US5033231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Net for grassing
Assignee: Nisshoku Corp
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Filing: 1989-10-12
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Granted: 1991-07-23
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Expires: 2009-10-12
Abstract
Abstract A net for grassing obtained by knitting and weaving wefts having an appointed width in a texture less than said width by means of a large number of warps and having mountain portions and valley portions randomly formed on a right side and a reverse side thereof. Earth and sand and sprayed materials can be prevented from being washed away in the first stage of the protective construction for a face of slope.
Inventors
- 👤 Michihei Sakate
- 👤 Masashi Shibata
- 👤 Katsumi Tamura
- 👤 Tomofumi Matsumoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:58
CPC Classifications
E; E02; E02D; E02D17/00; E02D17/20; E02D17/202; A; A01; A01G; A01G20/00; A01G20/20; D; D04; D04B; D04B21/00; D04B21/10; D04B21/12; D10; D10B; D10B2505/00; D10B2505/20; D10B2505/204
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
114 words
A net assembly for encouraging the growth of vegetation on the slope of a ground surface, comprising: an open mesh net having a plurality of substantially parallel wefts comprised of a flat tape-like material having a predetermined width, the wefts being interconnected by a plurality of warps to provide a predetermined weave pattern for achieving a texture less than the width of the wefts, the texture having random spatially positioned protrusions and indentations on either side thereof to assist in the prevention of erosion of the ground soil, wherein the warps are comprises of a corrosion resistant material selected from a group consisting of corrosion resistant chemical flat yarns and corrosion resistant viscose rayon.
Claim 2
Dependent Claim
114 words
A net assembly for encouraging the growth of vegetation on the slope of a ground surface, comprising: an open mesh net having a plurality of substantially parallel wefts comprised of a flat tape-like material having a predetermined width, the wefts being interconnected by a plurality of warps to provide a predetermined weave pattern for achieving a texture less than the width of the wefts, the texture having random spatially positioned protrusions and indentations on either side thereof to assist in the prevention of erosion of the ground soil, wherein the warps are comprises of a corrosion resistant material selected from a group consisting of corrosion resistant chemical flat yarns and corrosion resistant viscose rayon.
Claim 3
Dependent Claim
34 words
The net assembly of claim 1 in which the wefts are comprised of an easily corrodible material selected from a group consisting of corrodible paper, nonwoven fabrics, corrodible viscose rayon, and chemical flat yarns.
Claim 4
Dependent Claim
20 words
The net assembly of claim 1 wherein the wafts are within the range of 3 mm to 3 cm wide.
Claim 5
Dependent Claim
23 words
The net assembly of claim 3 wherein the weft material is selected to have a corrodible characteristic when the net assembly is installed.
Claim 6
Dependent Claim
19 words
The net assembly of claim 4 wherein the wefts are within the range of 0.03 to 0.3 mm thick.
Claim 7
Dependent Claim
25 words
The net assembly of claim 5 wherein a substantially thin cotton sheet having desired seeds and fertilizers adhered thereto is adhered to the net assembly.
Claim 8
Dependent Claim
35 words
The net assembly of claim 4 wherein corrosion resistant wefts are interconnected between the corrodible wefts at desired intervals for forming a substantially rectangular pattern during decomposition of the net assembly in the ground soil.
Claim 9
Dependent Claim
20 words
The net assembly of claim 4 in which the corrodible material and corrosion resistant material are comprised of organic materials.
Claim 10
Dependent Claim
138 words
An open mesh net assembly for encouraging the growth of vegetation, comprising: a plurality of substantially parallel rectangular wefts having a predetermined width, the plurality of wefts comprised of a corrodible material selected from a group consisting of corrodible papers, nonwoven fabrics, corrodible viscose rayon, and chemical flat yarns; a plurality of warps interconnecting the wefts using a predetermined weave pattern for achieving a texture less than the width of the wefts, the plurality of wraps comprised of a corrosion resistant material selected from a group consisting of corrosion resistant chemical flat yarns and corrosion resistant viscose rayon, and a substantially thin cotton sheet adhered to the net, the cotton sheet having desired seeds and fertilizers adhered thereto, whereby the texture formed by the predetermined weave pattern has random spatially positioned protrusions and indentations on either side thereof.
Claim 11
Dependent Claim
138 words
An open mesh net assembly for encouraging the growth of vegetation, comprising: a plurality of substantially parallel rectangular wefts having a predetermined width, the plurality of wefts comprised of a corrodible material selected from a group consisting of corrodible papers, nonwoven fabrics, corrodible viscose rayon, and chemical flat yarns; a plurality of warps interconnecting the wefts using a predetermined weave pattern for achieving a texture less than the width of the wefts, the plurality of wraps comprised of a corrosion resistant material selected from a group consisting of corrosion resistant chemical flat yarns and corrosion resistant viscose rayon, and a substantially thin cotton sheet adhered to the net, the cotton sheet having desired seeds and fertilizers adhered thereto, whereby the texture formed by the predetermined weave pattern has random spatially positioned protrusions and indentations on either side thereof.
Claim 12
Dependent Claim
30 words
The net assembly of claim 9 wherein corrosion resistant wefts are interconnected between the corrodible wefts at desired intervals form forming a substantially rectangular pattern during decomposition of the net.
Claim 13
Dependent Claim
20 words
The net assembly of claim 9 in which the corrodible material and corrosion resistant material are comprised or organic materials.
Claim 14
Dependent Claim
136 words
An open mesh net assembly for encouraging the growth of vegetation, comprising: a plurality of substantially parallel flat rectangular wefts having a predetermined width within the range of 3 mm to 3 cm wide and a thickness within the range of 0.03 mm to 0.3 mm, the wefts alternately comprised of a corrodible material and a corrosion resistant material for forming a substantially rectangular pattern during decomposition of the net, the corrodible material and corrosion resistant material comprised of organic materials, and a plurality of warps interconnecting the wefts using a predetermined weave pattern for achieving a texture less than the width of the wefts, the plurality of warps comprised of an organic corrosion resistant material, whereby the texture formed by the predetermined weave pattern has random spatially positioned protrusions and indentations on either side thereof.
Claim 15
Dependent Claim
136 words
An open mesh net assembly for encouraging the growth of vegetation, comprising: a plurality of substantially parallel flat rectangular wefts having a predetermined width within the range of 3 mm to 3 cm wide and a thickness within the range of 0.03 mm to 0.3 mm, the wefts alternately comprised of a corrodible material and a corrosion resistant material for forming a substantially rectangular pattern during decomposition of the net, the corrodible material and corrosion resistant material comprised of organic materials, and a plurality of warps interconnecting the wefts using a predetermined weave pattern for achieving a texture less than the width of the wefts, the plurality of warps comprised of an organic corrosion resistant material, whereby the texture formed by the predetermined weave pattern has random spatially positioned protrusions and indentations on either side thereof.
Claim 16
Dependent Claim
25 words
The net assembly of claim 12 wherein a substantially thin cotton sheet having desired seeds and fertilizers adhered thereto is adhered to the net assembly.
Claim 17
Dependent Claim
131 words
A net assembly for encouraging the growth of vegetation on the slope of a ground surface, comprising: an open mesh net having a plurality of substantially parallel wefts comprised of a flat tape-like material having a predetermined width, the wefts being interconnected by a plurality of warps to provide a predetermined weave pattern for achieving a texture less than the width of the wefts, the texture having random spatially positioned protrusions and indentations on either side thereof to assist in the prevention of erosion of the ground soil, wherein the wefts are within the range of 3 mm to 3 cm wide, and the weft material is selected to have a corrodible characteristic, and the warp material is selected to have a corrosion resistant characteristic when the net assembly is installed.
Claim 18
Dependent Claim
131 words
A net assembly for encouraging the growth of vegetation on the slope of a ground surface, comprising: an open mesh net having a plurality of substantially parallel wefts comprised of a flat tape-like material having a predetermined width, the wefts being interconnected by a plurality of warps to provide a predetermined weave pattern for achieving a texture less than the width of the wefts, the texture having random spatially positioned protrusions and indentations on either side thereof to assist in the prevention of erosion of the ground soil, wherein the wefts are within the range of 3 mm to 3 cm wide, and the weft material is selected to have a corrodible characteristic, and the warp material is selected to have a corrosion resistant characteristic when the net assembly is installed.
Claim 19
Dependent Claim
19 words
The net assembly of claim 14 wherein the wefts are within the range of 0.03 to 0.3 mm thick.
Claim 20
Dependent Claim
25 words
The net assembly of claim 15 wherein a substantially thin cotton sheet having desired seeds and fertilizers adhered thereto is adhered to the net assembly.
Claim 21
Dependent Claim
35 words
The net assembly of claim 14 wherein corrosion resistant wefts are interconnected between the corrodible wefts at desired intervals for forming a substantially rectangular pattern during decomposition of the net assembly in the ground soil.
Claim 22
Dependent Claim
20 words
The next assembly of claim 14 in which the corrodible material and corrosion resistant material are comprised of organic materials.
Claim 23
Dependent Claim
29 words
The net assembly of claim 14 in which the weft material is selected from a group consisting of corrodible papers, nonwoven fabrics, corrodible viscose rayon, and chemical flat yarns.
Claim 24
Dependent Claim
27 words
The net assembly of claim 14 wherein the warp material is selected from a group consisting of corrosion resistant chemical flat yarns and corrosion resistant viscose rayon.
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) | 1994-07-22 | 1995-01-21 | 1995-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-22 | 1999-01-21 | 1999-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-22 | 2003-01-21 | 2003-07-23 | $7700.00 | Window Closed / Lapsed |