Patent US4152473A successfully refreshed from Google Patents.
US4152473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic turf seams
Assignee: Individual
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Filing: 1976-09-27
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Granted: 1979-05-01
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Expires: 1996-09-27
Abstract
Abstract A seam and method for forming such seam to join pieces of synthetic turf material together are disclosed. In the disclosed method, edges of synthetic turf material, having a polymeric backing thereon, are abutted together and the abutted edges are positioned over a reinforcing tape material. The reinforcing tape material is a fabric strip that is coated with a polymeric material that is substantially the same as the polymeric material forming the backing of the synthetic turf. A volatile solvent material, capable of dissolving the polymeric material forming the backing of the synthetic turf, and the coating on the reinforcing tape is thereafter applied to at least a portion of the abutted edges and the adjacent surface of the reinforcing tape. Pressure is applied to urge the abutted edges into contact with the surface of the reinforcing tape and the volatile solvent is allowed to evaporate, thereby forming the seam, having improved structural properties.
Inventors
- 👤 Bruce W. Layman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:42
CPC Classifications
E; E01; E01C; E01C13/00; E01C13/08; B; B29; B29C; B29C65/00; B29C65/48; B29C65/4895; B29C65/50; B29C65/5007; B29C65/5028; B29C65/5042; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/114; B29C66/1142; B29C66/40; B29C66/41; B29C66/43; B29C66/435; B29C66/70; B29C66/71; B29C65/5014; B29C66/712; B29C66/72; B29C66/721; B29C66/7212; B29C66/7214; B29C66/72141; B29C66/73; B29C66/739; B29C66/7392; B29L; B29L2031/00; B29L2031/732; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/19; Y10T428/192; Y10T428/197; Y10T428/198; Y10T428/23907; Y10T428/23979; Y10T428/28; Y10T428/2813; Y10T428/283
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
126 words
A seam structure formed by: (a) abutting the edges to be joined together; (b) positioning a reinforced tape beneath the abutted edges of said synthetic turf material, said reinforced tape being fabric coated with a polymeric material substantially the same as the backing on said synthetic turf material; (c) applying a solvent for said polymeric material along at least a portion of said reinforced tape adjacent the abutted edges of said synthetic turf material; (d) applying a force along at least a portion of the abutted edges of said synthetic turf material to thereby urge said abutted edges into contact with said reinforced tape; (e) allowing at least a portion of said solvent to evaporate while said abutted edges are in contact with said tape material.
Claim 2
Dependent Claim
126 words
A seam structure formed by: (a) abutting the edges to be joined together; (b) positioning a reinforced tape beneath the abutted edges of said synthetic turf material, said reinforced tape being fabric coated with a polymeric material substantially the same as the backing on said synthetic turf material; (c) applying a solvent for said polymeric material along at least a portion of said reinforced tape adjacent the abutted edges of said synthetic turf material; (d) applying a force along at least a portion of the abutted edges of said synthetic turf material to thereby urge said abutted edges into contact with said reinforced tape; (e) allowing at least a portion of said solvent to evaporate while said abutted edges are in contact with said tape material.
Claim 3
Dependent Claim
31 words
The seam structure of claim 1 wherein said polymeric material forming said backing of said synthetic turf material and the coating of said reinforced tape is essentially a polyvinyl chloride material.
Claim 4
Dependent Claim
10 words
The process of claim 2 wherein said solvent includes tetrahydrofuran.
Claim 5
Independent Claim
143 words
A method of forming a seam between edges of a synthetic turf material having a polymeric material backing thereon which comprises: (a) abutting the edges to be joined together; (b) positioning a reinforced tape beneath the abutted edges of said synthetic turf material, said reinforced tape being fabric coated with a polymeric material substantially the same as the backing on said synthetic turf material; (c) applying a solvent for said polymeric material along at least a portion of said reinforced tape adjacent the abutted edges of said synthetic turf material; (d) applying a force along at least a portion of the abutted edges of said synthetic turf material to thereby urge said abutted edges into contact with said reinforced tape; and (e) allowing at least a portion of said solvent to evaporate while said abutted edges are in contact with said tape material.
Claim 6
Independent Claim
143 words
A method of forming a seam between edges of a synthetic turf material having a polymeric material backing thereon which comprises: (a) abutting the edges to be joined together; (b) positioning a reinforced tape beneath the abutted edges of said synthetic turf material, said reinforced tape being fabric coated with a polymeric material substantially the same as the backing on said synthetic turf material; (c) applying a solvent for said polymeric material along at least a portion of said reinforced tape adjacent the abutted edges of said synthetic turf material; (d) applying a force along at least a portion of the abutted edges of said synthetic turf material to thereby urge said abutted edges into contact with said reinforced tape; and (e) allowing at least a portion of said solvent to evaporate while said abutted edges are in contact with said tape material.
Claim 7
Dependent Claim
14 words
The method of claim 4 wherein said synthetic turf material is a tufted material.
Claim 8
Dependent Claim
30 words
The method of claim 4 wherein said polymeric material forming said backing of said synthetic turf material and the coating of said reinforced tape is essentially a polyvinyl chloride material.
Claim 9
Dependent Claim
10 words
The method of claim 6 wherein said solvent includes tetrahydrofuran.
Claim 10
Dependent Claim
25 words
The method of claim 7 wherein polyvinyl chloride is dissolved in said solvent to thicken said solvent prior to applying it to said reinforced tape.
Claim 11
Dependent Claim
14 words
The method of claim 6 wherein said reinforced tape is coated with polyvinyl chloride.
Claim 12
Dependent Claim
17 words
The method of claim 9 wherein said reinforced tape is a nylon fabric coated with polyvinyl chloride.
References Cited (Backward Citations)
US3969564A
Cited
US3974312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-30 | 1982-10-30 | 1983-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-30 | 1986-10-30 | 1987-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-30 | 1990-10-30 | 1991-05-01 | $7700.00 | Window Closed / Lapsed |