Patent US4512018A successfully refreshed from Google Patents.
Patent US3744765A successfully refreshed from Google Patents.
US3744765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine mixer
Assignee: Individual
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Filing: 1971-10-28
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Granted: 1973-07-10
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Expires: 1991-10-28
Abstract
Abstract A turbine mixer in which a turbine type impeller is immersed in a vat containing liquids and solids to be mixed. The turbine when rotating in liquids of differing viscosities tends to either produce a vortex or open space such as would starve the intake side of the turbine and prevent its operation or overfill the vortex producing excessive load factors. A pump is provided to draw material either from the side of the vat or from the bottom of the vortex and pump it to the opposite position to control the vortex so as to be filled to the desired depth.
Inventors
- 👤 M Bard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:56
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/233; B01F23/2331; B01F23/23311; B01F23/2334; B01F23/23342; B01F23/2335; B01F23/23352; B01F23/23353; B01F23/2336; B01F23/23364; B01F27/00; B01F27/05; B01F27/11; B01F27/111; B01F27/80; B01F27/81; B01F23/23314
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
95 words
A turbine mixer comprising a vat for containing liquid and solid materials to be mixed, a shaft supported vertically in said vat in offset relation to the axis of said vat for rotation therein, means connected to said shaft for rotating said shaft, a turbine mixer element secured to the lower end of said shaft in said vat, and means for moving liquid materials to and from the outer lower side edges of the vat to and from the bottom center of said vat below said turbine mixer to control the vortex in said vat.
Claim 2
Dependent Claim
95 words
A turbine mixer comprising a vat for containing liquid and solid materials to be mixed, a shaft supported vertically in said vat in offset relation to the axis of said vat for rotation therein, means connected to said shaft for rotating said shaft, a turbine mixer element secured to the lower end of said shaft in said vat, and means for moving liquid materials to and from the outer lower side edges of the vat to and from the bottom center of said vat below said turbine mixer to control the vortex in said vat.
Claim 3
Dependent Claim
77 words
A device as claimed in claim 1 wherein the means for moving the material includes a pump, first conduit means connecting said pump to the lower side portion of said vat, second conduit means connecting said pump centrally of the bottom of said vat, and valve means controlling the flow of material through said first and second conduit means for moving material in either direction from the bottom of said vat to the side of said vat.
Claim 4
Dependent Claim
77 words
A device as claimed in claim 1 wherein said turbine mixer element is provided with a hub, a central disk secured to said hub and extending outwardly therefrom, a plurality of mixing and pumping teeth formed on the peripheral edge of said disk with at least some of the teeth being sloped upwardly and downwardly from the plane of said disk, and means on said hub for directing fluids in said vat into contact with said teeth.
Claim 5
Dependent Claim
23 words
A device as claimed in claim 3 wherein the means for directing fluid against said teeth is positioned above and below said disk.
Claim 6
Dependent Claim
30 words
A device as claimed in claim 4 wherein the means for directing fluid against said teeth includes a pair of annular venturi formed adjacent the outer edges of said disk.
Claim 7
Dependent Claim
48 words
A device as claimed in claim 3 wherein a pair of annular venturi are formed adjacent the outer edges of said disk between said fluid directing means and said disk and means are provided on said fluid directing means for feeding fluid into each of said annular venturi.
Claim 8
Dependent Claim
26 words
A device as claimed in claim 6 wherein means are provided in said turbine mixer element for introducing air or gas into the materials being mixed.
Claim 9
Dependent Claim
34 words
A device as claimed in claim 7 wherein the means for introducing air or gas includes a venturi throat at the point of intermix of the air or gas with the materials being mixed.
Claim 10
Dependent Claim
30 words
A device as claimed in claim 7 wherein the means for introducing air or gas includes a plurality of conduits formed in said disk and extending from a hollow shaft.
Claim 11
Dependent Claim
44 words
A device as claimed in claim 1 wherein the means for moving liquid materials to and from the outer lower side edges of the vat to and from the bottom center of the vat include a pump for supplying the liquid materials under pressure.
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) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |