Patent US3918264A successfully refreshed from Google Patents.
US3918264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Irrigation system
Assignee: Individual
•
Filing: 1974-02-06
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Granted: 1975-11-11
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Expires: 1994-02-06
Abstract
Abstract A control system for an irrigation system for use in controlling the flow of water from a main irrigation ditch to a branch field ditch comprising a first control device disposed in the main ditch beyond the branch ditch in the direction of flow of the water and a second control device disposed in the branch ditch. The water flowing in the main ditch is diverted by the first control device in the main ditch, which is normally closed, through the second control device in the branch ditch, which is normally open, and into the branch ditch, until such time as timing means in the first control device opens the first control device and the second control device is subsequently closed.
Inventors
- 👤 Don L Bradshaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:32
CPC Classifications
E; E02; E02B; E02B13/00; E02B13/02
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
402 words
In an irrigation system, a control system for use in controlling the flow of water from a main irrigation ditch to a branch field ditch comprising the combination: a. a first control device comprising a conduit disposed centrally in said main ditch beyond said branch ditch in the direction of flow of said water with the longitudinal axis thereof substantially parallel to the axis of said main ditch, a seal secured to the interior surface of said conduit and extending therearound, valve means mounted in said conduit for axial and pivotal movement, said valve means being moveable axially from a first position in sealing contact with said seal to a second position spaced therefrom where said valve means may be pivoted from a normally closed position, whereby flow of water in said main ditch is substantially precluded, to an open position, whereby flow of water in said main ditch is allowed, means to axially move said valve means, means to pivot said valve means, and timer means to actuate said means to axially move said valve means; b. a second control device comprising a conduit disposed centrally in said branch ditch with the longitudinal axis thereof substantially parallel to the axis of said branch ditch, a seal secured to the interior surface of said conduit and extending therearound, valve means mounted in said conduit for axial and pivotal movement, said valve means being axially moveable from a first position spaced from said seal where said valve means may be pivoted from a normally open position, whereby flow of water from said main ditch through said conduit and through said branch ditch is allowed, to a closed position, whereby flow in said branch ditch is substantially precluded, to a second position in sealing contact with said seal, means to pivot said valve means, and means to axially move said valve means; and c. means joining said means to pivot said valve means of said first control device to actuate said means to pivot said valve means of said second control device; whereby water flowing in said main ditch is diverted by said first control device in said main ditch, which is normally closed, through said second control device in said branch ditch, which is normally open, and into said branch ditch, until said timer means of said first control device opens said first control device and said second control device is subsequently closed.
Claim 2
Dependent Claim
402 words
In an irrigation system, a control system for use in controlling the flow of water from a main irrigation ditch to a branch field ditch comprising the combination: a. a first control device comprising a conduit disposed centrally in said main ditch beyond said branch ditch in the direction of flow of said water with the longitudinal axis thereof substantially parallel to the axis of said main ditch, a seal secured to the interior surface of said conduit and extending therearound, valve means mounted in said conduit for axial and pivotal movement, said valve means being moveable axially from a first position in sealing contact with said seal to a second position spaced therefrom where said valve means may be pivoted from a normally closed position, whereby flow of water in said main ditch is substantially precluded, to an open position, whereby flow of water in said main ditch is allowed, means to axially move said valve means, means to pivot said valve means, and timer means to actuate said means to axially move said valve means; b. a second control device comprising a conduit disposed centrally in said branch ditch with the longitudinal axis thereof substantially parallel to the axis of said branch ditch, a seal secured to the interior surface of said conduit and extending therearound, valve means mounted in said conduit for axial and pivotal movement, said valve means being axially moveable from a first position spaced from said seal where said valve means may be pivoted from a normally open position, whereby flow of water from said main ditch through said conduit and through said branch ditch is allowed, to a closed position, whereby flow in said branch ditch is substantially precluded, to a second position in sealing contact with said seal, means to pivot said valve means, and means to axially move said valve means; and c. means joining said means to pivot said valve means of said first control device to actuate said means to pivot said valve means of said second control device; whereby water flowing in said main ditch is diverted by said first control device in said main ditch, which is normally closed, through said second control device in said branch ditch, which is normally open, and into said branch ditch, until said timer means of said first control device opens said first control device and said second control device is subsequently closed.
Claim 3
Dependent Claim
15 words
The control system according to claim 1, wherein each said seal is an annular seal.
Claim 4
Dependent Claim
30 words
The control system according to claim 1, wherein each said valve means is closed in position substantially perpendicular to the axis of said conduit and in abutment with said seal.
Claim 5
Dependent Claim
25 words
The control system according to claim 1, wherein each said valve means is open in a position substantially parallel to the axis of said conduit.
Claim 6
Dependent Claim
53 words
The control system according to claim 1, wherein each of said conduits is provided with slots therein defined at diametrically opposite sides of said conduit, one edge of said seal being adjacent said slots, and wherein each of said valve means for said first and second control devices is mounted for movement therein.
Claim 7
Dependent Claim
29 words
The control system according to claim 5, wherein the longitudinal axes of said slots in each said conduit are parallel to and planar with the axis of said conduit.
Claim 8
Dependent Claim
20 words
The control system according to claim 6, wherein said slots in each said conduit are positioned at one end thereof.
Claim 9
Dependent Claim
35 words
The control system according to claim 7, wherein each said valve means comprises a rotatable plate having journals at diametrically opposite sides which are mounted in their respective slots for axial and rotatable movement therein.
