Patent US4411555A successfully refreshed from Google Patents.
US4411555A
Expired / Lapsed
US
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Draining, irrigating and dispersing mass
Assignee: Individual
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Filing: 1980-06-17
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Granted: 1983-10-25
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Expires: 2000-06-17
Abstract
Abstract The mass for the drainage, irrigation and lightening of soils is constituted by hollow elements (1) delimiting capillar or semi-capillar passages. The elements (1) are bulked up so that they can rest in an irregular fashion one relative to the others by providing inbetween spaces of variable shapes and dimensions. Drainage, irrigation, lightening, enrichment of soils.
Inventors
- 👤 Monique L. S. Minvielle
- 👤 Albert H. F. Mazoin
- 👤 Robert P. Brun
- 👤 Sylvain V. L. Chevanne
- 👤 Jacques L. A. See
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:55
CPC Classifications
E; E02; E02B; E02B11/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
119 words
A mass for draining, irrigating or lightening of various soils, said mass being composed of hollow elements of various sizes, shapes, wall thicknesses and rigidity, said hollow elements internally defining through open-ended capillary or semi-capillary passages, said mass further being composed of soil in which said hollow elements are dispersed in mutual contact and so oriented relative to one another as to provide between adjacent hollow elements spaces of various shapes and dimensions which combine with the capillary or semi-capillary passages of the hollow elements to form a porous mass for drainage, irrigation or lightening of the soil, the hollow elements including elements that comprise two hollow hemispheres and means for joining said hollow hemispheres to form hollow spheres.
Claim 2
Dependent Claim
119 words
A mass for draining, irrigating or lightening of various soils, said mass being composed of hollow elements of various sizes, shapes, wall thicknesses and rigidity, said hollow elements internally defining through open-ended capillary or semi-capillary passages, said mass further being composed of soil in which said hollow elements are dispersed in mutual contact and so oriented relative to one another as to provide between adjacent hollow elements spaces of various shapes and dimensions which combine with the capillary or semi-capillary passages of the hollow elements to form a porous mass for drainage, irrigation or lightening of the soil, the hollow elements including elements that comprise two hollow hemispheres and means for joining said hollow hemispheres to form hollow spheres.
Claim 3
Dependent Claim
22 words
A mass according to claim 1 wherein said joining means includes tubes protruding from each hollow hemisphere and interlockable with one another.
Claim 4
Dependent Claim
33 words
A mass according to claim 2 wherein at least some of the hollow elements include internal protrusions and wherein the protrusions are hollow and internally communicate with the insides of the hollow elements.
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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) | 1986-10-24 | 1987-04-25 | 1987-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-24 | 1991-04-25 | 1991-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-24 | 1995-04-25 | 1995-10-25 | $7700.00 | Window Closed / Lapsed |