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US6527889B1 Expired / Lapsed US ⏱️ 0.0 years remaining

Method for making stabilized artificial turf

Assignee: SafePlay International Inc
•
Filing: 2000-08-22
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Granted: 2003-03-04
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Expires: 2020-08-22
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Abstract

Abstract An artificial turf field comprises a mat with artificial grass stitched to the mat and rubber granules combined with powdered latex or other suitable powdered binding agent activated by water. Mats with the artificial grass affixed are laid on an athletic field. Rubber granules mixed with a bonding agent and the coated rubber granules are poured over the mats and raked until a depth of ½ to ¾ inches is achieved. Water is then misted onto the surface activating the bonding agent. The first layer is allowed to set. The first level of infil material will be bound particle to particle, to the grass and to the mat by the agent, thus ensuring a stablized shock absorbency pad. Additionally, the stabilized layer eliminates substantial migration of loose infil material. Next, uncoated rubber granules are applied to the field and raked in until only the top of the grass shows providing a finished appearance, the feel of a playing surface that is uniform, and a surface that is prevented from becoming thicker and harder in various places due to migration. The artificial grass fibers are brushed to fibrillate the ends of the artificial grass fibers.

Inventors

  • 👤 Brent Paschal
  • 👤 Jack Ford

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 19:43
CPC Classifications
E; E01; E01C; E01C13/00; E01C13/08; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23986

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 70 words
A method of making an artificial playing field comprising: mixing a bonding agent and rubber granules to create an infil mixture of coated rubber granules; applying coated rubber granules to turf consisting of polyethelene fibers; mixing butyl with water in a mister; applying the water and butyl mixture to the infil mixture with the mister until saturated; setting the infil mixture; adding uncoated rubber granules; and brushing the artificial turf.
Claim 2
Independent Claim 70 words
A method of making an artificial playing field comprising: mixing a bonding agent and rubber granules to create an infil mixture of coated rubber granules; applying coated rubber granules to turf consisting of polyethelene fibers; mixing butyl with water in a mister; applying the water and butyl mixture to the infil mixture with the mister until saturated; setting the infil mixture; adding uncoated rubber granules; and brushing the artificial turf.
Claim 3
Dependent Claim 14 words
The method of claim 1 wherein the bonding agent is powdered latex and chalk.
Claim 4
Dependent Claim 28 words
The method of claim 1 wherein the proportions of the bonding agent to rubber granules is approximately 3 pounds of bonding agent to 100 pounds of rubber granules.
Claim 5
Dependent Claim 15 words
The method of claim 1 wherein the proportion of butyl to water is approximately 1:16.
Claim 6
Dependent Claim 16 words
The method of claim 1 further comprising the step of laying mats on a prepared surface.
Claim 7
Dependent Claim 26 words
The method of claim 1 further comprising the step of raking said coated rubber granules to a depth of between approximately ½ inch and ¾ inch.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2006-03-03 2006-09-02 2007-03-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2010-03-03 2010-09-02 2011-03-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2014-03-03 2014-09-02 2015-03-04 $7700.00 Window Closed / Lapsed

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