Patent US3776531A successfully refreshed from Google Patents.
US3776531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and propeller for entraining fluids in liquids
Assignee: Individual
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Filing: 1972-03-16
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Granted: 1973-12-04
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Expires: 1992-03-16
Abstract
Abstract Apparatus and propeller for dispersing and entraining a fluid, particularly a gas, in a liquid. The apparatus includes a propeller shaft mounted for rotation, said shaft being closed at one end and having a channel therein communicating at the other end with the fluid to be dispersed, means for rotating the shaft, at least one series of diametrically aligned screw-propeller blades equidistantly spaced around said shaft extending radially from said shaft, and a plurality of diametrically aligned aspirator tubes disposed proximately to said blades equidistantly spaced around said shaft, each of said tubes having a free end disposed generally radially outwardly at least as far as the outer portions of said blades, each of said tubes having a generally longitudinally extending opening formed therethrough, each of said openings being disposed in fluid communication with said channel, and each of said tubes being mounted on said shaft to form an included angle between the longitudinal axis of the opening adjacent the free end thereof and the longitudinal axis of the shaft of not less than 35* nor more than 75*. Each of the tubes is also mounted on said shaft to form an included angle between the longitudinal axis of the opening adjacent the free end thereof and a radially extending plane having the longitudinal axis of said shaft lying therein of not less than one-half degree nor more than 3*. The method of dispersing and entraining fluids in a liquid comprises generating a columnated current of liquid within a body of liquid, creating one or more zones of reduced pressure in the body of liquid adjacent the outer periphery of said columnated current of liquid and rotating said zone or zones about the outer periphery of said columnated current of liquid, introducing a fluid into said body of liquid adjacent the outer periphery of said columnated current of liquid and forming minute globules or bubbles of fluid adjacent the outer periphery of said columnated current of liquid, and entraining said globules or bubbles of fluid within said columnated current of liquid.
Inventors
- 👤 G Ebner
- 👤 M Ebner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:52
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/233; B01F23/2331; B01F23/23311; B01F23/23316; B01F23/2336; B01F23/23362; B01F23/23364; B01F27/00; B01F27/05; B01F27/11; B01F27/114; B01F27/19; B01F27/191
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
298 words
In an apparatus for dispersing fluid in a liquid in combination with a container for holding said liquid: a. a propeller shaft mounted for rotation in said container, said shaft being closed at one end and having a channel therein communicating at the other end of said shaft with the fluid to be dispersed; b. means for rotating said shaft; c. at least one series of diametrically aligned screw-propeller blades equidistantly spaced around said shaft and extending radially therefrom, said blades having an angle of pitch from their leading edges to their trailing edges which is acute to a plane disposed normal to the longitudinal axis of said shaft; and d. a plurality of diametrically aligned aspirator tubes disposed proximate to said blades equidistantly spaced around said shaft, i. each of said tubes having a free end disposed generally radially outwardly at least as far as the outer portions of said blades, ii. each of said tubes having a generally longitudinally extending opening formed therethrough, the longitudinally extending opening of each of said tubes being disposed in fluid communication with said channel whereby fluid may flow from said channel, through said openings and out of the free ends of said tubes, iii. each of said tubes being mounted on said shaft to form an included angle between the longitudinal axis of the opening adjacent the free end thereof and the longitudinal axis of the shaft of not less than 35* nor more than 75*, and iv. each of said tubes also being mounted on said shaft to form an included angle between the longitudinal axis of the opening adjacent the free end thereof and a radially extending plane having the longitudinal axis of said shaft lying therein of not less than one-half degree nor more than three degrees.
Claim 2
Dependent Claim
298 words
In an apparatus for dispersing fluid in a liquid in combination with a container for holding said liquid: a. a propeller shaft mounted for rotation in said container, said shaft being closed at one end and having a channel therein communicating at the other end of said shaft with the fluid to be dispersed; b. means for rotating said shaft; c. at least one series of diametrically aligned screw-propeller blades equidistantly spaced around said shaft and extending radially therefrom, said blades having an angle of pitch from their leading edges to their trailing edges which is acute to a plane disposed normal to the longitudinal axis of said shaft; and d. a plurality of diametrically aligned aspirator tubes disposed proximate to said blades equidistantly spaced around said shaft, i. each of said tubes having a free end disposed generally radially outwardly at least as far as the outer portions of said blades, ii. each of said tubes having a generally longitudinally extending opening formed therethrough, the longitudinally extending opening of each of said tubes being disposed in fluid communication with said channel whereby fluid may flow from said channel, through said openings and out of the free ends of said tubes, iii. each of said tubes being mounted on said shaft to form an included angle between the longitudinal axis of the opening adjacent the free end thereof and the longitudinal axis of the shaft of not less than 35* nor more than 75*, and iv. each of said tubes also being mounted on said shaft to form an included angle between the longitudinal axis of the opening adjacent the free end thereof and a radially extending plane having the longitudinal axis of said shaft lying therein of not less than one-half degree nor more than three degrees.
