US3658305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aeration device
Assignee: HUSKEE-BILT Corp
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Filing: 1969-05-08
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Granted: 1972-04-25
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Expires: 1989-05-08
Abstract
Abstract Aeration rotor mounted in pit containing liquid for receiving animal waste. Rotor aerates liquid in pit. Rotor includes structure for entrapping air from above liquid and releasing it beneath surface of liquid. Rotor includes structure for lifting liquid above surface thereof and then spilling it back. Deflector structure directs liquid, carried around rotor and dropping behind rotor, toward rotor bottom while permitting foam accumulations behind rotor to pass through rotor to prevent foam build-up.
Inventors
- 👤 N Keith Newtson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:48
CPC Classifications
A; A01; A01C; A01C3/00; A01C3/02; A01C3/026; B; B01; 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: 15
Claim 1
Independent Claim
256 words
In combination: a pit for containing a body of liquid for receiving animal waste; an aeration rotor including blade means, extending outwardly relative to the axis of the rotor, for introducing air into the liquid contained in said pit; means mounting said aeration rotor for immersion of the rotor and the blade means into said liquid to a maximum depth less than the radius of said rotor; the outside edges of said blade means defining the outside of said rotor; a hood partially enclosing said rotor; said hood including a lower rear deflector portion extending downwardly below said rotor axis and inwardly toward said rotor, behind the rotor, and terminating above the rotor bottom; said blade means including means for carrying liquid from said body of liquid around with the blade means during rotation of the rotor; said deflector portion comprising means for directing carry-over liquid, carried from said body of liquid around with said blade means during rotation of the rotor, toward the bottom portion of the rotor; said hood having a rear edge at the bottom of said defleCtor portion and a front edge on the other side of the rotor from said rear edge; said rotor including blade means extending downwardly below both the front and rear edges of the hood; and means, including means on said hood and on said deflector portion, for permitting foam accumulating on the liquid surface behind the rotor and on the outside of the hood to pass through the bottom portion of the rotor during rotation thereof.
Claim 2
Dependent Claim
256 words
In combination: a pit for containing a body of liquid for receiving animal waste; an aeration rotor including blade means, extending outwardly relative to the axis of the rotor, for introducing air into the liquid contained in said pit; means mounting said aeration rotor for immersion of the rotor and the blade means into said liquid to a maximum depth less than the radius of said rotor; the outside edges of said blade means defining the outside of said rotor; a hood partially enclosing said rotor; said hood including a lower rear deflector portion extending downwardly below said rotor axis and inwardly toward said rotor, behind the rotor, and terminating above the rotor bottom; said blade means including means for carrying liquid from said body of liquid around with the blade means during rotation of the rotor; said deflector portion comprising means for directing carry-over liquid, carried from said body of liquid around with said blade means during rotation of the rotor, toward the bottom portion of the rotor; said hood having a rear edge at the bottom of said defleCtor portion and a front edge on the other side of the rotor from said rear edge; said rotor including blade means extending downwardly below both the front and rear edges of the hood; and means, including means on said hood and on said deflector portion, for permitting foam accumulating on the liquid surface behind the rotor and on the outside of the hood to pass through the bottom portion of the rotor during rotation thereof.
Claim 3
Dependent Claim
47 words
In the combination of claim 1 wherein: said lower rear deflector portion terminates above the maximum immersion level for said rotor; and said passage-permitting means comprises means for permitting said foam to pass through the bottom portion of the rotor at all immersion depths of the rotor.
Claim 4
Dependent Claim
23 words
In the combination of claim 2 wherein: said front edge of the hood is located above the maximum immersion level for the rotor.
Claim 5
Dependent Claim
35 words
In the combination of claim 2 wherein: the lower end of said deflector portion extends below the rotor axis a distance equal to the rotor radius minus one and one-half times said maximum immersion depth.
Claim 6
Dependent Claim
43 words
In the combination of claim 4 wherein: said maximum immersion depth is less than one-half the radius of the rotor; and said lower end of the deflector portion extends below the rotor axis a distance greater than one-fourth the radius of the rotor.
Claim 7
Dependent Claim
244 words
In combination: an aeration rotor including blade means, extending outwardly relative to the axis of the rotor, for introducing air into a body of liquid contained in a pit and immersible in said body of liquid to a maximum depth less than the radius of said rotor; the outside edges of said blade means defining the outside of said rotor; a hood partially enclosing said rotor; said hood including a lower rear deflector portion extending downwardly below said rotor axis and inwardly toward said rotor, behind the rotor, and terminating above the rotor bottom; said blade means including means for carrying liquid from said body of liquid around with the blade means during rotation of the rotor; said deflector portion comprising means for directing carry-over liquid, carried from said body of liquid around with said blade means during rotation of the rotor, toward the bottom portion of the rotor; said hood having a rear edge at the bottom of said deflector portion and a front edge on the other side of the rotor from said rear edge; said rotor including blade means extending downwardly below both the front and rear edges of the hood; and means on said hood and on said deflector portion for permitting foam accumulating on the liquid surface behind the rotor and on the outside of the hood to pass through the bottom portion of the rotor during rotation thereof when the rotor is immersed in said body of liquid.
Claim 8
Dependent Claim
244 words
In combination: an aeration rotor including blade means, extending outwardly relative to the axis of the rotor, for introducing air into a body of liquid contained in a pit and immersible in said body of liquid to a maximum depth less than the radius of said rotor; the outside edges of said blade means defining the outside of said rotor; a hood partially enclosing said rotor; said hood including a lower rear deflector portion extending downwardly below said rotor axis and inwardly toward said rotor, behind the rotor, and terminating above the rotor bottom; said blade means including means for carrying liquid from said body of liquid around with the blade means during rotation of the rotor; said deflector portion comprising means for directing carry-over liquid, carried from said body of liquid around with said blade means during rotation of the rotor, toward the bottom portion of the rotor; said hood having a rear edge at the bottom of said deflector portion and a front edge on the other side of the rotor from said rear edge; said rotor including blade means extending downwardly below both the front and rear edges of the hood; and means on said hood and on said deflector portion for permitting foam accumulating on the liquid surface behind the rotor and on the outside of the hood to pass through the bottom portion of the rotor during rotation thereof when the rotor is immersed in said body of liquid.
Claim 9
Dependent Claim
45 words
In the combination of claim 6 wherein: said lower rear deflector portion terminates above the maximum immersion level for said rotor; and said passage-permitting means comprises means for permitting said foam to pass through the bottom portion of the rotor at all immersion depths thereof.
Claim 10
Dependent Claim
23 words
In the combination of claim 7 wherein: said front edge of the hood is located above the maximum immersion level for the rotor.
Claim 11
Dependent Claim
35 words
In the combination of claim 7 wherein: the lower end of said deflector portion extends below the rotor axis a distance equal to the rotor radius minus one and one-half times said maximum immersion depth.
Claim 12
Dependent Claim
43 words
In the combination of claim 9 wherein: said maximum immersion depth is less than one-half the radius of the rotor; and said lower end of the deflector portion extends below the rotor axis a distance greater than one-fourth the radius of the rotor.
Claim 13
Independent Claim
155 words
A method for aerating a body of liquid, contained in a pit for receiving animal waste, with a rotor having blade means extending outwardly relative to the axis of the rotor, said method comprising the steps of: immersing said rotor and said rotor blades in said liquid to a maxImum depth less than the radius of said rotor; partially enclosing the rear of said rotor with a hood; rotating said rotor to introduce air into said liquid; carrying liquid from said body of liquid around with said blade means during rotation of the rotor; deflecting carry-over liquid, carried from said body of liquid around with said rotor to the rear of the rotor during rotation thereof, toward the bottom portion of the rotor; and permitting foam, accumulating on the liquid surface behind the rotor and on the outside of the hood, to pass without obstruction through the bottom portion of the rotor during rotation thereof.
Claim 14
Independent Claim
155 words
A method for aerating a body of liquid, contained in a pit for receiving animal waste, with a rotor having blade means extending outwardly relative to the axis of the rotor, said method comprising the steps of: immersing said rotor and said rotor blades in said liquid to a maxImum depth less than the radius of said rotor; partially enclosing the rear of said rotor with a hood; rotating said rotor to introduce air into said liquid; carrying liquid from said body of liquid around with said blade means during rotation of the rotor; deflecting carry-over liquid, carried from said body of liquid around with said rotor to the rear of the rotor during rotation thereof, toward the bottom portion of the rotor; and permitting foam, accumulating on the liquid surface behind the rotor and on the outside of the hood, to pass without obstruction through the bottom portion of the rotor during rotation thereof.
Claim 15
Dependent Claim
32 words
A method as recited in claim 11 wherein said last recited step comprises permitting said passage of foam through the bottom portion of the rotor at all immersion depths of the rotor.
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) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |