US4852870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substitute ground surface material
Assignee: En Tout Cas PLC
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Filing: 1988-09-14
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Granted: 1989-08-01
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Expires: 2008-09-14
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 styrene-butadiene-styrene copolymer 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.
Inventors
- 👤 Paul Hawkins
- 👤 John D. Dachtler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:35
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: 9
Claim 1
Independent Claim
60 words
Substitute ground surface material comprising sand or other particulate or granular mineral material treated with a binder comprising a styrene-butadiene-styrene copolymer dispersed or dissolved in an 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.
Claim 2
Dependent Claim
60 words
Substitute ground surface material comprising sand or other particulate or granular mineral material treated with a binder comprising a styrene-butadiene-styrene copolymer dispersed or dissolved in an 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.
Claim 3
Dependent Claim
25 words
Substitute ground surface material as claimed in claim 1 wherein said oil is selected from the group consisting of bitumen, gas oil and siliconised oil.
Claim 4
Dependent Claim
25 words
Substitute ground surface material as claimed in claim 1, wherein said styrene-butadiene-styrene copolymer is a block copolymer having a melting point of about 80° C.
Claim 5
Dependent Claim
19 words
Substitute ground surface material as claimed in claim 1, wherein coloring pigments are added to said ground surface material.
Claim 6
Dependent Claim
70 words
Substitute ground surface material comprising sand or other particulate or granular material treated with a binder comprising a styrene-butadiene-styrene copolymer 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 upon a substrate.
Claim 7
Dependent Claim
70 words
Substitute ground surface material comprising sand or other particulate or granular material treated with a binder comprising a styrene-butadiene-styrene copolymer 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 upon a substrate.
Claim 8
Dependent Claim
83 words
A recreational or sports area having a surface formed of a substitute ground surface material comprising sand or other particulate or granular material treated with a binder comprising a styrene-butadiene-styrene copolymer dissolved or dispersed in an oil or similar compound, 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 material is laid upon a substrate.
Claim 9
Dependent Claim
83 words
A recreational or sports area having a surface formed of a substitute ground surface material comprising sand or other particulate or granular material treated with a binder comprising a styrene-butadiene-styrene copolymer dissolved or dispersed in an oil or similar compound, 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 material is laid upon a substrate.
References Cited (Backward Citations)
US1600515A
Cited
US3533953A
Cited
FR2359935A1
Cited
US4452926A
Cited
US4598019A
Cited
US4792133A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-31 | 1993-01-30 | 1993-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-31 | 1997-01-30 | 1997-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-31 | 2001-01-30 | 2001-08-01 | $7700.00 | Window Closed / Lapsed |