Claim 3
Dependent Claim
56 words
In an apparatus for dispersing fluid as described in claim 1 above in which each of said tubes are mounted on said shaft to form an included angle between the longitudinal axis of the opening adjacent the free end thereof and the longitudinal axis of the shaft of not less than 53* nor more than 65*.
Claim 4
Dependent Claim
50 words
In an apparatus for dispersing fluid as described in claim 2 above in which each of said tubes are mounted on said shaft to form an included angle between the longitudinal axis of the opening adjacent the free end thereof and the longitudinal axis of the shaft of approximately 58*.
Claim 5
Dependent Claim
246 words
In an apparatus for dispersing fluid in a liquid in combination with a container for holding said liquid: a. a propeller shaft mounted for rotation in said container, said shaft being closed at one end and having a channel therein communicating at the other end of said Shaft with the fluid to be dispersed; b. means for rotating said shaft; c. at least one series of diametrically aligned screw-propeller blades equidistantly spaced around said shaft extending radially from said shaft, said blades having an angle of pitch from their leading edges to their trailing edges which is acute to a plane disposed normal to the longitudinal axis of said shaft; and d. a plurality of diametrically aligned aspirator tubes disposed proximate to said blades equidistantly spaced around said shaft, i. each of said tubes having a free end disposed generally radially outwardly at least as far as the outer portions of said blades, ii. each of said tubes having a generally longitudinally extending opening formed therethrough, the longitudinally extending opening of each of said tubes being disposed in fluid communication with said channel whereby fluid may flow from said channel, through said openings and out of the free ends of said tubes, and iii. each of said tubes being mounted on said shaft to form an included angle between the longitudinal axis of the opening adjacent the free end thereof and the longitudinal axis of the shaft of not less than 35* nor more than 75*.
Claim 6
Dependent Claim
246 words
In an apparatus for dispersing fluid in a liquid in combination with a container for holding said liquid: a. a propeller shaft mounted for rotation in said container, said shaft being closed at one end and having a channel therein communicating at the other end of said Shaft with the fluid to be dispersed; b. means for rotating said shaft; c. at least one series of diametrically aligned screw-propeller blades equidistantly spaced around said shaft extending radially from said shaft, said blades having an angle of pitch from their leading edges to their trailing edges which is acute to a plane disposed normal to the longitudinal axis of said shaft; and d. a plurality of diametrically aligned aspirator tubes disposed proximate to said blades equidistantly spaced around said shaft, i. each of said tubes having a free end disposed generally radially outwardly at least as far as the outer portions of said blades, ii. each of said tubes having a generally longitudinally extending opening formed therethrough, the longitudinally extending opening of each of said tubes being disposed in fluid communication with said channel whereby fluid may flow from said channel, through said openings and out of the free ends of said tubes, and iii. each of said tubes being mounted on said shaft to form an included angle between the longitudinal axis of the opening adjacent the free end thereof and the longitudinal axis of the shaft of not less than 35* nor more than 75*.
Claim 7
Dependent Claim
284 words
A propeller for dispersing fluid in a liquid comprising: a. a propeller shaft mounted for rotation, said shaft being closed at one end and having a channel therein for communicating at the other end of said shaft with the fluid to be dispersed; b. a first tubular propeller hub mounted on said shaft; c. three diametrically aligned equidistantly spaced screw-propeller blades mounted on said first hub and extending radially therefrom, said blades having an angle of pitch from their leading edges to their trailing edges which is acute to the longitudinal axis of said shaft; d. a duct formed between said of said blades and extending into said channel; e. a hollow aspirator tube mounted in each of said ducts, i. each of said tubes having a free end disposed generally radially outwardly at least as far as the outer portions of said blades, ii. each of said tubes having a generally longitudinally extending opening formed therethrough, the longitudinally extending opening of said tubes being disposed in fluid communication with said channel whereby fluid may flow from said channel, through said openings and out of the free ends of said tubes, iii. each of said tubes being mounted on said shaft to form an included angle between the longitudinal axis adjacent the free end thereof and the longitudinal axis of the shaft of not less than 35* nor more than 75*, and iv. each of said tubes also being mounted on said shaft to form an included angle between the longitudinal axis of the opening adjacent the free end thereof and a radially extending plane having the longitudinal axis of said shaft lying therein of not less than one-half degree nor more than 3*.
Claim 8
Dependent Claim
284 words
A propeller for dispersing fluid in a liquid comprising: a. a propeller shaft mounted for rotation, said shaft being closed at one end and having a channel therein for communicating at the other end of said shaft with the fluid to be dispersed; b. a first tubular propeller hub mounted on said shaft; c. three diametrically aligned equidistantly spaced screw-propeller blades mounted on said first hub and extending radially therefrom, said blades having an angle of pitch from their leading edges to their trailing edges which is acute to the longitudinal axis of said shaft; d. a duct formed between said of said blades and extending into said channel; e. a hollow aspirator tube mounted in each of said ducts, i. each of said tubes having a free end disposed generally radially outwardly at least as far as the outer portions of said blades, ii. each of said tubes having a generally longitudinally extending opening formed therethrough, the longitudinally extending opening of said tubes being disposed in fluid communication with said channel whereby fluid may flow from said channel, through said openings and out of the free ends of said tubes, iii. each of said tubes being mounted on said shaft to form an included angle between the longitudinal axis adjacent the free end thereof and the longitudinal axis of the shaft of not less than 35* nor more than 75*, and iv. each of said tubes also being mounted on said shaft to form an included angle between the longitudinal axis of the opening adjacent the free end thereof and a radially extending plane having the longitudinal axis of said shaft lying therein of not less than one-half degree nor more than 3*.
Claim 9
Dependent Claim
52 words
A propeller as described in claim 5 above in which each of said tubes is mounted on said shaft to form an included angle between the longitudinal axis of the opening adjacent the free end thereof and the longitudinal axis of the shaft of not less than 53* nor more than 65*.
Claim 10
Dependent Claim
46 words
A propeller as described in claim 5 above in which each of said tubes is mounted on said shaft to form an included angle between the longitudinal axis of the opening adjacent the free end thereof and the longitudinal axis of the shaft of approximately 58*.
Claim 11
Dependent Claim
68 words
A propeller as described in Claim 5 above including a second tubular propeller hub mounted on said shaft and constructed as said first tubular propeller hub and having like mounted screw-propeller blades and aspirator tubes, said second tubular hub being spaced from said first tubular propeller hub such that it will pick up a columnated current of liquid produced by the blades on said first propelle tubular hub.
Claim 12
Dependent Claim
229 words
A propeller for dispersing fluid in a liquid, said propeLler comprising: a. a propeller shaft mounted for rotation, said shaft being closed at one end and having a channel therein for communicating at the other end of said shaft with the fluid to be dispersed; b. a plurality of diametrically aligned equidistantly spaced screw-propeller blades spaced around said shaft and extending radially therefrom, said blades having an angle of pitch from their leading edges to their trailing edges which is acute to a plane disposed normal to the longitudinal axis of said shaft; and c. a plurality of diametrically aligned aspirator tubes disposed proximate to said blades equidistantly spaced around said shaft, i. each of said tubes having a free end disposed generally radially outwardly at least as far as the outer portions of said blades, ii. each of said tubes having a generally longitudinally extending opening formed therethrough, the longitudinally extending opening of each of said tubes being disposed in fluid communication with said channel whereby fluid may flow from said channel through said openings and out of the free ends of said tubes, and iii. each of said tubes being mounted on said shaft to form an included angle between the longitudinal axis of the opening adjacent the free end thereof and the longitudinal axis of the shaft of not less than 35* nor more than 75*.
Claim 13
Dependent Claim
229 words
A propeller for dispersing fluid in a liquid, said propeLler comprising: a. a propeller shaft mounted for rotation, said shaft being closed at one end and having a channel therein for communicating at the other end of said shaft with the fluid to be dispersed; b. a plurality of diametrically aligned equidistantly spaced screw-propeller blades spaced around said shaft and extending radially therefrom, said blades having an angle of pitch from their leading edges to their trailing edges which is acute to a plane disposed normal to the longitudinal axis of said shaft; and c. a plurality of diametrically aligned aspirator tubes disposed proximate to said blades equidistantly spaced around said shaft, i. each of said tubes having a free end disposed generally radially outwardly at least as far as the outer portions of said blades, ii. each of said tubes having a generally longitudinally extending opening formed therethrough, the longitudinally extending opening of each of said tubes being disposed in fluid communication with said channel whereby fluid may flow from said channel through said openings and out of the free ends of said tubes, and iii. each of said tubes being mounted on said shaft to form an included angle between the longitudinal axis of the opening adjacent the free end thereof and the longitudinal axis of the shaft of not less than 35* nor more than 75*.
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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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |