Patent US4902541A successfully refreshed from Google Patents.
US4902541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf range mat
Assignee: Individual
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Filing: 1988-11-17
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Granted: 1990-02-20
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Expires: 2008-11-17
Abstract
Abstract Artificial athletic turf has a simulated grass surface provided by tufting strips into a backing fabric. The tufts are held in place by a precoat of polyurethane, and a reinforcing sheet is embedded within the precoat to provide tear resistance. A formed polyurethane is placed on the precoat, and one or more reinforcing sheet are also embedded within the foamed polyurethane. The strips are hydrophobic plastic with strength to prevent damage, and the coatings are polyurethane reinforced for tear resistance, which also yields a resilience as needed for an athletic mat. A hole can be cut into the mat, and the hole reinforced with a sleeve, to receive a tee for use as a golf mat.
Inventors
- 👤 Louis D. Martino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:01
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/36; A63B69/3661; A63C; A63C19/00; A63C19/04; E; E01; E01C; E01C13/00; E01C13/08; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23979; Y10T428/24; Y10T428/24273; Y10T428/24322
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
152 words
Athletic turf comprising a simulated grass surface and padding to simulate earth, said turf including a backing fabric, tufts in said backing fabric to simulate grass, a first coating on said backing fabric for locking said tufts in said backing fabric, a second coating formed on said first coating and adhered thereto, and a plurality of fibrous sheets within said first coating and said second coating, said plurality of fibrous sheets extending parallel to said backing fabric, said first coating comprising a cured in place polyurethane, one of said plurality of fibrous sheets being embedded within said first coating, said second coating comprising a foamed polyurethane adhered to said first coating, and another of said plurality of fibrous sheets being embedded within said second coating, said tufts in said backing fabric consisting of strips of material simulating grass, said first coating encapsulating said tufts to hold said tufts to said backing fabric.
Claim 2
Dependent Claim
152 words
Athletic turf comprising a simulated grass surface and padding to simulate earth, said turf including a backing fabric, tufts in said backing fabric to simulate grass, a first coating on said backing fabric for locking said tufts in said backing fabric, a second coating formed on said first coating and adhered thereto, and a plurality of fibrous sheets within said first coating and said second coating, said plurality of fibrous sheets extending parallel to said backing fabric, said first coating comprising a cured in place polyurethane, one of said plurality of fibrous sheets being embedded within said first coating, said second coating comprising a foamed polyurethane adhered to said first coating, and another of said plurality of fibrous sheets being embedded within said second coating, said tufts in said backing fabric consisting of strips of material simulating grass, said first coating encapsulating said tufts to hold said tufts to said backing fabric.
Claim 3
Dependent Claim
64 words
Athletic turf as claimed in claim 1, said athletic turf comprising a mat for a golf range, said tufts including sufficient length for providing said simulated grass surface on the face of said backing fabric, said mat defining a hole therethrough for receiving a driving range tee, the arrangement being such that said fibrous sheets strengthen the edges of said hole to prevent tearing.
Claim 4
Dependent Claim
36 words
Athletic turf as claimed in claim 2, and including a sleeve received within said hole for further reinforcing said hole, and an adhesive between said sleeve and said mat for retaining said sleeve within said hole.
Claim 5
Dependent Claim
89 words
A mat for golf driving range, said mat including a backing fabric, strips of material tufted into said backing fabric for simulating grass, a first coating on said backing fabric for locking the tufts in said backing fabric and securing said strips of material in said backing fabric, a fibrous sheet embedded within said first coating, said fibrous sheet being parallel to said backing fabric, and a second coating fixed to said first coating, said second coating comprising a foamed elastomeric material for providing a cushion for said mat.
Claim 6
Dependent Claim
89 words
A mat for golf driving range, said mat including a backing fabric, strips of material tufted into said backing fabric for simulating grass, a first coating on said backing fabric for locking the tufts in said backing fabric and securing said strips of material in said backing fabric, a fibrous sheet embedded within said first coating, said fibrous sheet being parallel to said backing fabric, and a second coating fixed to said first coating, said second coating comprising a foamed elastomeric material for providing a cushion for said mat.
Claim 7
Dependent Claim
42 words
A mat as claimed in claim 4, said first coating comprising a polyurethane, said second coat comprising a foamed polyurethane, and further including a second fibrous sheet embedded within said second coat, said second fibrous sheet being parallel to said backing fabric.
Claim 8
Dependent Claim
27 words
A mat as claimed in claim 5, said strips of material comprising a material selected from the group consisting of polypropylene, nylon, and polyester, and mixtures thereof.
Claim 9
Dependent Claim
37 words
A mat as claimed in claim 4, said mat defining a hole therethrough for receiving a tee, a sleeve within said hole, and adhesive between said sleeve and said hole for securing said sleeve within said hole.
Claim 10
Independent Claim
115 words
A method for making an athletic turf comprising a simulated grass surface and padding to simulate earth, said method including the steps of tufting a backing fabric with strips to simulate grass, pouring a polyurethane mix onto the back of said backing fabric and allowing said polyurethane mix to encapsulate said strips tufted into said backing fabric and to react, preparing a second polyurethane mix and frothing said second polyurethane mix, pouring said second polyurethane onto the partially cured polyurethane mix and allowing both said polyurethanes to cure, and including the step of placing a fibrous sheet in at least one of said polyurethane mixes prior to the step of allowing said polyurethanes to cure.
Claim 11
Independent Claim
115 words
A method for making an athletic turf comprising a simulated grass surface and padding to simulate earth, said method including the steps of tufting a backing fabric with strips to simulate grass, pouring a polyurethane mix onto the back of said backing fabric and allowing said polyurethane mix to encapsulate said strips tufted into said backing fabric and to react, preparing a second polyurethane mix and frothing said second polyurethane mix, pouring said second polyurethane onto the partially cured polyurethane mix and allowing both said polyurethanes to cure, and including the step of placing a fibrous sheet in at least one of said polyurethane mixes prior to the step of allowing said polyurethanes to cure.
Claim 12
Dependent Claim
70 words
A method as claimed in claim 8, wherein the said step of placing a fibrous sheet in a least one of said polyurethane mixed comprises the steps of placing a first fibrous sheet in said polyurethane mix and allowing said sheet to become immersed in said mix, and placing a second fibrous sheet in said second polyurethane mix and allowing said second sheet to become immersed in said second mix.
References Cited (Backward Citations)
US4268551A
Cited
US4617218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-19 | 1993-08-21 | 1994-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-19 | 1997-08-21 | 1998-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-19 | 2001-08-21 | 2002-02-20 | $7700.00 | Window Closed / Lapsed |