US3782702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for mixing and treating fluids
Assignee: Individual
•
Filing: 1969-12-29
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Granted: 1974-01-01
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Expires: 1989-12-29
Abstract
Abstract An apparatus for mixing and treating fluids includes a rotatable hollow shaft having an impeller section which is extended into a first fluid. The impeller section includes a plurality of spiral blades which move and agitate the first fluid and an opening adjacent the blades through which a second fluid in the shaft communicates with the first fluid. The movement of the first fluid creates a suction zone which causes the second fluid to be drawn through the shaft and out the opening.
Inventors
- 👤 R King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:00
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/233; B01F23/2331; B01F23/23311; B01F23/2335; B01F23/23352; B01F23/2366; B01F23/2368; B01F27/00; B01F27/80; B01F27/81; B01F33/00; B01F33/80; B01F33/81; B01F23/23314; B01F23/23353; B01F27/05; B01F27/11; B01F27/111; B01F27/114; B01F27/1144; B01F27/19; B01F27/192
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
195 words
An apparatus for mixing and dispersing a first fluid into a second fluid, comprising: a shaft; an impeller section on said shaft adapted to be submerged and rotated in a first fluid, said impeller section including first and second external surfaces and an internal chamber within said first and second external surfaces; means including a passageway in communication with a second fluid and extending from said second fluid to said internal chamber for communication of said second fluid to said internal chamber; said first external surface being curved in cross-section and having a flange portion extending radially from the axis of said shaft; a plurality of continuous spiral screw blades encircling said first external surface and terminating on said flange portion, said blades having an outer periphery defining a flaring surface of revolution and adapted to circulate said first fluid along said first external surface and radially outward past said flange portion; and said impeller section having an opening between said first and second external surfaces and adjacent to said flange portion, said opening in communication with said internal chamber and adapted to pass said second fluid from said internal chamber into said first fluid.
Claim 2
Independent Claim
195 words
An apparatus for mixing and dispersing a first fluid into a second fluid, comprising: a shaft; an impeller section on said shaft adapted to be submerged and rotated in a first fluid, said impeller section including first and second external surfaces and an internal chamber within said first and second external surfaces; means including a passageway in communication with a second fluid and extending from said second fluid to said internal chamber for communication of said second fluid to said internal chamber; said first external surface being curved in cross-section and having a flange portion extending radially from the axis of said shaft; a plurality of continuous spiral screw blades encircling said first external surface and terminating on said flange portion, said blades having an outer periphery defining a flaring surface of revolution and adapted to circulate said first fluid along said first external surface and radially outward past said flange portion; and said impeller section having an opening between said first and second external surfaces and adjacent to said flange portion, said opening in communication with said internal chamber and adapted to pass said second fluid from said internal chamber into said first fluid.
Claim 3
Dependent Claim
80 words
The apparatus of claim 1, wherein said second external surface is curved in cross-section and has a flange portion extending radially from the axis of said shaft and adjacent said opening, a plurality of continuous spiral screw blades encircling said second external surface and terminating on said flange portion, said blades having an outer periphery defining a flaring surface of revolution and adapted to move said first fluid along said second external surface and radially outward past said flange portion.
Claim 4
Dependent Claim
31 words
The apparatus of claim 2, wherein a plurality of five spiral screw blades encircle said first external surface and a plurality of five spiral screw blades encircle said second external surface.
Claim 5
Dependent Claim
30 words
The apparatus of claim 1, wherein said second external surface has a flange adjacent said opening and said flanges of said first and second external surfaces extend outwardly and downwardly.
Claim 6
Dependent Claim
28 words
The apparatus of claim 1, wherein said second external surface has a flange adjacent said opening, and said flanges of said first and second external surfaces are flared.
Claim 7
Dependent Claim
14 words
The apparatus of claim 1, wherein said opening extends circumferentially around said impeller section.
Claim 8
Dependent Claim
41 words
The apparatus of claim 6, wherein vanes are provided in said internal chamber, said vanes extending radially inward from said circumferential opening to said internal chamber and adapted to direct said second fluiD from said internal chamber through said circumferential opening.
Claim 9
Dependent Claim
61 words
The apparatus of claim 1, wherein said first external surface is curved in cross-section downwardly and outwardly and said second external surface is curved in cross-section upwardly and outwardly, said second surface having a radially extending flange portion, and a plurality of continuous spiral screw blades encircling said second external surface and having a periphery defining a flaring surface of revolution.
Claim 10
Dependent Claim
33 words
The apparatus of claim 8, wherein said blades on said first external surface downwardly encircle said first external surface in the same direction in which said blades upwardly encircle said second external surface.
Claim 11
Independent Claim
215 words
An apparatus for mixing and dispersing a first fluid into a second fluid, comprising: a shaft; an impeller section on said shaft adapted to be submerged and rotated in a first fluid, said impeller section including first and second external surfaces and an internal chamber within said first and second external surfaces; means including a passageway in communication with a second fluid and extending from said second fluid to said internal chamber for communication of said second fluid to said internal chamber; said first and second external surfaces each being curved in cross-section and each having a flange portion extending radially from the axis of said shaft; a plurality of continuous spiral screw blades encircling said first and second external surfaces and extending from a section on said surfaces substantially in axial alignment with said shaft toward said flange portions, said blades smoothly transforming the movement of direction of said first fluid from an axial direction substantially to a radial direction past said flange portions during rotation of said impeller section; and said impeller section having a circumferential opening positioned between said first and second external surfaces adjacent to said flange portions, said opening in communication with said internal chamber and adapted to pass said second fluid from said internal chamber into said first fluid.
Claim 12
Independent Claim
215 words
An apparatus for mixing and dispersing a first fluid into a second fluid, comprising: a shaft; an impeller section on said shaft adapted to be submerged and rotated in a first fluid, said impeller section including first and second external surfaces and an internal chamber within said first and second external surfaces; means including a passageway in communication with a second fluid and extending from said second fluid to said internal chamber for communication of said second fluid to said internal chamber; said first and second external surfaces each being curved in cross-section and each having a flange portion extending radially from the axis of said shaft; a plurality of continuous spiral screw blades encircling said first and second external surfaces and extending from a section on said surfaces substantially in axial alignment with said shaft toward said flange portions, said blades smoothly transforming the movement of direction of said first fluid from an axial direction substantially to a radial direction past said flange portions during rotation of said impeller section; and said impeller section having a circumferential opening positioned between said first and second external surfaces adjacent to said flange portions, said opening in communication with said internal chamber and adapted to pass said second fluid from said internal chamber into said first fluid.
Claim 13
Dependent Claim
26 words
The apparatus of claim 10 wherein vanes are provided in said internal chamber, said vanes extending radially inward from said circumferential opening to said internal chamber.
Claim 14
Dependent Claim
31 words
The apparatus of claim 10 wherein said spiral screw blades encircling said external surfaces are inclined with respect to the axis of said shaft as they extend toward said flange portions.
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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) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |