Patent US3858809A successfully refreshed from Google Patents.
US3858809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid manure tank spreading rotor
Assignee: Allied Products Corp
•
Filing: 1973-11-02
•
Granted: 1975-01-07
•
Expires: 1993-11-02
Abstract
Abstract A liquid manure spreader has an aft lower opening in a tank to feed a spreading rotor for distribution of liquid manure in a spray pattern. The spreading rotor housing is pivotally mounted to the tank so that it may be swung down for cleaning after use. This eliminates residual manure that can freeze during overnight out of doors storage. The rotor housing has a stepped opening to insure a uniform spray pattern. In an alternate embodiment the rotor feeds tangential pipes which deliver the liquid manure for injection directly into the ground.
Inventors
- 👤 Paul A Luthman
- 👤 Thomas R Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:20
CPC Classifications
A; A01; A01C; A01C23/00; A01C23/001; A01C23/003; Y; Y10; Y10S; Y10S111/00; Y10S111/925
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
157 words
A liquid manure spreader comprising: a tank mounted for ground movement and being fillable with liquid manure; means for controlling flow of liquid manure from the bottom of said tank; a rotor comprising an annular housing and a rotatable rotor element for distributing liquid manure radially outward, said rotoR having means permitting distribution of said liquid manure from said housing; means for driving said rotor, said means including a rotary mechanical interconnection between a point on said tank and said rotor, the drive train between said points being flexible to permit said rotor housing to be swung down; and means for pivotally mounting said rotor assembly between a first position in which the plane of rotation of said rotor element is generally underneath said flow control means on said tank and a second position wherein said rotor housing is swung away from said flow control means for cleaning out residual manure in said tank and rotor housing.
Claim 2
Dependent Claim
157 words
A liquid manure spreader comprising: a tank mounted for ground movement and being fillable with liquid manure; means for controlling flow of liquid manure from the bottom of said tank; a rotor comprising an annular housing and a rotatable rotor element for distributing liquid manure radially outward, said rotoR having means permitting distribution of said liquid manure from said housing; means for driving said rotor, said means including a rotary mechanical interconnection between a point on said tank and said rotor, the drive train between said points being flexible to permit said rotor housing to be swung down; and means for pivotally mounting said rotor assembly between a first position in which the plane of rotation of said rotor element is generally underneath said flow control means on said tank and a second position wherein said rotor housing is swung away from said flow control means for cleaning out residual manure in said tank and rotor housing.
Claim 3
Dependent Claim
79 words
A liquid manure spreader as in claim 1 wherein said rotor driving means comprises: a hydraulic motor mounted on said rotor housing and having a rotary output shaft connected to said rotor element; a hydraulic pump positioned at a point remote from said hydraulic motor; and hydraulic lines interconnecting said hydraulic pump and motor, said hydraulic lines being flexible at least in the area adjacent said rotor housing so as to permit said rotor housing to be swung downward.
Claim 4
Dependent Claim
105 words
A liquid manure spreader as in claim 1 wherein said mechanical drive comprises: a power input shaft journaled for rotation on said tank about a generally horizontal axis; a right-angle gearbox mounted on said rotor housing and having one shaft driving said rotor element and the other extending generally parallel to said input drive shaft when the rotor housing is in its first position underneath said flow control means; and a flexible shaft assembly interconnecting said drive shaft and said right-angle gearbox permitting said rotor element to be driven in said first position and permitting free swinging of said rotor housing to said second position.
Claim 5
Dependent Claim
78 words
A liquid manure spreader as in claim 3 wherein said flexible shaft assembly comprises: a shaft comprising inner and outer elements telescoped into one another and having mutually engaging splines so that the elements are restrained from rotating relative to one another but are permitted to slide, thereby varying the axial length thereof; and universal joints respectively connecting one of the elements to the shaft on said tank and the other elements to the shaft on said gearbox.
Claim 6
Dependent Claim
145 words
A liquid manure spreader as in claim 1 wherein said means for pivotally mounting said rotor housing comprises: a shaft secured to said rotor housing and extending to the side of said tank; means for journaling said shaft relative to said tank to permit swinging of said rotor housing; an arm extending radially from the end of said shaft to the side of said tank, said lever having a slight degree of flexibility in a direction parallel to the axis of said shaft; and a latch in the path of movement of said arm, said latch having a ramp and a notch adjacent the ramp whereby the arm is received and held in said notch for maintaining said rotor housing in said first position, said arm being movable out of said notch to permit said rotor housing to be swung downward to said second position.
Claim 7
Dependent Claim
52 words
A liquid manure spreader as in claim 1 further comprising: mating annular surfaces on the bottom of said tank and the upper perimeter of said rotor housing permitting sealing engagement of said rotor housing with said tank in said first position; and means for latching said rotor housing in said first position.
Claim 8
Dependent Claim
38 words
A liquid manure spreader as in claim 6 wherein said latch means comprises at least one over-center latch for interconnecting the rotor housing to said tank at a point remote from the pivotal mounting for said rotor housing.
Claim 9
Dependent Claim
56 words
A liquid manure spreader as in claim 1 wherein said rotor element rotates in a given direction and wherein said housing defines a discharge opening and in which said opening has a series of predetermined steps so that the flow discharge area increases in the direction of movement of the rotor element Relative to said opening.
Claim 10
Dependent Claim
26 words
A liquid manure spreader as in claim 8 wherein said rotor element comprises a plate and a plurality of bars extending radially outward from said plate.
Claim 11
Dependent Claim
69 words
A liquid manure spreader as in claim 1 adapted for direct injection into the ground wherein: said means for distributing said manure comprises a plurality of tangential tubelike outlets formed in the outer periphery of said rotor housing; and said liquid manure spreader further comprises means for directly injecting liquid manure into the ground and including flexible conduits extending from said rotor housing tangential outlets to a discharge point.
Claim 12
Dependent Claim
70 words
A liquid manure spreader as in claim 1 wherein said flow control means comprises: a plunger positioned adjacent the bottom of said tank and receivable in an opening in the bottom of the tank to prevent flow therefrom; a shaft extending vertically from said plunger through an upper opening in said tank; and means for selectively vertically displacing said shaft so as to permit and block flow from said tank.
Claim 13
Dependent Claim
29 words
A liquid manure spreader as in claim 11 wherein said selective displacing means comprises a hydraulic actuator having its output connected to said plunger for displacement of said shaft.
Claim 14
Dependent Claim
86 words
A liquid manure spreader as in claim 12 further comprising: a hydraulic motor having a rotary output shaft connected to said rotor element; a control system having a source of pressurized hydraulic fluid and positioned at a location remote from said motor housing; hydraulic lines interconnecting said system and said motor and said actuator, said control system delivering hydraulic fluid to said rotor housing before said actuator is energized, thereby initiating rotation of said rotor before said flow control means permits flow into said rotor housing.
Claim 15
Dependent Claim
38 words
A liquid manure spreader as in claim 13 wherein said hydraulic lines connect said motor and actuator in parallel to said control system and said control system comprises a flow restricting orifice in the line to said actuator.
Claim 16
Dependent Claim
30 words
A liquid manure spreader as in claim 14 wherein said control system further comprises a variable area orifice in the hydraulic line connected to both said motor and said actuator.
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) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |