US3748840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic hydraulic system for a hay wagon
Assignee: Owatonna Manufacturing Co Inc
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Filing: 1972-10-12
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Granted: 1973-07-31
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Expires: 1992-10-12
Abstract
Abstract An improved hay harvester, stacker and transporter employing a simplified hydraulic system in which the components thereof will be operated in a desired sequence through the operation of a single control handle or valve.
Inventors
- 👤 G Kanengieter
- 👤 G Barry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:27
CPC Classifications
A; A01; A01D; A01D85/00; A01D85/001; A01D85/004
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
310 words
A hay harvester and stacker comprising, a frame adapted to be connected to and drawn by a tractor having a hydraulic supply and a power take-off thereon, a pivotally mounted crop pick-up device carried by said frame and pivoted thereon between a ground engaging and an elevated transport position, a linear hydraulic motor means mounted on the frame and connected to the pick-up device for pivoting the pick-up device on the frame between ground elevating and crop engaging position, orbit motor means connected to the crop pick-up device for rotating the pick-up device to pick up crops thereby, a blower including a blower pipe mounted on the frame and associated with the crop pick-up device to receive crops picked up therefrom and to blow the crops through the blower pipe, said blower being adapted to be connected to and powered by the power take-off of the tractor, an enclosed wagon type stack former having a frame with the wheel support mounting the same with the frame being pivotally connected to the first frame and supporting the end of the same remote from the tractor and with the blower pipe positioned adjacent the top of the enclosed stack former, a distribution hood assembly mounted on the end of the blower pipe including an orbit motor thereon adapted to pivot and rotate the hood simultaneously to distribute crops from the blower pipe uniformly within the enclosure of the stack former, and a hydraulic circuit means including a pair of hydraulic lines defining a continuous flow circuit with a single reversing valve and control lever operating the same positioned in the flow lines and connected to the hydraulic supply, said hydraulic circuit being connected to the orbit motors of the pick-up device and the distribution hood in a series circuit and to one side of the actuator raising and lowering the pick-up device.
Claim 2
Dependent Claim
310 words
A hay harvester and stacker comprising, a frame adapted to be connected to and drawn by a tractor having a hydraulic supply and a power take-off thereon, a pivotally mounted crop pick-up device carried by said frame and pivoted thereon between a ground engaging and an elevated transport position, a linear hydraulic motor means mounted on the frame and connected to the pick-up device for pivoting the pick-up device on the frame between ground elevating and crop engaging position, orbit motor means connected to the crop pick-up device for rotating the pick-up device to pick up crops thereby, a blower including a blower pipe mounted on the frame and associated with the crop pick-up device to receive crops picked up therefrom and to blow the crops through the blower pipe, said blower being adapted to be connected to and powered by the power take-off of the tractor, an enclosed wagon type stack former having a frame with the wheel support mounting the same with the frame being pivotally connected to the first frame and supporting the end of the same remote from the tractor and with the blower pipe positioned adjacent the top of the enclosed stack former, a distribution hood assembly mounted on the end of the blower pipe including an orbit motor thereon adapted to pivot and rotate the hood simultaneously to distribute crops from the blower pipe uniformly within the enclosure of the stack former, and a hydraulic circuit means including a pair of hydraulic lines defining a continuous flow circuit with a single reversing valve and control lever operating the same positioned in the flow lines and connected to the hydraulic supply, said hydraulic circuit being connected to the orbit motors of the pick-up device and the distribution hood in a series circuit and to one side of the actuator raising and lowering the pick-up device.
Claim 3
Dependent Claim
31 words
The hay harvester and stack of claim 1 in which the motors of the pick-up device and the distribution head reverse with reversal of the control lever of the reversing valve.
Claim 4
Dependent Claim
50 words
The hay harvester and stacker of claim 1 in which the single reversing valve with the control handle for the hydraulic circuit in one position will sequence the pick-up device to lower to a working position with subsequent operation of the orbit motors for the pick-up device and distribution hood.
Claim 5
Dependent Claim
35 words
The hay harvester and stacker of claim 3 and including an adjustable valve in the hydraulic circuit connected in parallel with the orbit motor for the distribution head to vary the speed of the same.
Claim 6
Dependent Claim
57 words
The hay harvester and stacker of claim 4 and including a restrictive check valve positioned in the hydraulic circuit in series relationship with the orbit motors of the distribution head and pick-up device and permitting slow speed reversed operation of the orbit motor for the pick-up device with raising of the pick-up Device for cleaning the same.
Claim 7
Dependent Claim
46 words
The hay harvester and stacker of claim 1 in which the linear hydraulic motor means are a pair of linear hydraulic actuators one of which is connected in slave relationship with the other and with the other connected at one extremity to the hydraulic circuit means.
Claim 8
Dependent Claim
45 words
The hay harvester and stacker of claim 1 in which the single reversing valve is a three position valve having a center off position with reversed flows through the continuous flow circuit in opposite directions for the positions to either side of the off position.
Claim 9
Dependent Claim
182 words
The hay harvester and stacker of claim 7 in which the hydraulic circuit includes a restrictive check valve in series circuit with the orbital motors of the pick-up device and distribution head and in which the linear hydraulic motor means is positioned in parallel circuit therewith such that with one position on the handle flow will be directed through the orbital motors and restrictive check valve unrestricted to the linear hydraulic motor means in the return line of the hydraulic circuit to provide a sequence of operation in which the linear hydraulic motor means is operative in one direction to lower the pick-up device with subsequent operation of the orbital motors at a full rate of operation, and in which the control valve will be operative in another position to direct flow to the linear hydraulic motors of the pick-up device to raise the same with restricted flow through the chedk valve to reverse the flow through the orbital motors and effect the slow rate of reverse rotation and cleaning of the pick-up device with the device raised in an elevated position.
Claim 10
Dependent Claim
79 words
The hay harvester and stacker of claim 1 in which the enclosed wagon type stack former includes chain drive means positioned over the frame for removing the stacked crop therein and power operated doors including motor means for operating the same positioned on one end of the enclosure for opening the enclosure to remove the stack therefrom, and including further motive means for pivoting the frame of the stack former on the wheel support relative to the first frame.
Claim 11
Dependent Claim
61 words
The hay harvester and stacker of claim 9 and including an additional hydraulic circuit means including a reversing valve adapted to connect the additional circuit means to the hydraulic supply and connecting the motors of the doors and frame together with the motor of the chain type drive in a parallel flow circuit with the hydraulic supply and second control valve.
Claim 12
Dependent Claim
67 words
The hay harvester and stacker of claim 10 in which the pivot motors for the frame and the door on the stack former are linear hydraulic actuators connected in parallel in the second hydraulic circuit and in which the motor for the chains in an orbit motor connected in series with the hydraulic control valve and including a check valve means in series with the orbit motor.
Claim 13
Dependent Claim
33 words
The hay harvester and stacker of claim 11 in which the check valve includes a manual override for permitting selective reversible rotation of the orbit motor driving the chains for the stack former.
Claim 14
Dependent Claim
264 words
A hay harvester and stacker comprising, a wheeled frame member having an enclosed box thereon adapted to be connected to and drawn by a tractor having a hydraulic supply and a power take-off thereon, a pivotally mounted crop pick-up device carried by said frame and pivoted thereon between a ground engaging and an elevated transport position, a linear hydraulic motor means mounted on the frame and connected to the pick-up device for pivoting the pick-up device on the frame between ground elevating and crop engaging position, orbit motor means connected to the crop pick-up device for rotating the pick-up device to pick up crops thereby, a blower including a blower discharge pipe mounted on the frame and associated with the crop pick-up device to receive crops picked up therefrom and to blow the crops through the blower pipe, said blower being adapted to be connected to and powered by the power take-off of the tractor, a dIstribution hood assembly mounted on the end of the discharge pipe including an orbit motor thereon adapted to pivot and rotate the hood simultaneously to distribute crops from the discharge pipe uniformly within the enclosed box, and a hydraulic circuit means including a pair of hydraulic lines defining a continuous flow circuit with a single reversing valve and control lever operating the same positioned in the flow lines and connected to the hydraulic supply, said hydraulic circuit being connected to the orbit motors of the pick-up device and the distribution hood in a series circuit and to one side of the actuator raising and lowering the pick-up device.
