US5035080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Element for above-ground cultivation
Assignee: Saint Gobain Isover SA France
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Filing: 1990-07-03
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Granted: 1991-07-30
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Expires: 2010-07-03
Abstract
Abstract The invention relates to techniques for above-ground cultivation, and, more precisely, cultivation elements designated with the name of "substrate". The cultivation cubes according to the invention are comprised of mineral fibers that are interconnected and whose distribution is without preferred order, no matter what direction they are viewed from. The substrates according to the invention promote better colonization of the material by the roots.
Inventors
- 👤 Bernard Kafka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:43
CPC Classifications
A; A01; A01G; A01G24/00; A01G24/10; A01G24/18; A01C; A01C1/00; A01C1/04; A01C1/046; A01G24/40; A01G24/44; A01G31/00; A01G24/50; Y; Y02; Y02P; Y02P60/00; Y02P60/20; Y02P60/21
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
97 words
A substrate for the growth of plants in the field of aboveground cultivation, comprised of a mineral fiber material, in which the fibers are interconnected by means of a binder, wherein the fibers of the material are randomly arranged without preferred order, from all said substrate formed by the steps of: collecting individual fibers having an adhesive applied thereto into a sheet of nonwoven fabric having fibers running in a substantially longitudinal direction, compressing the fabric in the longitudinal direction of the fibers to a density of 20-30 kg/m 3 , and permitting said adhesive to set.
Claim 2
Dependent Claim
97 words
A substrate for the growth of plants in the field of aboveground cultivation, comprised of a mineral fiber material, in which the fibers are interconnected by means of a binder, wherein the fibers of the material are randomly arranged without preferred order, from all said substrate formed by the steps of: collecting individual fibers having an adhesive applied thereto into a sheet of nonwoven fabric having fibers running in a substantially longitudinal direction, compressing the fabric in the longitudinal direction of the fibers to a density of 20-30 kg/m 3 , and permitting said adhesive to set.
Claim 3
Dependent Claim
25 words
The substrate according to claim 1, in which the ratio of length before to after compression of the nonwoven fabric is between 1:1.5 and 1:10.
Claim 4
Dependent Claim
19 words
The substrate according to claim 1, comprised of glass fibers with an average diameter between 2 and 9 micrometers.
Claim 5
Dependent Claim
19 words
The substrate according to claim 1, comprised of glass fibers with an average diameter between 4 and 7 micrometers.
Claim 6
Dependent Claim
21 words
The substrate according to claim 1, comprised of glass fibers with a micronaire ratio between 1 and 7 on 5 g.
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) | 1994-07-29 | 1995-01-28 | 1995-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-29 | 1999-01-28 | 1999-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-29 | 2003-01-28 | 2003-07-30 | $7700.00 | Window Closed / Lapsed |