Claim 10
Dependent Claim
117 words
The control system according to claim 8, wherein said means of said first control device to axially move said valve means thereof comprises yoke bracket arms the ends of the bifurcations of which are provided with slots, said slots being received by said journals of said rotatable plate and said bifurcations being pivotally fixed to means on said conduit, a handle secured to the upper portion of said yoke arms, and a hinge bar substantially parallel to the axis of said conduit one end of which is slidably and rotatably secured to the upper portion of said yoke arms and handle and the other end of which is received by latch means cooperating with said timer means.
Claim 11
Dependent Claim
49 words
The control system according to claim 9, wherein said means of said first control device to pivot said valve means thereof comprises an arm with one end thereof being secured to one of said journals of said rotatable plate and the other end thereof being provided with a handle.
Claim 12
Dependent Claim
154 words
The control system according to claim 10, wherein said means of said second control device to pivot said valve means thereof comprises a bracket having spaced arms the ends of which are fixedly secured to said journals of said rotatable plate such that when said plate is in the open position and substantially parallel to the axis of said conduit, said bracket is in the upright position, and a primary trip arm having a holding catch fixedly secured thereto pivotally mounted to means on said conduit such that when said plate is in the fully open position and substantially parallel to the axis of said conduit said bracket is retained in its upright position by said holding catch, said means joining said means to pivot said valve means of said first control device to actuate said means to pivot said valve means of said second control device being attached to said primary trip arm.
Claim 13
Dependent Claim
207 words
The control system according to claim 11, wherein said means of said second control device to axially move said valve means thereof, comprises yoke bracket arms the ends of the bifurcations of which are provided with slots, said slots being received by said journals of said rotatable plate and said bifurcations being pivotally fixed to first means on said conduit, a handle pivotally secured to second means on said conduit and carrying a locking arm, a secondary trip arm carrying a locking element and being pivotally mounted to said second means on said conduit such that said locking element will mate with said locking arm, a hinge bar pivotally joining said handle to the upper portion of said yoke arms, spring means biasing said handle to assure rotation of said handle, hinge bar and yoke arms, and a secondary trip chord joining said means of said second control device to pivot said valve means thereof and said secondary trip arm, whereby said secondary trip arm is rotated when said valve means is moving from its open to closed position and said locking element is released from said locking arm, causing said handle, and thus said yoke arms, to pivot and, therefore, said valve means to move axially.
Claim 14
Dependent Claim
64 words
The control system according to claim 12, wherein said means joining said means to pivot said valve means of said first control device to actuate said means to pivot said valve means of said second control device comprises a cable joining said arm secured to one of said journals of said firSt control device to said primary trip arm of said second control device.
Claim 15
Dependent Claim
310 words
In an irrigation system, a control device for use in controlling the flow of water through a ditch thereof comprising a conduit disposed centrally in said ditch with the longitudinal axis thereof substantially parallel to the axis of said ditch, a seal secured to the interior surface of said conduit and extending therearound, valve means mounted in said conduit for axial and pivotal movement, said valve means being moveable axially from a first position in sealing contact with said seal to a second position spaced therefrom where said valve means may be pivoted from a normally closed position, whereby flow of water in said ditch is substantially precluded, to an open position, whereby flow of water in said ditch is allowed, means to axially move said valve means, means to pivot said valve means, and timer means to actuate said means to axially move said valve means, wherein said conduit is provided with slots therein defined at diametrically opposite sides of said conduit and at one end thereof, one edge of said seal being adjacent said slots and wherein said valve means comprises a rotatable plate having journals at diametrically opposite sides which are mounted in said slots for axial and rotatable movement therein, and wherein the means to axially move said valve means thereof comprises yoke bracket arms the ends of the bifurcations of which are provided with slots, said slots being received by said journals of said rotatable plate and said bifurcations being pivotally fixed to means on said conduit, a handle secured to the upper portion of said yoke arms, and a hinge bar substantially parallel to the axis of said conduit one end of which is slidably and rotatably secured to the upper portion of said yoke arms and handle and the other end of which is received by latch means cooperating with said timer means.
Claim 16
Dependent Claim
310 words
In an irrigation system, a control device for use in controlling the flow of water through a ditch thereof comprising a conduit disposed centrally in said ditch with the longitudinal axis thereof substantially parallel to the axis of said ditch, a seal secured to the interior surface of said conduit and extending therearound, valve means mounted in said conduit for axial and pivotal movement, said valve means being moveable axially from a first position in sealing contact with said seal to a second position spaced therefrom where said valve means may be pivoted from a normally closed position, whereby flow of water in said ditch is substantially precluded, to an open position, whereby flow of water in said ditch is allowed, means to axially move said valve means, means to pivot said valve means, and timer means to actuate said means to axially move said valve means, wherein said conduit is provided with slots therein defined at diametrically opposite sides of said conduit and at one end thereof, one edge of said seal being adjacent said slots and wherein said valve means comprises a rotatable plate having journals at diametrically opposite sides which are mounted in said slots for axial and rotatable movement therein, and wherein the means to axially move said valve means thereof comprises yoke bracket arms the ends of the bifurcations of which are provided with slots, said slots being received by said journals of said rotatable plate and said bifurcations being pivotally fixed to means on said conduit, a handle secured to the upper portion of said yoke arms, and a hinge bar substantially parallel to the axis of said conduit one end of which is slidably and rotatably secured to the upper portion of said yoke arms and handle and the other end of which is received by latch means cooperating with said timer means.
Claim 17
Dependent Claim
44 words
The control device according to claim 14, wherein said means to pivot said valve means thereof comprises an arm with one end thereof being secured to one of said journals of said rotatable plate and the other end thereof being provided with a handle.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |