Patent US3581945A successfully refreshed from Google Patents.
US3581945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for distributing material onto the ground
Assignee: Blackstone and Co Ltd
•
Filing: 1969-06-12
•
Granted: 1971-06-01
•
Expires: 1989-06-12
Abstract
Abstract Distributing apparatus for distributing particulate material, for example fertilizer, on the ground includes a mobile frame and a recirculatory conveyor system mounted on the frame and extending transversely of the direction of travel of the apparatus. The material is carried in a hopper on the frame and the material is conveyed from the hopper along a first conveyor with discharge outlets to a return conveyor which conveys material back to the hopper. The conveyor system is pivotable from an operative into an inoperative position.
Inventors
- 👤 William Lawrence Savage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:30
CPC Classifications
A; A01; A01C; A01C15/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
119 words
Distributing apparatus for distributing particulate material on the ground comprising a mobil frame, storage means for said material carried by the frame, a first conveyor arranged to extend transversely to the direction of travel of the apparatus in an operating position and to receive said material from the storage means, a second conveyor for receiving excess material from the first conveyor and conveying the material back towards the storage means, and discharge outlets in the first conveyor through which the material is to be distributed from the first conveyor, the first cOnveyor being movable from said transversely extending operative position to a inoperative position in which the width of the apparatus is relatively less than in the operative position.
Claim 2
Dependent Claim
119 words
Distributing apparatus for distributing particulate material on the ground comprising a mobil frame, storage means for said material carried by the frame, a first conveyor arranged to extend transversely to the direction of travel of the apparatus in an operating position and to receive said material from the storage means, a second conveyor for receiving excess material from the first conveyor and conveying the material back towards the storage means, and discharge outlets in the first conveyor through which the material is to be distributed from the first conveyor, the first cOnveyor being movable from said transversely extending operative position to a inoperative position in which the width of the apparatus is relatively less than in the operative position.
Claim 3
Dependent Claim
34 words
Distributing apparatus according to claim 1 comprising closure mean for automatically interrupting the flow of material from the storage means to the first conveyor when the first conveyor is moved into the inoperative position.
Claim 4
Dependent Claim
45 words
Distributing apparatus according to claim 1 wherein the mobile frame includes a main frame which supports the storage means, and a transversely extending subframe which supports the first and second conveyors and which is pivotable with respect to the main frame into the inoperative position.
Claim 5
Dependent Claim
23 words
Distributing apparatus according to claim 1 wherein the first and second conveyors are supported in cantilever from the mobile frame on a subframe.
Claim 6
Dependent Claim
51 words
Distributing apparatus according to claim 1 wherein the conveyors are pivotable about a vertical axis into the inoperative position in which the conveyors lie generally parallel to the direction of travel of the apparatus, and drive means for the conveyors is disconnected when the conveyors are moved into the inoperative position.
Claim 7
Dependent Claim
47 words
Distributing apparatus according to claim 1 wherein the first conveyor is arranged to be held in the operative position by releasable lockin means, the locking means being in the form of a resilient detect whereby the conveyor can move into the inoperative position on encountering an obstruction.
Claim 8
Dependent Claim
38 words
Distributing apparatus according to claim 1 wherein the conveying capacity of the second conveyor is at least equal to the conveying capacity of the first conveyor, whereby the conveyors can be operated when the discharge outlets are closed.
Claim 9
Dependent Claim
67 words
Distributing apparatus according to claim 1 wherein the second conveyor is inclined upwardly towards the upper part of the storage means from the end of the first conveyor remote from the storage means, and a stay is attached to the mobile frame and is connected to the outer ends of the first and second conveyors and is directed so as to bisect the angle between said conveyors.
Claim 10
Dependent Claim
35 words
Distributing apparatus according to claim 1 wherein control means for controlling the closing of the discharge outlets comprises a slide movable axially of the first conveyor, and the slide is operable by a fluid-operated ram.
Claim 11
Dependent Claim
48 words
Distributing apparatus according to claim 1 comprising two of each of said first and second conveyors, one pair of first and second conveyors being directed transversely of the direction of travel in the opposite direction to the other pair of first and second conveyors in an operating position.
Claim 12
Dependent Claim
29 words
Distributing apparatus according to claim 10, wherein one pair of said conveyors is movable from an operative into an inoperative position independently of the other pair of said conveyors.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |