US3772847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of transferring substances contained in a current of gas to a current of liquid, in which the substances are concentrated
Assignee: US Philips Corp
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Filing: 1971-07-12
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Granted: 1973-11-20
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Expires: 1991-07-12
Abstract
Abstract A method of transferring substances contained in a radioactive gas to a current of liquid in which the substances are concentrated after which they are analyzed. The gas is introduced into a vertically arranged cylindrical tube in which a rotary shaft provided with blades, preferably helical blades, rotates which blades carry a liquid which absorbs the gas. During the period in which the transfer of the substance is substantially complete, the component of the velocity of the gas current in the direction of movement of the liquid is not greater than the travelling speed of the liquid.
Inventors
- 👤 J Houtman
- 👤 W Cramer
- 👤 G Piet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:36
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/28; G01N1/40
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
135 words
A device for transferring substances contained in a current of gas containing radioactive constituents to a current of liquid in which the substances are concentrated comprising a substantially vertically arranged cylindrical tube having inlet and outlet apertures for the gas and a lateral liquid inlet, and a rotary shaft coaxial with the tube and provided with blades, said blades are of helical form and at the location of the lateral inlet of the liquid they are provided with a notch which promotes atomization of the liquid, and means to rotate the shaft at a speed at which during the Period in which the transfer of substance is substantially complete, the component of velocity of the gas current in the direction of movement of the liquid is not greater than the travelling speed of the liquid.
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) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |