Patent US4645381A successfully refreshed from Google Patents.
US4645381A
Expired / Lapsed
US
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Building material, its application for embankment, surfacing, or as foundation mass over a loose ground, and method and installation for the production of said material
Assignee: Individual
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Filing: 1985-10-04
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Granted: 1987-02-24
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Expires: 2005-10-04
Abstract
Abstract The present invention relates to a building material and to its application in particular for embankments, surfacings, or mass foundation over loose ground. Said material comprises at least one flexible continuous element distributed tri-dimensionally in random manner in a mass of solid particles (such as sand) so as to contribute to creating a certain cohesion between the different parts of the mass of particles by entwining these parts. The invention finds an application in the production of road surfacings or as foundation mass over a loose ground.
Inventors
- 👤 Etienne Leflaive
- 👤 Claude Guignard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:03
CPC Classifications
E; E02; E02D; E02D17/00; E02D17/18; E02D3/00; E02D3/005
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
114 words
A building material comprising flexible tridimensional reinforcement means disposed in a mass of solid discrete particles of compact form with the reinforcement means contributing to creating cohesion within and between the different parts of the mass of particles, wherein said reinforcement means comprises at least one very long supple continuous linear element distributed tri-dimensionally, in substantially even manner throughout the volume occupied by said mass of particles, without any bonding between said particles, between said particles and said linear element and between contacting portions of the linear element to each other, said very long supple continuous linear element entwining said parts of said mass of particles so as to provide cohesion of the mass.
Claim 2
Dependent Claim
114 words
A building material comprising flexible tridimensional reinforcement means disposed in a mass of solid discrete particles of compact form with the reinforcement means contributing to creating cohesion within and between the different parts of the mass of particles, wherein said reinforcement means comprises at least one very long supple continuous linear element distributed tri-dimensionally, in substantially even manner throughout the volume occupied by said mass of particles, without any bonding between said particles, between said particles and said linear element and between contacting portions of the linear element to each other, said very long supple continuous linear element entwining said parts of said mass of particles so as to provide cohesion of the mass.
Claim 3
Dependent Claim
21 words
A material as claimed in claim 1, wherein the continuous particles in the mass of particles are naturally occurring non-manmade particles.
Claim 4
Dependent Claim
53 words
A material as claimed in claim 1, wherein the weight of the particle contents of the material is substantially greater than the weight of the long supple continuous linear element content with the weight of said continuous element being between a few hundredths and a few ten thousandths the weight of said particles.
Claim 5
Dependent Claim
43 words
A material as claimed in claim 1, wherein the long supple continuous linear element is selected from the following group: a yarn comprising at least one chemical continuous strand, a textile yarn formed from discontinuous fibers, wire, metallic tape, small band, fibrillate strip.
Claim 6
Dependent Claim
35 words
A material as claimed in claim 1, wherein the particles are selected from the following: sand, gravel, stones, pieces of natural rocks, fragments of natural soils, artificial aggregates, concrete blocks, industrial and domestic solid wastes.
Claim 7
Dependent Claim
24 words
The combination of claim 1, wherein the solid particles comprise sand and the said very long supple continuous element comprises an untwisted polyester yarn.
Claim 8
Dependent Claim
19 words
The combination of claim 6, wherein the weight of the yarn is 0.14% of the weight of the sand.
Claim 9
Dependent Claim
18 words
The combination of claim 7, wherein there is 0.125 meter yarn for every cubic centimeter of building material.
Claim 10
Dependent Claim
20 words
The combination of claim 6, wherein the weight of the yarn is approximately 0.1% of the weight of the sand.
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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) | 1990-02-23 | 1990-08-25 | 1991-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-23 | 1994-08-25 | 1995-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-23 | 1998-08-25 | 1999-02-24 | $7700.00 | Window Closed / Lapsed |