Patent US3614072A successfully refreshed from Google Patents.
US3614072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic flow inducer
Assignee: Individual
•
Filing: 1969-01-02
•
Granted: 1971-10-19
•
Expires: 1989-01-02
Abstract
Abstract A method and apparatus for aerating and propelling sewage in an oxidation channel includes a support designed to extend into the channel in inclined position. A propeller shaft is supported on the support having a screw propeller on one (the lower) end and having a drive mechanism at the upper end above the liquid level. The carrier liquid is circulated in the channel by the propeller. Air is discharged into the liquid on the suction side of the propeller and is drawn into the propeller slipstream for intimate mixing with the liquid.
Inventors
- 👤 James H Brodie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:21
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/20; C02F3/205; C02F3/207; B; B01; B01F; B01F33/00; B01F33/50; B01F33/502; B01F23/00; B01F23/20; B01F23/23; B01F23/233; B01F23/2331; B01F23/23313; B01F23/2333; B01F23/2335; B01F23/23353; B01F23/2336; B01F23/23367; B01F27/00; B01F27/60; B01F27/71; B01F27/80; B01F27/805; B01F33/5027; B01F27/05; B01F27/07; B01F27/072; B01F27/0725; B01F27/11; B01F27/113; B01F27/61; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
138 words
A fluid treating system for inducing horizontal flow of current at a generally low and constant linear velocity of a sewage liquid which contains suspended colloidal particles, organic material, bacteria and dissolved gases including oxygen comprising an elongated horizontal continuous circuit of an open oxidation channel of a generally constant and U-shaped crosssectional area, the apparatus including: a power source, a mechanical transmission connected to said power source and driven thereby, shaft means extending longitudinally of said elongated channel on a generally horizontal axis from said transmission and driven thereby, a screw-type propeller on said shaft means in spaced relation to said transmission positioned in said channel and rotatable therewith positioned in said channel, a supporting structure for holding intact and in proper relation said power source, transmission, shaft means and propeller and aeration means in said channel.
Claim 2
Dependent Claim
138 words
A fluid treating system for inducing horizontal flow of current at a generally low and constant linear velocity of a sewage liquid which contains suspended colloidal particles, organic material, bacteria and dissolved gases including oxygen comprising an elongated horizontal continuous circuit of an open oxidation channel of a generally constant and U-shaped crosssectional area, the apparatus including: a power source, a mechanical transmission connected to said power source and driven thereby, shaft means extending longitudinally of said elongated channel on a generally horizontal axis from said transmission and driven thereby, a screw-type propeller on said shaft means in spaced relation to said transmission positioned in said channel and rotatable therewith positioned in said channel, a supporting structure for holding intact and in proper relation said power source, transmission, shaft means and propeller and aeration means in said channel.
Claim 3
Dependent Claim
88 words
The apparatus of claim 1 including means for varying the speed of said powering means to enable the adjustment setting of said constant linear velocity of said liquid to that which produces uniform suspension of said colloidal particles and organic materials throughout the entire volume of said oxidation channel, said linear velocity being adjusted to a velocity low enough so as to minimize the disintegration of said colloidal particles which would reduce and interfere with their settleability in a relatively stagnant tank, separate from the said oxidation channel.
Claim 4
Dependent Claim
111 words
The structure of claim 1 and in which said supporting structure includes a platform on which said power source and said transmission are supported, a beam secured to said platform and extending therefrom in generally parallel relation to said shaft, bearing means on said beam supporting said shaft extending longitudinally of said elongated channel and parallel with the direction of hydraulic force of said propeller, said propeller extending substantially the full depth of the channel and said supporting structure holding said propeller with the top extremity of its diameter slightly below the surface of the liquid sewage and the bottom extremity of its diameter slightly above the bottom of the channel.
Claim 5
Dependent Claim
41 words
The structure of claim 3 and including downwardly extending means secured to said beam near the end thereof adjacent said propeller extending into contact with the channel bottom to assist in holding said propeller out of contact with the channel bottom.
Claim 6
Dependent Claim
23 words
The structure of claim 4 and in which said doWnwardly extending means includes wheel means supported on an axis transverse of said channel.
Claim 7
Dependent Claim
50 words
The structure of claim 3 and including a suspending means including an elevated beam spanning said channel from one side thereof to the other, standards supporting the ends of said elevated beam and means connecting said supporting means to the elevated beam to support the same beneath said elevated beam.
Claim 8
Dependent Claim
40 words
The structure of claim 6 and in which said elevated beam includes a track spanning said channel, and a trolley including wheels designed to roll along said track transversely of said channel, said connecting means being secured to said trolley.
Claim 9
Dependent Claim
108 words
The structure of claim 7 and including strut means pivotally connecting said platform to said trolley and block and tackle means connecting said trolley to said first-named beam at a point spaced from said platform, said struts means and said block and tackle means being so arranged that the resultant forces of gravity on said supporting means and structure supported thereby, the compressive forces in said strut means due to propeller rotation, and the tension forces of said block and tackle means may act through the center of gravity of the supporting means and structure supported thereby and through a point on the vertical centerline of said trolley.
Claim 10
Dependent Claim
20 words
The structure of claim 8 and including means adjoining one of said standards for actuating said block and tackle means.
Claim 11
Dependent Claim
21 words
The structure of claim 7 and including means adjoining one of said standards for moving said trolley transversely of said track.
Claim 12
Dependent Claim
49 words
The structure of claim 1 and including an air compressor on said supporting means, and an air pipe extending from said compressor to a point near said propeller through which air is discharged into the slipstream of said propeller, and means connected to said compressor to actuate the same.
Claim 13
Dependent Claim
19 words
The structure of claim 11 and in which said air pipe terminates on the suction side of said propeller.
Claim 14
Independent Claim
162 words
A method of propelling and aerating sewage in a carrier liquid in a continuous operation channel through the use of a screw propeller supported on an axis extending substantially longitudinally of the open channel, the sewage liquid containing colloidal particles, organic material, bacteria and dissolved gasses including oxygen, the method consisting in the steps of rotating the propeller to produce a turbulent spiral slipstream to move the carrier liquid longitudinally of the channel, and releasing air on the suction side of the propeller in an area where hydraulic pressure is less than in other parts of the open channel, and where the introduction of air induces cavitation causing cavities in the liquid in the channel, wherein the cavities formed by the released air act as multiple bubble chambers for air and water vapor to mix and saturate each other prior to being conducted through the propeller and accelerated along the discharge slipstream and being mixed with the liquid of the open channel.
Claim 15
Independent Claim
162 words
A method of propelling and aerating sewage in a carrier liquid in a continuous operation channel through the use of a screw propeller supported on an axis extending substantially longitudinally of the open channel, the sewage liquid containing colloidal particles, organic material, bacteria and dissolved gasses including oxygen, the method consisting in the steps of rotating the propeller to produce a turbulent spiral slipstream to move the carrier liquid longitudinally of the channel, and releasing air on the suction side of the propeller in an area where hydraulic pressure is less than in other parts of the open channel, and where the introduction of air induces cavitation causing cavities in the liquid in the channel, wherein the cavities formed by the released air act as multiple bubble chambers for air and water vapor to mix and saturate each other prior to being conducted through the propeller and accelerated along the discharge slipstream and being mixed with the liquid of the open channel.
References Cited (Backward Citations)
US1526596A
Cited
US2116023A
Cited
US2865618A
Cited
US2928661A
Cited
US3160685A
Cited
US3206176A
Cited
US3320160A
Cited
US3342727A
Cited
US3416729A
Cited
US3462132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |