US3785573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material discharge and spreading apparatus for fluent material
Assignee: Perkins Engines Group Ltd
•
Filing: 1972-07-24
•
Granted: 1974-01-15
•
Expires: 1992-07-24
Abstract
Abstract A manure spreader with a rotor mounted on a rotatable shaft which extends lengthwise of a manure container. The rotor is moved lengthwise of the shaft during rotation by a chain extending in two runs round two rotatable pocket wheels carried by the shaft. One of the pocket wheels is driven to move the rotor along the shaft.
Inventors
- 👤 A Crawford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:35
CPC Classifications
A; A01; A01C; A01C3/00; A01C3/06; A01C3/063
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
149 words
Material discharge apparatus comprising a container, a discharge shaft mounted within the container for rotation about an axis extending lengthwise of the shaft, means for rotating the shaft about said axis, a material discharge element mounted on the shaft, the material discharge element being drivably coupled to the shaft for rotation therewith, and a traversing mechanism to move the material discharge element lengthwise with respect to the shaft while the shaft is rotating, the traversing mechanism comprising a flexible tensile member mounted on the shaft and rotatable therewith about said axis extending lengthwise of the shaft, a rotatable drive member mounted on the shaft, the flexible tensile member being connected to the material discharge element and drivably engaging the drive member, and a drive mechanism to rotate the drive member relative to the shaft whereby the material discharge element is pulled lengthwise of the shaft by the tensile member.
Claim 2
Dependent Claim
149 words
Material discharge apparatus comprising a container, a discharge shaft mounted within the container for rotation about an axis extending lengthwise of the shaft, means for rotating the shaft about said axis, a material discharge element mounted on the shaft, the material discharge element being drivably coupled to the shaft for rotation therewith, and a traversing mechanism to move the material discharge element lengthwise with respect to the shaft while the shaft is rotating, the traversing mechanism comprising a flexible tensile member mounted on the shaft and rotatable therewith about said axis extending lengthwise of the shaft, a rotatable drive member mounted on the shaft, the flexible tensile member being connected to the material discharge element and drivably engaging the drive member, and a drive mechanism to rotate the drive member relative to the shaft whereby the material discharge element is pulled lengthwise of the shaft by the tensile member.
Claim 3
Dependent Claim
41 words
The material discharge apparatus of claim 1 in which said flexible tensile member is arranged in two runs and extends round said rotatable drive member at one end of said runs and round a second rotatable member at the other end.
Claim 4
Dependent Claim
31 words
The material discharge apparatus of claim 2 in which one of said two runs is disposed externally of said discharge shaft and the other run is disposed internally of said shaft.
Claim 5
Dependent Claim
62 words
The material discharge apparatus of claim 1 in which said drive mechanism comprises a drive shaft, means for power rotating the drive shaft, a first gear on the drive shaft, and a second gear rotatably mounted on the discharge shaft so as to be in constant mesh with the first gear the second gear being drivably coupled to the rotatable drive member.
Claim 6
Dependent Claim
26 words
The material discharge apparatus of claim 4 wherein said drive shaft and said discharge shaft are adapted to be driven from a common power input connection.
Claim 7
Dependent Claim
63 words
The material discharge apparatus of claim 5 wherein said means for power rotating the drive shaft includes a ratio changer operative to change the ratio of the drive train to the drive shaft relative to the ratio of the drive train to the discharge shaft whereby the direction of movement of the material discharge element relative to the discharge shaft may be changed.
Claim 8
Dependent Claim
34 words
The material discharge apparatus of claim 6 wherein said ratio changer comprises two different ratio drives to said drive shaft, and a clutch for selectively clutching either of said drives to said drive shaft.
Claim 9
Dependent Claim
35 words
The material discharge apparatus of claim 1 wherein said flexible tensile member is constituted by a stud link or open link chain and said rotatable drive member is in the form of a pocket wheel.
Claim 10
Dependent Claim
26 words
The material discharge apparatus of claim 7 wherein said clutch is constructed so as to slip at a torque slightly greater than its normal working torque.
Claim 11
Dependent Claim
49 words
The maTerial discharge apparatus of claim 6 wherein said material discharge element comprises a hub constructed for sliding engagement with the discharge shaft, a plate carried by the hub, and material tear out formations projecting axially with respect to said discharge shaft provided on both sides of the plate.
Claim 12
Dependent Claim
50 words
The material discharge apparatus of claim 1 wherein said material discharge element comprises a plate lying in a plane at right angles to the axis of rotation of the discharge shaft and at least one pair of flails pivotally mounted on opposite sides of the plate adjacent its outer periphery.
References Cited (Backward Citations)
US3229984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |