US3815525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for introducing liquid into root zone of plants in soil
Assignee: Individual
•
Filing: 1972-10-05
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Granted: 1974-06-11
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Expires: 1992-10-05
Abstract
Abstract Liquid under high pressure is injected into the root zone of plants in soil by the action of accumulated impact energy in the form of continuous pulse jets. A device for effecting injection of liquid comprises a chamber adapted to accumulated the liquid, and a nozzle disposed in the lower portion of the chamber and adapted to discharge liquid as pulse jets. A plunger is accommodated in the chamber, the plunger being reciprocated to transmit an impact to the liquid and being connected to a resilient compression member adapted to accumulate energy.
Inventors
- 👤 B Zandman
- 👤 B Telyatnikov
- 👤 N Kholin
- 👤 A Ryazanov
- 👤 N Sorokin
- 👤 S Dobrokhotov
- 👤 V Sokolov
- 👤 N Zaitsev
- 👤 A Kainson
- 👤 J Razygraev
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:08
CPC Classifications
A; A01; A01C; A01C23/00; A01C23/02; A01C23/023; A01C23/026
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
283 words
A device for injecting liquid into the root zone of plants under pulse pressure comprising: at least one cylinder having an outlet nozzle mounted at the lower end of said cylinder and adapted to be positioned above the soil surface; a chamber disposed in said cylinder adjacent to said nozzle thereabove and adapted for periodical accumulation of liquid; a valve disposed in said nozzle and adapted to prevent premature discharging of the liquid from said chamber; means in fluid communication with said chamber for supplying the liquid thereto at an adjustable rate of flow; a non-return valve disposed in said means for supplying the liquid and adapted to prevent the return flow of the liquid; a plunger disposed in said cylinder and being capable of reciprocation for periodical entrance into said chamber in order to deliver an impact to the liquid accumulated in said chamber, whereby high pulse pressure is developed in said chamber, said pressure being utilized to discharge the accumulated liquid through said nozzle in the form of a highspeed pulse jet; means including a force transmitting element for ensuring reciprocation of said plunger; said force transmitting element comprising a compressible resilient member disposed in the upper portion of said cylinder and adapted to accumulate energy; the accumulated energy further accelerating said plunger when the latter enters said chamber to deliver an impact to the liquid accumulated in said chamber; said resilient member being mounted on one end upon said plunger and on the other end upon a stop disposed in said cylinder, said resilient member exerting a force on said plunger throughout the reciprocation thereof; said stop being adjustable to adjust an amount of energy accumulated in said resilient member.
Claim 2
Independent Claim
283 words
A device for injecting liquid into the root zone of plants under pulse pressure comprising: at least one cylinder having an outlet nozzle mounted at the lower end of said cylinder and adapted to be positioned above the soil surface; a chamber disposed in said cylinder adjacent to said nozzle thereabove and adapted for periodical accumulation of liquid; a valve disposed in said nozzle and adapted to prevent premature discharging of the liquid from said chamber; means in fluid communication with said chamber for supplying the liquid thereto at an adjustable rate of flow; a non-return valve disposed in said means for supplying the liquid and adapted to prevent the return flow of the liquid; a plunger disposed in said cylinder and being capable of reciprocation for periodical entrance into said chamber in order to deliver an impact to the liquid accumulated in said chamber, whereby high pulse pressure is developed in said chamber, said pressure being utilized to discharge the accumulated liquid through said nozzle in the form of a highspeed pulse jet; means including a force transmitting element for ensuring reciprocation of said plunger; said force transmitting element comprising a compressible resilient member disposed in the upper portion of said cylinder and adapted to accumulate energy; the accumulated energy further accelerating said plunger when the latter enters said chamber to deliver an impact to the liquid accumulated in said chamber; said resilient member being mounted on one end upon said plunger and on the other end upon a stop disposed in said cylinder, said resilient member exerting a force on said plunger throughout the reciprocation thereof; said stop being adjustable to adjust an amount of energy accumulated in said resilient member.
Claim 3
Dependent Claim
126 words
A device as claimed in claim 1, wherein said means for ensuring reciprocation of said plunger comprise an elongated bar having a projection at its lower end, the other end of said bar being bent, a spring embracing said bar and resting upon said projection to move said bar to a lower initial position, a traverse member being connected to said bent end of said bar, means for imparting motion to said traverse member along with said bar, an additional bar being pivotally connected by one of its ends to said bent end of said elongated bar, rollers being disposed at the free end of said additional bar, and a locking clamp attached to said plunger and periodically interacting with said rollers to reciprocate said plunger.
Claim 4
Dependent Claim
71 words
A device as claimed in claim 2, wherein said means for ensuring reciprocation of said plunger comprise a wedge-shaped projection secured to said cylinder, the chamfer surface of which is directed outwardly of said traverse member towards said nozzle to ensure disengagement of said rollers from said locking clamp with the result that under action of said compression resilient member said plunger moves downward to deliver an impact to the liquid.
Claim 5
Dependent Claim
18 words
A device as claimed in claim 1, in which said compression resilient member comprises a compression coil spring.
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) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |