Patent US3285280A successfully refreshed from Google Patents.
Patent US4065926A successfully refreshed from Google Patents.
US4065926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Subterranean irrigation system
Assignee: Individual
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Filing: 1975-07-18
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Granted: 1978-01-03
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Expires: 1995-07-18
Abstract
Abstract An irrigation system employing, in part, a coarse screen or grid of flexible material having internal interconnecting passages for the flow of water or the like therethrough, the grid beng interred under the area of ground which is to be watered. Orifices are distributed along the interconnecting passages to release the water by gravity feed from a source or reservoir.
Inventors
- 👤 Edison R. Brandt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:01
CPC Classifications
A; A01; A01G; A01G25/00; A01G25/06; E; E02; E02B; E02B13/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
179 words
An irrigation system for selectively conveying and applying a liquid from a source of such liquid to an area of ground to which such liquid is to be applied while avoiding interference with the above-ground use of such area, said irrigation system comprising: a plurality of flow passages connected relative to one another so far as to form an array of said flow passages having an entrance thereto, the array having an area substantially equal to such area of ground, said plurality of flow passages being formed from two sandwiched sheets of plastic periodically sealed together at various common non-overlapping areas to form a resultant grid pattern of non-sealed interconnected passages which form said array of said interconnected flow passages, said plurality of flow passages having means defining apertures therein of a size and quantity as to effect the substantially even distribution of such liquid to such ground area, said plurality of flow passages being entirely interred within such ground area; and means for connecting such array of said plurality of flow passages to such source of such liquid.
Claim 2
Dependent Claim
179 words
An irrigation system for selectively conveying and applying a liquid from a source of such liquid to an area of ground to which such liquid is to be applied while avoiding interference with the above-ground use of such area, said irrigation system comprising: a plurality of flow passages connected relative to one another so far as to form an array of said flow passages having an entrance thereto, the array having an area substantially equal to such area of ground, said plurality of flow passages being formed from two sandwiched sheets of plastic periodically sealed together at various common non-overlapping areas to form a resultant grid pattern of non-sealed interconnected passages which form said array of said interconnected flow passages, said plurality of flow passages having means defining apertures therein of a size and quantity as to effect the substantially even distribution of such liquid to such ground area, said plurality of flow passages being entirely interred within such ground area; and means for connecting such array of said plurality of flow passages to such source of such liquid.
Claim 3
Dependent Claim
37 words
The irrigation system of claim 1 in which said system further includes means for regulating the flow of liquid from such source of liquid to said flow passages, said regulating means being located along said connecting means.
Claim 4
Dependent Claim
123 words
An irrigation system for applying a liquid from a source of such liquid to an area of ground, said system comprising: a sheet of flexible grid material formed from two sheets of plastic sandwiched together and selectively sealed together at certain specific common non-overlapping areas to form a resultant grid of non-sealed areas of the two sheets to form interconnected flow passages for such liquid, said sheet of flexible grid material having said sealed areas being removed, said sheet being interred below such area of ground and including means defining apertures along said flow passages for permitting the exit of such liquid from said grid material to such ground area; and means for connecting said flexible grid material to such source of liquid.
Claim 5
Dependent Claim
123 words
An irrigation system for applying a liquid from a source of such liquid to an area of ground, said system comprising: a sheet of flexible grid material formed from two sheets of plastic sandwiched together and selectively sealed together at certain specific common non-overlapping areas to form a resultant grid of non-sealed areas of the two sheets to form interconnected flow passages for such liquid, said sheet of flexible grid material having said sealed areas being removed, said sheet being interred below such area of ground and including means defining apertures along said flow passages for permitting the exit of such liquid from said grid material to such ground area; and means for connecting said flexible grid material to such source of liquid.
Claim 6
Dependent Claim
23 words
The irrigation system of claim 3 further including means for regulating flow of liquid from such source of liquid to such grid material.
Claim 7
Dependent Claim
46 words
The irrigation system of claim 3 in which portions of the perimeters of said certain specific common non-overlapping areas are not sealed so as to form outlets for such liquid flowing through said grid of interconnected flow passages when said areas are removed from said sheet.
Claim 8
Dependent Claim
13 words
The irrigation system of claim 3 in which said sealed areas are polygons.
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) | 1981-01-02 | 1981-07-04 | 1982-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-02 | 1985-07-04 | 1986-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-02 | 1989-07-04 | 1990-01-03 | $7700.00 | Window Closed / Lapsed |