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US6299959B1
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US
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Filled synthetic grass
Assignee: Advanced Polymer Technology Corp
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Filing: 1999-09-10
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Granted: 2001-10-09
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Expires: 2019-09-10
Abstract
Abstract The improved top dressed synthetic turf according to the patent invention provides thatch like fibers to retain top dressing and particularly the rubber or resilient particles in the dressing. The grasslike surface is formed by polyethylene co-polymer slit fibers more than two inches in height tufted through a fiberglass reinforced backing. The thatch zone fibers are dense and texturized so that they will contract to only about one inch in height after curing.
Inventors
- 👤 Troy Squires
- 👤 L. Alan Cole
- 👤 Raymond Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:44
CPC Classifications
E; E01; E01C; E01C13/00; E01C13/08; D; D06; D06N; D06N7/00; D06N7/0063; D06N7/0065; D06N7/0068; D06N7/0071; D06N7/0073; D06N7/0081; D06N2201/00; D06N2201/02; D06N2201/0254; D06N2201/08; D06N2201/082; D06N2201/12; D06N2203/00; D06N2203/02; D06N2203/04; D06N2203/042; D06N2203/06; D06N2203/068; D06N2205/00; D06N2205/04; D06N2205/10; D06N2205/20; D06N2209/00; D06N2209/16; D06N2209/1628; D06N2209/1685; D06N2209/1692; D06N2211/00; D06N2211/06; D06N2211/066; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23921; Y10T428/23979; Y10T428/25; Y10T428/259
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
102 words
A synthetic turf comprising: (a) a composite backing fabric; (b) normally substantially upstanding grasslike fibers therefrom, the length of said grasslike fibers being substantially uniform and at least about 2 inches high in height; (c) thatch zone fibers among the grasslike fibers; (d) a first top-dressing layer comprising at least about 70% resilient particles and interspersed among the base of the grasslike fibers and the thatch zone fibers and on the backing to a substantially uniform depth of at least about ½ inch; and (e) a second top-dressing layer comprising a mixture of resilient particles mixed with about 5 to 50% sand.
Claim 2
Dependent Claim
102 words
A synthetic turf comprising: (a) a composite backing fabric; (b) normally substantially upstanding grasslike fibers therefrom, the length of said grasslike fibers being substantially uniform and at least about 2 inches high in height; (c) thatch zone fibers among the grasslike fibers; (d) a first top-dressing layer comprising at least about 70% resilient particles and interspersed among the base of the grasslike fibers and the thatch zone fibers and on the backing to a substantially uniform depth of at least about ½ inch; and (e) a second top-dressing layer comprising a mixture of resilient particles mixed with about 5 to 50% sand.
Claim 3
Dependent Claim
104 words
A synthetic turf comprising: (a) a composite backing fabric; (b) normally substantially upstanding grasslike fibers therefrom, the length of said grasslike fibers being substantially uniform and at least about 2 inches high in height; (c) thatch zone fibers among the grasslike fibers; (d) a first top-dressing layer comprising at least about 70% resilient particles and interspersed among the base of the grasslike fibers and the thatch zone fibers and on the backing to a substantially uniform depth of at least about ½ inch; and (e) a second top-dressing layer comprising a mixture of resilient particles mixed with about 5 to 30% pellets by weight.
Claim 4
Dependent Claim
104 words
A synthetic turf comprising: (a) a composite backing fabric; (b) normally substantially upstanding grasslike fibers therefrom, the length of said grasslike fibers being substantially uniform and at least about 2 inches high in height; (c) thatch zone fibers among the grasslike fibers; (d) a first top-dressing layer comprising at least about 70% resilient particles and interspersed among the base of the grasslike fibers and the thatch zone fibers and on the backing to a substantially uniform depth of at least about ½ inch; and (e) a second top-dressing layer comprising a mixture of resilient particles mixed with about 5 to 30% pellets by weight.
