Patent US4792133A successfully refreshed from Google Patents.
US4792133A
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Substitute ground surface material
Assignee: En Tout Cas PLC
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Filing: 1986-12-08
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Granted: 1988-12-20
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Expires: 2006-12-08
Abstract
Abstract The invention relates to a substitute soil material for laying as a sports surface for example a horse-race track. The material may be a sand or other fine granular material with a binder comprising a polymeric material dispersed or dissolved in an oil which preferably is a soft grease at ordinary climatic temperatures. When laid, the surface may be maintained by periodic raking. Suitable polymeric materials are e.v.a. polystyrene, nylon or p.v.c.
Inventors
- 👤 Paul Hawkins
- 👤 John D. Dachtler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:58
CPC Classifications
C; C09; C09K; C09K17/00; C09K17/14; C09K17/18; C09K17/40; E; E01; E01C; E01C13/00; E01C13/06; E01C13/065; E01C7/00; E01C7/08; E01C7/36; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2998
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
74 words
Substitute ground surface material comprising sand or other particulate or granular mineral material treated with a binder comprising synthetic polymeric material dispersed or dissolved in a compound selected from the group consisting of latices, alginates, molasses and combinations thereof, said compound having a viscosity such that it is substantially non-fluid at ambient temperatures so as to produce an inert, discrete material permanently capable of being raked when laid in a layer upon a substrate.
Claim 2
Dependent Claim
74 words
Substitute ground surface material comprising sand or other particulate or granular mineral material treated with a binder comprising synthetic polymeric material dispersed or dissolved in a compound selected from the group consisting of latices, alginates, molasses and combinations thereof, said compound having a viscosity such that it is substantially non-fluid at ambient temperatures so as to produce an inert, discrete material permanently capable of being raked when laid in a layer upon a substrate.
Claim 3
Dependent Claim
22 words
Ground surface material as claimed in claim 1 wherein the sand or other particulate or granular material is of varying particle size.
Claim 4
Dependent Claim
71 words
Substitute ground surface material comprising sand or other particulate or granular mineral material treated with a binder comprising synthetic polymeric material dispersed or dissolved in an oil, said oil having a viscosity such that it is substantially non-fluid at ambient temperatures so as to produce an inert, discrete material permanently capable of being raked when laid in a layer upon a substrate, wherein said oil is a bitumen or gas oil.
Claim 5
Dependent Claim
71 words
Substitute ground surface material comprising sand or other particulate or granular mineral material treated with a binder comprising synthetic polymeric material dispersed or dissolved in an oil, said oil having a viscosity such that it is substantially non-fluid at ambient temperatures so as to produce an inert, discrete material permanently capable of being raked when laid in a layer upon a substrate, wherein said oil is a bitumen or gas oil.
Claim 6
Dependent Claim
69 words
Substitute ground surface material comprising sand or other particulate or granular mineral material treated with a binder comprising synthetic polymeric material dispersed or dissolved in an oil, said oil having a viscosity such that it is substantially non-fuild at ambient temperatures so as to produce an inert, discrete material permanently capable of being raked when laid in a layer upon a substrate wherein said oil is a siliconized oil.
Claim 7
Dependent Claim
69 words
Substitute ground surface material comprising sand or other particulate or granular mineral material treated with a binder comprising synthetic polymeric material dispersed or dissolved in an oil, said oil having a viscosity such that it is substantially non-fuild at ambient temperatures so as to produce an inert, discrete material permanently capable of being raked when laid in a layer upon a substrate wherein said oil is a siliconized oil.
Claim 8
Dependent Claim
70 words
Substitute ground surface material comprising sand or other particulate or granular mineral material treated with a binder comprising synthetic polymeric material dispersed or dissolved in an oil, said oil having a viscosity such that it is substantially non-fluid at ambient temperatures so as to produce an inert, discrete material permanently capable of being raked when laid in a layer upon a substrate, wherein said polymeric material is ethylene vinyl acetate.
