US3799515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for supplying a gas, especially an oxygen into a liquid
Assignee: Individual
•
Filing: 1973-05-03
•
Granted: 1974-03-26
•
Expires: 1993-05-03
Abstract
Abstract A device for introducing a gas into a liquid, as for depollution of a stream or pond. A rotatable shaft, journalled in floating or fixed bearings, has radial extensions formed both by propelling plates and brush parts. The propelling plates and brushes may be secured to a hollow core, which is fastened to the shaft, and the weight of the whole device may be lower than the lifting power of the liquid on the device. The propelling plates may be helically arranged around the shaft, so that a continuous rotation of the shaft is obtained by the stream of the liquid, and the propelling plates may be prolonged in tangential direction to increase the propelling force thereof. The brushes may rotate relatively to the shaft. A guiding gutter may be provided at the area of the propelling plates, water being pushed through the gutter for causing the shaft to rotate, and the gutter may have a venturi-like section.
Inventors
- 👤 A Geerlings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:58
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/16; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/234; B01F23/2342; C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/14; C02F3/18; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
111 words
A device for introducing a gas into a liquid, comprising a freely rotatable shaft having associated therewith radial extensions formed by alternate propelling plates and brushes, each of said brushes, in use, enclosing therein a large quantity of air during the period of the revolution cycle when the brushes are positioned above the level of said liquid, said plates being adapted to cause rotation of said shaft and brushes by contact with a stream of liquid when partially immersed therein, said propelling plates being helically shaped and helically arranged around the shaft alternatively with said brushes so that a continuous rotation of the shaft is obtained by the stream of liquid.
Claim 2
Independent Claim
111 words
A device for introducing a gas into a liquid, comprising a freely rotatable shaft having associated therewith radial extensions formed by alternate propelling plates and brushes, each of said brushes, in use, enclosing therein a large quantity of air during the period of the revolution cycle when the brushes are positioned above the level of said liquid, said plates being adapted to cause rotation of said shaft and brushes by contact with a stream of liquid when partially immersed therein, said propelling plates being helically shaped and helically arranged around the shaft alternatively with said brushes so that a continuous rotation of the shaft is obtained by the stream of liquid.
Claim 3
Independent Claim
114 words
A device for introducing a gas into a liquid, comprising a freely rotatable shaft having associated therewith radial extensions formed by alternate propelling plates and brushes, each of said brushes, in use, enclosing therein a large quantity of air during the period of the revolution cycle when the brushes are positioned above the level of said liquid, said plates being adapted to cause rotation of said shaft and brushes by contact with a stream of liquid when partially immersed therein, said propelling plates and brushes being secured to a floatable hollow core, which is fastened to the shaft, said core being formed of polyvinyl chloride or polyester reinforced with fibre glass or hard foam.
Claim 4
Independent Claim
114 words
A device for introducing a gas into a liquid, comprising a freely rotatable shaft having associated therewith radial extensions formed by alternate propelling plates and brushes, each of said brushes, in use, enclosing therein a large quantity of air during the period of the revolution cycle when the brushes are positioned above the level of said liquid, said plates being adapted to cause rotation of said shaft and brushes by contact with a stream of liquid when partially immersed therein, said propelling plates and brushes being secured to a floatable hollow core, which is fastened to the shaft, said core being formed of polyvinyl chloride or polyester reinforced with fibre glass or hard foam.
Claim 5
Independent Claim
100 words
A device for introducing a gas into a liquid, comprising a freely rotatable shaft having associated therewith radial extensions formed by alternate propelling plates and brushes, each of said brushes, in use, enclosing therein a large quantity of air during the period of the revolution cycle when the brushes are positioned above the level of said liquid, said plates being adapted to cause rotation of said shaft and brushes by contact with a stream of liquid when partially immersed therein, said brushes being mounted on a second rotatable shaft connected to and adapted to rotate relatively to said first-mentioned shaft.
Claim 6
Independent Claim
100 words
A device for introducing a gas into a liquid, comprising a freely rotatable shaft having associated therewith radial extensions formed by alternate propelling plates and brushes, each of said brushes, in use, enclosing therein a large quantity of air during the period of the revolution cycle when the brushes are positioned above the level of said liquid, said plates being adapted to cause rotation of said shaft and brushes by contact with a stream of liquid when partially immersed therein, said brushes being mounted on a second rotatable shaft connected to and adapted to rotate relatively to said first-mentioned shaft.
Claim 7
Independent Claim
107 words
A device for introducing a gas into a liquid, comprising a freely rotatable shaft having associated therewith radial extensions formed by alternate propelling plates and brushes, each of said brushes, in use, enclosing therein a large quantity of air during the period of the rEvolution cycle when the brushes are positioned above the level of said liquid, said plates being adapted to cause rotation of said shaft and brushes by contact with a stream of liquid when partially immersed therein, said propelling plates being prolonged in the tangential direction to increase the propelling force thereof, said plates being connected to each other at said prolongations by wires.
Claim 8
Independent Claim
107 words
A device for introducing a gas into a liquid, comprising a freely rotatable shaft having associated therewith radial extensions formed by alternate propelling plates and brushes, each of said brushes, in use, enclosing therein a large quantity of air during the period of the rEvolution cycle when the brushes are positioned above the level of said liquid, said plates being adapted to cause rotation of said shaft and brushes by contact with a stream of liquid when partially immersed therein, said propelling plates being prolonged in the tangential direction to increase the propelling force thereof, said plates being connected to each other at said prolongations by wires.
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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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |