US4992003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unit comprising mesh combined with geotextile
Assignee: Yehuda Welded Mesh Ltd
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Filing: 1989-01-12
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Granted: 1991-02-12
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Expires: 2009-01-12
Abstract
Abstract A geotextile unit comprising a rigid mesh combined with geotextile material.
Inventors
- 👤 Chaim Perach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:44
CPC Classifications
E; E02; E02D; E02D17/00; E02D17/18; E02D29/00; E02D29/02; E02D29/0225; E02D29/0241; E02D3/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
94 words
A porous geotextile unit comprising a porous geotextile material and means for minimizing the stretching of the porous geotextile material including a rigid mesh of construction steel rods and means for integrally coupling the porous geotextile material to the mesh wherein the porous geotextile material comprises first and second sheets of porous geotextile material disposed on opposite sides of said mesh and the means for integrally coupling the porous geotextile material to the mesh comprises heat welds joining said first and second sheets of porous geotexile material only at the areas between the rods.
Claim 2
Dependent Claim
94 words
A porous geotextile unit comprising a porous geotextile material and means for minimizing the stretching of the porous geotextile material including a rigid mesh of construction steel rods and means for integrally coupling the porous geotextile material to the mesh wherein the porous geotextile material comprises first and second sheets of porous geotextile material disposed on opposite sides of said mesh and the means for integrally coupling the porous geotextile material to the mesh comprises heat welds joining said first and second sheets of porous geotexile material only at the areas between the rods.
Claim 3
Dependent Claim
17 words
The geotextile unit of claim 1 wherein the construction steel rods are arranged in rows and columns.
Claim 4
Dependent Claim
22 words
The geotextile unit of claim 2 and also comprising means for welding the rods together at intersections of the rows and columns.
Claim 5
Dependent Claim
24 words
The geotextile unit of claim 2 wherein the geotextile material is removed from selected areas of the unit and wherein the rods form protuberances.
Claim 6
Dependent Claim
166 words
Apparatus for soil reinforcement for use in repairing or preventing slips and landslides or the construction of steep slopes, said reinforcement apparatus comprising a plurality of porous geotextile units each comprising a porous geotextile material and means for minimizing the stretching of the porous geotextile material including a rigid mesh of construction steel rods and means for integrally coupling the porous geotextile material to the mesh wherein the porous geotextile material comprises first and second sheets of porous geotextile material disposed on opposite sides of said mesh and the means for integrally coupling the porous geotextile material to the mesh comprises heat welds joining said first and second sheets of porous geotextile material only at the areas between the rods, said units used as components of the fill to separate layers of the fill thereby interrupting failure planes, said units assuring friction with the fill, and said rigid mesh comprising means for preventing the stretching of the material while enabling the forming of the geotextile units.
Claim 7
Dependent Claim
166 words
Apparatus for soil reinforcement for use in repairing or preventing slips and landslides or the construction of steep slopes, said reinforcement apparatus comprising a plurality of porous geotextile units each comprising a porous geotextile material and means for minimizing the stretching of the porous geotextile material including a rigid mesh of construction steel rods and means for integrally coupling the porous geotextile material to the mesh wherein the porous geotextile material comprises first and second sheets of porous geotextile material disposed on opposite sides of said mesh and the means for integrally coupling the porous geotextile material to the mesh comprises heat welds joining said first and second sheets of porous geotextile material only at the areas between the rods, said units used as components of the fill to separate layers of the fill thereby interrupting failure planes, said units assuring friction with the fill, and said rigid mesh comprising means for preventing the stretching of the material while enabling the forming of the geotextile units.
Claim 8
Dependent Claim
23 words
The soil reinforcement apparatus of claim 5 and also comprising wall means and means for attaching the geotextile units to the wall means.
Claim 9
Dependent Claim
35 words
The soil reinforcement arrangement of claim 5 and also comprising wall means comprised of stacked hollow blocks, and where protuberances of the mesh of the geotextile units are bent to extend into the hollow blocks.
Claim 10
Dependent Claim
16 words
The soil reinforcement arrangement of claim 7 wherein the hollow blocks are precast in one unit.
Claim 11
Dependent Claim
19 words
The soil reinforcement arrangement of claim 7 wherein the hollow blocks are staggered to provide stadium like seating arrangements.
Claim 12
Dependent Claim
30 words
The geotextile unit of claim 1 and also comprising a sheet disposed on one side of the mesh and formed of a material having less friction than the geotextile material.
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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) | 1994-02-11 | 1994-08-13 | 1995-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-11 | 1998-08-13 | 1999-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-11 | 2002-08-13 | 2003-02-12 | $7700.00 | Window Closed / Lapsed |