Claim 5
Dependent Claim
114 words
A synthetic turf comprising: (a) a composite backing fabric; (b) normally substantially upstanding grasslike fibers therefrom, the length of said grasslike fibers being substantially uniform and at least about 2 inches high in height; (c) thatch zone fibers among the grasslike fibers; (d) a first top-dressing layer comprising at least about 80% resilient particles and interspersed among the base of the grasslike fibers and the thatch zone fibers and on the backing to a substantially uniform depth of at least about ½ inch; and (e) a second top-dressing layer interspersed among the grasslike fibers on top of said first layer, said second layer comprising between about 25-50% sand and between about 50-75% resilient particles.
Claim 6
Dependent Claim
114 words
A synthetic turf comprising: (a) a composite backing fabric; (b) normally substantially upstanding grasslike fibers therefrom, the length of said grasslike fibers being substantially uniform and at least about 2 inches high in height; (c) thatch zone fibers among the grasslike fibers; (d) a first top-dressing layer comprising at least about 80% resilient particles and interspersed among the base of the grasslike fibers and the thatch zone fibers and on the backing to a substantially uniform depth of at least about ½ inch; and (e) a second top-dressing layer interspersed among the grasslike fibers on top of said first layer, said second layer comprising between about 25-50% sand and between about 50-75% resilient particles.
Claim 7
Dependent Claim
43 words
The synthetic turf of claim 3 wherein a third top-dressing layer is interspersed among the grasslike fibers on top of said second top-dressing layer, said third top-dressing layer comprising between about 25 to 50% resilient particles and between about 50 to 75% sand.
Claim 8
Dependent Claim
73 words
A playing surface for athletic games comprising: (a) a firm, stable subsurface; (b) a backing comprising a fiberglass reinforcing matrix; (c) grasslike fibers tufted through and normally substantially upstanding from said backing having substantially uniform length of at least about two inches; (d) a first top-dressing layer comprising at least about 70% resilient particles; and (e) a second top-dressing layer comprising a mixture of resilient particles mixed with about 5 to 50% sand.
Claim 9
Dependent Claim
73 words
A playing surface for athletic games comprising: (a) a firm, stable subsurface; (b) a backing comprising a fiberglass reinforcing matrix; (c) grasslike fibers tufted through and normally substantially upstanding from said backing having substantially uniform length of at least about two inches; (d) a first top-dressing layer comprising at least about 70% resilient particles; and (e) a second top-dressing layer comprising a mixture of resilient particles mixed with about 5 to 50% sand.
Claim 10
Dependent Claim
88 words
A playing surface for athletic games comprising: (a) a firm, stable subsurface; (b) a backing comprising a fiberglass reinforcing matrix; (c) grasslike fibers tufted through and normally substantially upstanding from said backing having substantially uniform length of at least about two inches; (d) a first top dressing layer comprising at least about 80% resilient particles; and (e) a second top-dressing layer interspersed among the grasslike fibers on top of said first top-dressing layer, said second top-dressing layer comprising between about 25-50% sand and between about 50-75% resilient particles.
Claim 11
Dependent Claim
88 words
A playing surface for athletic games comprising: (a) a firm, stable subsurface; (b) a backing comprising a fiberglass reinforcing matrix; (c) grasslike fibers tufted through and normally substantially upstanding from said backing having substantially uniform length of at least about two inches; (d) a first top dressing layer comprising at least about 80% resilient particles; and (e) a second top-dressing layer interspersed among the grasslike fibers on top of said first top-dressing layer, said second top-dressing layer comprising between about 25-50% sand and between about 50-75% resilient particles.
Claim 12
Dependent Claim
44 words
The playing surface of claim 6 wherein a third top-dressing layer is interspersed among the grasslike fibers on top of said second top-dressing layer, and said third top-dressing layer comprising between about 25 to 50% resilient particles and between about 50 to 75% sand.
References Cited (Backward Citations)
US4044179A
Cited
US4389435A
Cited
US4337283A
Cited
US4336286A
Cited
US4426415A
Cited
US4396653A
Cited
US4497853A
Cited
US4655635A
Cited
US4522857A
Cited
US4637942A
Cited
US4705706A
Cited
US5041320A
Cited
US5026580A
Cited
US5205562A
Cited
US5601886A
Cited
US5962101A
Cited
US5958527A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-10-08 | 2005-04-09 | 2005-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-10-08 | 2009-04-09 | 2009-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-10-08 | 2013-04-09 | 2013-10-09 | $7700.00 | Window Closed / Lapsed |