Claim 9
Dependent Claim
70 words
Substitute ground surface material comprising sand or other particulate or granular mineral material treated with a binder comprising synthetic polymeric material dispersed or dissolved in an oil, said oil having a viscosity such that it is substantially non-fluid at ambient temperatures so as to produce an inert, discrete material permanently capable of being raked when laid in a layer upon a substrate, wherein said polymeric material is ethylene vinyl acetate.
Claim 10
Dependent Claim
20 words
Ground surface material as claimed in claim 5 wherein said ethylene vinyl acetate contains approximately 28% vinyl acetate by weight.
Claim 11
Dependent Claim
69 words
Substitute ground surface material comprising sand or other particulate or granular mineral material treated with a binder comprising synthetic polymeric material dispersed or dissolved in an oil, said oil having a viscosity such that it is substantially non-fluid at ambient temperatures so as to produce an inert, discrete material permanently capable of being raked when laid in a layer upon a substrate wherein said polymeric material is polyvinyl chloride.
Claim 12
Dependent Claim
69 words
Substitute ground surface material comprising sand or other particulate or granular mineral material treated with a binder comprising synthetic polymeric material dispersed or dissolved in an oil, said oil having a viscosity such that it is substantially non-fluid at ambient temperatures so as to produce an inert, discrete material permanently capable of being raked when laid in a layer upon a substrate wherein said polymeric material is polyvinyl chloride.
Claim 13
Dependent Claim
72 words
Substitute ground surface material comprising sand or other particulate or granular mineral material treated with a binder comprising synthetic polymeric material dispersed or dissolved in an oil, said oil having a viscosity such that it is substantially non-fluid at ambient temperatures so as to produce an inert, discrete material permanently capable of beng raked when laid in a layer upon a substrate wherein coloring pigments are added to said ground surface material.
Claim 14
Dependent Claim
72 words
Substitute ground surface material comprising sand or other particulate or granular mineral material treated with a binder comprising synthetic polymeric material dispersed or dissolved in an oil, said oil having a viscosity such that it is substantially non-fluid at ambient temperatures so as to produce an inert, discrete material permanently capable of beng raked when laid in a layer upon a substrate wherein coloring pigments are added to said ground surface material.
Claim 15
Dependent Claim
117 words
A recreational or sports area having a surface formed of a substitute ground surface material comprising sand or other particulate or granular mineral material treated with a binder comprising synthetic polymeric material selected from the group consisting of ethylene vinyl acetate, polystyrene, nylon, polypropylene and polyvinyl chloride, dispersed or dissolved in an oil or similar compound selected from the group consisting of latices, alginates, molasses and combinations thereof, said oil or similar compound having a viscosity such that it is substantially non-fluid at ambient temperatures so as to produce an inert, discrete material permanently capable of being raked when laid in a layer upon a substrate, wherein said material is laid in a layer upon a substrate.
Claim 16
Dependent Claim
117 words
A recreational or sports area having a surface formed of a substitute ground surface material comprising sand or other particulate or granular mineral material treated with a binder comprising synthetic polymeric material selected from the group consisting of ethylene vinyl acetate, polystyrene, nylon, polypropylene and polyvinyl chloride, dispersed or dissolved in an oil or similar compound selected from the group consisting of latices, alginates, molasses and combinations thereof, said oil or similar compound having a viscosity such that it is substantially non-fluid at ambient temperatures so as to produce an inert, discrete material permanently capable of being raked when laid in a layer upon a substrate, wherein said material is laid in a layer upon a substrate.
References Cited (Backward Citations)
CA745046A
Cited
US1600515A
Cited
US3533953A
Cited
JPS49723A
Cited
FR2359935A1
Cited
DD200476A1
Cited
US4452926A
Cited
US4598019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-12-20 | 1992-06-20 | 1992-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-20 | 1996-06-20 | 1996-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-20 | 2000-06-20 | 2000-12-20 | $7700.00 | Window Closed / Lapsed |