Patent US4073753A successfully refreshed from Google Patents.
US4073753A
Expired / Lapsed
US
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Outdoor surface compositions
Assignee: Individual
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Filing: 1975-04-07
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Granted: 1978-02-14
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Expires: 1995-04-07
Abstract
Abstract An outdoor surface composition for surfacing outdoor playing areas or other utility areas comprises a mixture of particulate reclaimed rubber and inorganic particulate solids, such as sand, mixed together and compacted in a particular weight ratio, with each of the components having a designated particle size range. The amount and particle size range of both the reclaimed rubber and the inorganic particulate solids are important in obtaining a composition which is water-pervious for adequate drainage, shock absorbent, resistant to shear under average athletic playing conditions, and compaction resistant. For some applications, organic particulate solids, such as wood chips, peat, manure or cinders, may be included with the composition.
Inventors
- 👤 Stein Hauge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:23
CPC Classifications
E; E01; E01C; E01C13/00; E01C13/06; E01C13/065; C; C08; C08K; C08K3/00; C08K3/01; C08K3/013
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
91 words
A resilient, water pervious composition for playing surfaces and/or other utility areas, consisting of a mixture of particulate rubber and particulate inorganic solids, the particulate rubber being 10-50% by volume and having a particle size such that not more than 10% by volume passes a No. 100 sieve and substantially all passes a No. 8 sieve, the particulate inorganic solids being 90-50% by volume having a particle size such that 80- 100% by volume passes a No. 8 sieve and not more than 15% by volume passes a No. 200 sieve.
Claim 2
Dependent Claim
91 words
A resilient, water pervious composition for playing surfaces and/or other utility areas, consisting of a mixture of particulate rubber and particulate inorganic solids, the particulate rubber being 10-50% by volume and having a particle size such that not more than 10% by volume passes a No. 100 sieve and substantially all passes a No. 8 sieve, the particulate inorganic solids being 90-50% by volume having a particle size such that 80- 100% by volume passes a No. 8 sieve and not more than 15% by volume passes a No. 200 sieve.
Claim 3
Dependent Claim
36 words
The composition of claim 1 wherein the particulate rubber is from reclaimed vehicle tires, the particulate rubber constituting elongated fibers of a length ranging from 1/4 to 3 inches and diameters from 1/16 to 1/8 inch.
Claim 4
Dependent Claim
82 words
A resilient, water pervious composition for playing surfaces and/or other utility areas consisting of a mixture of particulate rubber and inorganic particular solids, the particulate rubber being 20-50% by volume having a particle size such that not more than 10% by volume passes a No. 100 sieve and the particulate inorganic solids being 80-50% by volume having a particle size such that 80-100% by volume passes a No. 8 sieve and not more than 15% by volume passes a No. 200 sieve.
Claim 5
Dependent Claim
82 words
A resilient, water pervious composition for playing surfaces and/or other utility areas consisting of a mixture of particulate rubber and inorganic particular solids, the particulate rubber being 20-50% by volume having a particle size such that not more than 10% by volume passes a No. 100 sieve and the particulate inorganic solids being 80-50% by volume having a particle size such that 80-100% by volume passes a No. 8 sieve and not more than 15% by volume passes a No. 200 sieve.
Claim 6
Dependent Claim
41 words
The composition of claim 3, including the addition of 5-25% by volume organic particulate solids as a part of the 80-50% by volume inorganic particulate solids, the organic particulate solids selected from the group consisting of wood chips, peat and manure.
Claim 7
Dependent Claim
36 words
The composition of claim 4 wherein the particulate rubber is from reclaimed vehicle tires, the particulate rubber constituting elongated fibers of a length ranging from 1/4 to 3 inches and diameters from 1/16 to 1/8 inch.
Claim 8
Dependent Claim
36 words
The composition of claim 3 wherein the particulate rubber is from reclaimed vehicle tires, the particulate rubber constituting elongated fibers of a length ranging from 1/4 to 3 inches and diameters from 1/16 to 1/8 inch.
Claim 9
Dependent Claim
43 words
The composition of claim 1 including the addition of 5- 25% by volume organic particulate solids as a part of the 90- 50% by volume inorganic particulate solids, the organic particulate solids selected from the group consisting of wood chips, peat and manure.
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) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |