US4409814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas extracting device
Assignee: Toshiba Corp
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Filing: 1981-02-06
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Granted: 1983-10-18
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Expires: 2001-02-06
Abstract
Abstract A gas extracting device for extracting gas suspended in a liquid from the liquid including a vessel for separating gas suspended in the liquid from the liquid, a mechanism for storing the gas, a mechanism for drawing in the gas from the vessel and for exhausting the gas to the gas storing mechanism, a mechanism for actuating the mechanism for drawing in and exhausting the gas, a vacuum pump connected to the vessel, the gas storing mechanism and the mechanism for drawing in and exhausting the gas and an assembly for selectively intercommunicating the vessel, the mechanism for drawing in and exhausting the gas, the gas storing mechanism and the vacuum pump.
Inventors
- 👤 Hideo Onuma
- 👤 Shigeo Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:33
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/04; G01N30/06; G01N33/00; G01N33/26; G01N33/28; G01N33/2835; G01N33/2841
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
198 words
A gas extracting device for extracting gas suspended in a liquid from the liquid, comprising; vessel means for separating gas suspended in the liquid from the liquid, means for storing the gas, means for drawing in the gas from the vessel means and for exhausting the gas to the gas storing means, said means for drawing including a piston device comprising a disk and cylinder wherein said disk is movable reciprocally in said cylinder, means for actuating the means for drawing in and exhausting the gas, said actuating means comprising a second piston device which is larger than said first piston device and includes a second disk and a second cylinder wherein said second disk is movable reciprocally in said cylinder, a vacuum pump connected to the vessel means, the gas storing means, and the means for drawing in and exhausting the gas, and means for selectively intercommunicating the vessel means, the means for drawing in and exhausting the gas, the gas storing means and the vacuum pump, whereby said gas is extracted from said vessel means to said means for storing by repeated actuation of said piston device and repeated actuation of said means for selectively intercommunicating.
Claim 2
Dependent Claim
198 words
A gas extracting device for extracting gas suspended in a liquid from the liquid, comprising; vessel means for separating gas suspended in the liquid from the liquid, means for storing the gas, means for drawing in the gas from the vessel means and for exhausting the gas to the gas storing means, said means for drawing including a piston device comprising a disk and cylinder wherein said disk is movable reciprocally in said cylinder, means for actuating the means for drawing in and exhausting the gas, said actuating means comprising a second piston device which is larger than said first piston device and includes a second disk and a second cylinder wherein said second disk is movable reciprocally in said cylinder, a vacuum pump connected to the vessel means, the gas storing means, and the means for drawing in and exhausting the gas, and means for selectively intercommunicating the vessel means, the means for drawing in and exhausting the gas, the gas storing means and the vacuum pump, whereby said gas is extracted from said vessel means to said means for storing by repeated actuation of said piston device and repeated actuation of said means for selectively intercommunicating.
Claim 3
Dependent Claim
28 words
A gas extracting device according to claim 1, further comprising injecting means connected to the vessel means for injecting the liquid to be measured to the vessel means.
Claim 4
Dependent Claim
22 words
A gas extracting device according to claim 1, the actuating means being connected to the vacuum pump to drive the actuating means.
Claim 5
Dependent Claim
43 words
A gas extracting device according to claim 3, the piston device being mounted on the axial line of the second piston device, and the first disk of the first piston device is rigidly connected with the second disk of the second piston device.
Claim 6
Dependent Claim
19 words
A gas extracting device according to claim 1, further comprising means for stirring the liquid in the vessel means.
Claim 7
Dependent Claim
35 words
A gas extracting device according to claim 5, the stirring means comprising a magnetic stirrer mounted on the vessel, and a magnetic piece connected to said magnetic stirrer to stir the liquid in the vessel.
Claim 8
Dependent Claim
62 words
A gas extracting device according to claim 1, further comprising a gas analyzer, the gas storing means comprising means for accumulating the gas from the means for drawing in and exhausting the gas, means for passing a carrier gas to be transferred to said gas analyzer, and means for selectively changing the accumulating means into said means for passing the carrier gas.
Claim 9
Dependent Claim
25 words
A gas extracting device according to claim 7, further comprising a pressure sensor mounted between the accumulating and the means for passing the carrier gas.
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) | 1986-10-17 | 1987-04-18 | 1987-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-17 | 1991-04-18 | 1991-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-17 | 1995-04-18 | 1995-10-18 | $7700.00 | Window Closed / Lapsed |