said means for introducing fluid into said vessel are driven by a common prime mover.
Claim 17
Dependent Claim
38 words
The system of claim 1 including a receiver for said degassed fluid and wherein said outlet conduit has one end in open communication with said outlet and the other end submerged in said degassed fluid in said receiver.
Claim 18
Dependent Claim
23 words
The system of claim 16 wherein said means for exhausting comprises blower means having its intake in open communication with said outlet conduit.
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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) | 1980-09-05 | 1981-03-07 | 1981-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-05 | 1985-03-07 | 1985-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-05 | 1989-03-07 | 1989-09-06 | $7700.00 | Window Closed / Lapsed |