US4405665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ground covering with drainage-promoting members
Assignee: INTERNATIONALE DE REVETRMENTS DE SOL SA- SIRS Ste
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Filing: 1982-04-21
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Granted: 1983-09-20
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Expires: 2002-04-21
Abstract
Abstract An artificial turf consists of a pile of filaments or strips of propylene or like weather-resistant material bonded to a support which can be doubled and which is provided on its reverse with an array of synthetic resin material projections disposed discontinuously along the underside. These projections are in the form of truncated pyramids with substantially rectangular bases and prevent migration of the covering because of walking on the ground covering.
Inventors
- 👤 Michel Beaussier
- 👤 Henry Lesch
- 👤 Emile Evon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:45
CPC Classifications
A; A47; A47G; A47G27/00; A47G27/02; A47G27/0243; A47G27/0281; E; E01; E01C; E01C11/00; E01C11/22; E01C11/224; E01C11/225; E01C13/00; E01C13/02; E01C13/08; E01C2201/00; E01C2201/20; E01C2201/202; E01C2201/207; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23979
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
101 words
A water-permeable artificial turf ground covering, comprising: a water-permeable wear layer formed with: a grass-like array of nonputrescible synthetic resin pile tufts a water-permeable nonwoven or woven synthetic resin support thermally bonded to said tufts at lower ends thereof, and a nonwoven layer composed of polyester or glass fibers reinforcing said support and located therebelow; and an array of drainage-promoting members formed on an underside of said nonwoven layer opposite said elements, said members being disposed discontinuously along said underside of said layer and being composed of synthetic resin material and having the form of truncated pyramids with substantially rectangular bases.
Claim 2
Dependent Claim
101 words
A water-permeable artificial turf ground covering, comprising: a water-permeable wear layer formed with: a grass-like array of nonputrescible synthetic resin pile tufts a water-permeable nonwoven or woven synthetic resin support thermally bonded to said tufts at lower ends thereof, and a nonwoven layer composed of polyester or glass fibers reinforcing said support and located therebelow; and an array of drainage-promoting members formed on an underside of said nonwoven layer opposite said elements, said members being disposed discontinuously along said underside of said layer and being composed of synthetic resin material and having the form of truncated pyramids with substantially rectangular bases.
Claim 3
Dependent Claim
15 words
The ground covering defined in claim 1 wherein said layers are bonded to said members.
Claim 4
Dependent Claim
25 words
The ground covering defined in claim 2 having a longitudinal dimension, said members extending at least in part in rows parallel to said longitudinal dimension.
Claim 5
Dependent Claim
25 words
The ground covering defined in claim 3 wherein at least some of the members of each of said rows extend parallel to said longitudinal dimension.
Claim 6
Dependent Claim
26 words
The ground covering defined in claim 4 wherein the members of at least some of said rows overlap gaps between members in others of said rows.
Claim 7
Dependent Claim
18 words
The ground covering defined in claim 5 wherein all of said members are of substantially the same length.
Claim 8
Dependent Claim
13 words
The ground covering defined in claim 5 wherein said elements have different lengths.
Claim 9
Dependent Claim
31 words
The ground covering defined in claim 5 wherein, within each row, some of said members are aligned in said direction longitudinally and others of said elements extend transversely to said dimension.
Claim 10
Dependent Claim
30 words
The ground covering defined in claim 5 wherein said support is bonded to said lower layer by thermal welding effected conjointly with the welding of said elements to said support.
References Cited (Backward Citations)
US2023307A
Cited
US2515847A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-09-19 | 1987-03-21 | 1987-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-19 | 1991-03-21 | 1991-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-19 | 1995-03-21 | 1995-09-20 | $7700.00 | Window Closed / Lapsed |