US3610531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for sprinkler irrigation
Assignee: Individual
•
Filing: 1968-10-16
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Granted: 1971-10-05
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Expires: 1988-10-16
Abstract
Abstract Sprinkler irrigation in which water is flowed intermittently through sprinkler apparatus during each watering shift. This ''''on-off'''' application of water results in an increased rate of infiltration of the water into the soil. Mobile sprinkler apparatus is used to illustrate the intermittent application of the water. The apparatus is provided with means for draining residual water so that movement occurs when empty and during the nonflow periods. The water can also be used as a means of selfpropulsion of the mobile sprinkler apparatus. Energy from water flow is stored in a spring energized by a water driven ram for use during periods of nonflow of water.
Inventors
- 👤 Lennart G Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:49
CPC Classifications
A; A01; A01G; A01G25/00; A01G25/09; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/22
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
98 words
Sprinkler irrigation apparatus comprising: a sprinkler line having a plurality of water discharge heads; means mounting the sprinkler line for movement over the ground; means for supplying an intermittent water supply to said sprinkler line for discharge through said heads; self-propulsion means mounted on said sprinkler line and being responsive to the intermittent nature of the flow of water to said sprinkler line for moving the latter; and means for draining the sprinkler line during intermittent periods of nonsupply of water to permit movement of said sprinkler line free from the weight of residual water in the line.
Claim 2
Dependent Claim
98 words
Sprinkler irrigation apparatus comprising: a sprinkler line having a plurality of water discharge heads; means mounting the sprinkler line for movement over the ground; means for supplying an intermittent water supply to said sprinkler line for discharge through said heads; self-propulsion means mounted on said sprinkler line and being responsive to the intermittent nature of the flow of water to said sprinkler line for moving the latter; and means for draining the sprinkler line during intermittent periods of nonsupply of water to permit movement of said sprinkler line free from the weight of residual water in the line.
Claim 3
Dependent Claim
81 words
Sprinkler irrigation apparatus in accordance with claim 1, wherein said self-propulsion means comprises a hydraulic ram having a piston connected in fluid communication with the water supplied to said sprinkler line and a spring mounted for tensioning by movement of said piston, the flow of water to said sprinkler line connected to cause movement of said piston and tensioning of said spring, the tensioned spring providing sufficient stored energy for propulsion of the sprinkler line during periods of nonflow of water.
Claim 4
Dependent Claim
21 words
Sprinkler irrigation apparatus in accordance with claim 2 wherein said spring is mounted within said ram for compression by said piston.
Claim 5
Dependent Claim
43 words
Sprinkler irrigation apparatus in accordance with claim 2 and including an auxiliary conduit in communication with said ram for the optional supply of motivating fluid for said ram for actuation of said ram during periods of nonsupply of water to said sprinkler line.
Claim 6
Dependent Claim
141 words
A sprinkler irrigation apparatus comprising: a sprinkler line having a plurality of water discharge heads; means mounting the sprinkler line for movement over the ground; means coupled with the sprinkler line for moving the same; means supplying an intermittent water supply to said sprinkler line for discharge through said heads; individually operative valves for each of said water discharge heads, the valves of only even-numbered water discharge heads being set to open when the sprinkler line is at a first location and the valves of only odd-numbered water discharge heads being set to open after movement of said sprinkler line to a second location to produce a triangular irrigation pattern; and means for draining the sprinkler line during intermittent periods of nonsupply of water to permit movement of said sprinkler line free from the weight of residual water in the line.
Claim 7
Dependent Claim
141 words
A sprinkler irrigation apparatus comprising: a sprinkler line having a plurality of water discharge heads; means mounting the sprinkler line for movement over the ground; means coupled with the sprinkler line for moving the same; means supplying an intermittent water supply to said sprinkler line for discharge through said heads; individually operative valves for each of said water discharge heads, the valves of only even-numbered water discharge heads being set to open when the sprinkler line is at a first location and the valves of only odd-numbered water discharge heads being set to open after movement of said sprinkler line to a second location to produce a triangular irrigation pattern; and means for draining the sprinkler line during intermittent periods of nonsupply of water to permit movement of said sprinkler line free from the weight of residual water in the line.
Claim 8
Dependent Claim
31 words
Sprinkler irrigation apparatus in accordance with claim 5 wherein the valves of said sprinkler heads are adapted to operate in response to the intermittent flow of water to said sprinkler line.
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) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |