US4383536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Straw spreader
Assignee: Individual
•
Filing: 1981-11-25
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Granted: 1983-05-17
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Expires: 2001-11-25
Abstract
Abstract Straw spreaders are normally controlled manually by the operator and it is therefore extremely difficulty to continually adjust the speed of the spreader so that the straw layer is reasonably even because the density of the straw varies continuously across the average field. The present device includes a rheostat sensor at the straw walker that controls the speed of the orbital motor driving the spreader blade assemblies. This results in a relatively even spread of straw taking place regardless of the variation in straw density as the motor slows down under a light load and speeds up when heavy straw is encountered. The operator can, of course, control the on/off functions from the cab if, for example, it is desired to spread alternate swaths.
Inventors
- 👤 Guy Delorme
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:56
CPC Classifications
A; A01; A01D; A01D41/00; A01D41/12; A01D41/127; A01D41/1274; A01F; A01F12/00; A01F12/40
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
109 words
A straw spreader assembly for use with a combine, thresher or the like which include straw discharge devices such as straw walkers; comprising in combination straw spreader means situated in the path of the discharging straw, means to drive said straw spreader means and means cooperating with the straw discharge device to monitor the amount of straw being discharged by said device, said means cooperating with the straw discharge device being operatively connected to said means to drive said straw spreader means to vary the speed of said straw spreader means depending upon the amount of straw being discharged, thereby maintaining a substantially even layer of straw being spread.
Claim 2
Dependent Claim
109 words
A straw spreader assembly for use with a combine, thresher or the like which include straw discharge devices such as straw walkers; comprising in combination straw spreader means situated in the path of the discharging straw, means to drive said straw spreader means and means cooperating with the straw discharge device to monitor the amount of straw being discharged by said device, said means cooperating with the straw discharge device being operatively connected to said means to drive said straw spreader means to vary the speed of said straw spreader means depending upon the amount of straw being discharged, thereby maintaining a substantially even layer of straw being spread.
Claim 3
Dependent Claim
37 words
The invention according to claim 1 in which said means to drive said straw spreader means includes a hydraulic motor operatively connected to said straw spreader means and hydraulic pump means operatively connected to said hydraulic motor.
Claim 4
Dependent Claim
37 words
The invention according to claim 1 in which said straw spreader means includes at least one rotating spreader blade assembly mounted upon the combine, thresher or the like in the path of the straw being discharged thereby.
Claim 5
Dependent Claim
37 words
The invention according to claim 2 in which said straw spreader means includes at least one rotating spreader blade assembly mounted upon the combine, thresher or the like in the path of the straw being discharged thereby.
Claim 6
Dependent Claim
58 words
The invention according to claim 1 in which said means cooperating with the straw discharge device includes a mechanical gauging device across the path of the discharge device, and hydraulic control means operated by said gauging device, said hydraulic control means being operatively connected to said means to drive said straw spreader means to vary the speed thereof.
Claim 7
Dependent Claim
53 words
The invention according to claim 2 in which said means cooperating with the straw discharge device includes a mechanical gauging device across the path of the discharge device, and hydraulic control means operated by said gauging device, said hydraulic control means being operatively connected to said hydraulic motor to vary the speed thereof.
Claim 8
Dependent Claim
53 words
The invention according to claim 3 in which said means cooperating with the straw discharge device includes a mechanical gauging device across the path of the discharge device, and hydraulic control means operated by said gauging device, said hydraulic control means being operatively connected to said hydraulic motor to vary the speed thereof.
Claim 9
Dependent Claim
53 words
The invention according to claim 4 in which said means cooperating with the straw discharge device includes a mechanical gauging device across the path of the discharge device, and hydraulic control means operated by said gauging device, said hydraulic control means being operatively connected to said hydraulic motor to vary the speed thereof.
Claim 10
Dependent Claim
24 words
The invention according to claim 6 in which said hydraulic control means includes an electrically operated hydraulic valve operatively connected to said hydraulic motor.
Claim 11
Dependent Claim
24 words
The invention according to claim 8 in which said hydraulic control means includes an electrically operated hydraulic valve operatively connected to said hydraulic motor.
Claim 12
Dependent Claim
75 words
The invention according to claims 5 or 7 in which, said mechanical gauging device includes a baffle extending transversely across said discharge device and being pivotally supported by the leading edge thereof, the straw passing under said baffle and partially rotating same around the pivotal support thereof, and an hydraulic flow control valve operatively connected to said pivotal support for operation thereby and being operatively connected to said means to drive said straw spreader means.
Claim 13
Dependent Claim
70 words
The invention according to claims 6, 8 or 9 which, said mechanical gauging device includes a baffle extending transversely across said discharge device and being pivotally supported by the leading edge thereof, the straw passing under said baffle and partially rotating same around the pivotal support thereof, and an hydraulic flow control valve operatively connected to said pivotal support for operation thereby and being operatively connected to said hydraulic valve.
Claim 14
Dependent Claim
68 words
The invention according to claim 10 in which, said mechanical gauging device includes a baffle extending transversely across said discharge device and being pivotally supported by the leading edge thereof, the straw passing under said baffle and partially rotating same around the pivotal support thereof, and an hydraulic flow control valve operatively connected to said pivotal support for operation thereby and being operatively connected to said hydraulic valve.
Claim 15
Dependent Claim
59 words
The invention according to claim 2 in which said means cooperating with the straw discharge device includes a mechanical gauging device across the path of the discharge device, and a flow control valve operated by said gauging device, said flow control valve being operatively connected to said means to drive said straw spreader means to vary the speed thereof.
Claim 16
Dependent Claim
34 words
The invention according to claim 4 which includes an electrically operated solenoid control valve operatively connected between said pump and said flow control valve to selectively control the operation of said flow control valve.
Claim 17
Dependent Claim
61 words
The invention according to claims 14 or 15 in which said mechanical gauging device includes a baffle extending transversely across said discharge device and being pivotally supported by the leading edge thereof, the straw passing under said baffle and partially rotating same around the pivotal support thereof, said pivotal support being operatively connected to said flow control valve for operating same.
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) | 1986-05-16 | 1986-11-15 | 1987-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-16 | 1990-11-15 | 1991-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-16 | 1994-11-15 | 1995-05-17 | $7700.00 | Window Closed / Lapsed |