Claim 15
Dependent Claim
264 words
A hay harvester and stacker comprising, a wheeled frame member having an enclosed box thereon adapted to be connected to and drawn by a tractor having a hydraulic supply and a power take-off thereon, a pivotally mounted crop pick-up device carried by said frame and pivoted thereon between a ground engaging and an elevated transport position, a linear hydraulic motor means mounted on the frame and connected to the pick-up device for pivoting the pick-up device on the frame between ground elevating and crop engaging position, orbit motor means connected to the crop pick-up device for rotating the pick-up device to pick up crops thereby, a blower including a blower discharge pipe mounted on the frame and associated with the crop pick-up device to receive crops picked up therefrom and to blow the crops through the blower pipe, said blower being adapted to be connected to and powered by the power take-off of the tractor, a dIstribution hood assembly mounted on the end of the discharge pipe including an orbit motor thereon adapted to pivot and rotate the hood simultaneously to distribute crops from the discharge pipe uniformly within the enclosed box, and a hydraulic circuit means including a pair of hydraulic lines defining a continuous flow circuit with a single reversing valve and control lever operating the same positioned in the flow lines and connected to the hydraulic supply, said hydraulic circuit being connected to the orbit motors of the pick-up device and the distribution hood in a series circuit and to one side of the actuator raising and lowering the pick-up device.
Claim 16
Dependent Claim
259 words
A hay harvester and stacker comprising, a wheeled frame member having an enclosed box thereon adapted to be directed to and drawn by a tractor having a hydraulic supply in a power take-off thereon, a pivotally mounted crop harvester mechanism carried by said frame and pivoted thereon between a ground engaging and an elevated transport position, a linear hydraulic motor means mounted on the frame and connected to the harvester mechanism for pivoting the harvester mechanism on the frame between ground elevating and crop engaging position, orbit motor means connected to the crop harvester mechanism for operating the crop harvester mechanism, a blower including a blower discharge pipe mounted on the frame and associated with the crop harvester mechanism to receive crops picked up therefrom and to blow the crops through the blower pipe, said blower being adapted to be connected to and powered by the power take-off of the tractor, a distribution hood assembly mounted on the end of the discharge pipe including an orbit motor thereon adapted to pivot and rotate the hood simultaneously to distribute crops from the discharge pipe uniformly within the enclosure, and a hydraulic circuit means including a pair of hydraulic lines defining a continuous flow circuit with a single reversing valve and control lever operating the same positioned in the flow lines and connected to the hydraulic supply, said hydraulic circuit being connected to the orbit motors of the harvester mechanism and the distribution hood in a series circuit and to one side of the actuator raising and lowering the harvester mechanism.
Claim 17
Dependent Claim
259 words
A hay harvester and stacker comprising, a wheeled frame member having an enclosed box thereon adapted to be directed to and drawn by a tractor having a hydraulic supply in a power take-off thereon, a pivotally mounted crop harvester mechanism carried by said frame and pivoted thereon between a ground engaging and an elevated transport position, a linear hydraulic motor means mounted on the frame and connected to the harvester mechanism for pivoting the harvester mechanism on the frame between ground elevating and crop engaging position, orbit motor means connected to the crop harvester mechanism for operating the crop harvester mechanism, a blower including a blower discharge pipe mounted on the frame and associated with the crop harvester mechanism to receive crops picked up therefrom and to blow the crops through the blower pipe, said blower being adapted to be connected to and powered by the power take-off of the tractor, a distribution hood assembly mounted on the end of the discharge pipe including an orbit motor thereon adapted to pivot and rotate the hood simultaneously to distribute crops from the discharge pipe uniformly within the enclosure, and a hydraulic circuit means including a pair of hydraulic lines defining a continuous flow circuit with a single reversing valve and control lever operating the same positioned in the flow lines and connected to the hydraulic supply, said hydraulic circuit being connected to the orbit motors of the harvester mechanism and the distribution hood in a series circuit and to one side of the actuator raising and lowering the harvester mechanism.
Claim 18
Dependent Claim
31 words
The hay harvester and stacker of claim 14 in which the orbit motors of the harvester mechanism and distribution hood reverse in direction of rotation with raising of the harvester mechanism.
Claim 19
Dependent Claim
57 words
The hay harvester and stacker of claim 15 in which the hydraulic circuit means includes a check valve restricting flow of operation to the orbit motors with reversal of the control lever to provide for full speed operation of the linear hydraulic motor raising the harvester mechanism and reduced reversed speed of rotation of the orbit motors.
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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |