# US 12,006,641 B2 · Synthetic turf putting green product and method

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- Number: US 12,006,641 B2
- Document ID: US12006641B2
- Status: Granted
- Kind: B2
- Application number: 17/385,557
- Filed: 2021-07-26
- Published: 2022-01-27
- Granted: 2024-06-11
- Earliest claimed: 2020-07-27
- Applicants: Bradford Dale Church
- Inventors: Bradford Dale Church
- Web page: https://patentgrep.com/patent/US12006641B2

## CPC

- E01C 13/08: Surfaces simulating grass {; Grass-grown sports grounds (grass-like surfaces for skiing E01C13/12)}
- B32B 5/02: characterised by structural features of a {fibrous or filamentary} layer {(layer formed of metallic wires B32B15/02; layer formed of natural mineral fibres B32B19/02; layer formed of wood fibres B32B21/02)}
- B32B 5/022: {Non-woven fabric}
- B32B 5/024: {Woven fabric}
- B32B 5/026: {Knitted fabric}
- B32B 5/073: {characterised by the fibrous or filamentary layer being mechanically connected to another layer by sewing, stitching, hook-and-loop fastening or stitchbonding}
- B32B 5/18: characterised by features of a layer {of} foamed material
- B32B 5/24: one layer being a fibrous or filamentary layer
- B32B 5/245: {another layer next to it being a foam layer}
- B32B 5/262: {characterised by one fibrous or filamentary layer being a woven fabric layer}
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- B32B 2255/02: on fibrous or filamentary layer
- B32B 2262/0253: Polyolefin fibres
- B32B 2262/0261: Polyamide fibres
- B32B 2266/06: Open cell foam
- B32B 2266/08: Closed cell foam
- B32B 2307/558: Impact strength, toughness
- B32B 2307/56: Damping, energy absorption
- B32B 2307/726: Permeability to liquids, absorption
- E01C: CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR (forming roads or like surfaces by compacting or grading snow or ice E01H)
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

## Abstract

A synthetic turf putting green includes a backing, tufts of yarn, and one or more fabric, fiber or foam padding material having the tufts of yarn stitched therein. A liquid may be added to and absorbed by the fabric, fiber or foam pad or pads to produce an additional shock absorbing affect such that the bounce of a golf ball mimics the bounce on a natural/real grass putting green.

## Claims

### Claim 1

A synthetic turf putting green, comprising:
a first layer of moisture absorbing and shock absorbing material, wherein the first layer comprises at least one foam pad it combination with an oil applied to the at least one foam pad;
a second layer comprising a backing material attached underneath the first layer;
tufts of yarn extending from the backing material and through the first layer of moisture absorbing and shock absorbing material, wherein the tufts of yarn form a putting green surface; and
a third layer comprising an open cell foam pad below the first layer of moisture absorbing and shock absorbing material and underneath the second layer of backing material, wherein the open cell foam pad is separate from the tufts of yarn;
wherein the first layer, the second layer, and the third layer form at least a three layer synthetic turf with the at least one foam pad being the top layer, the backing material being the middle layer, and the open cell foam pad being the bottom layer, and with the tufts of yarn extending from the middle layer through the top layer.

### Claim 2

A method of making a synthetic turf putting green comprising the steps of:
affixing tufts of yarn to a yarn backing material;
attaching the yarn backing material underneath a foam pad having moisture absorbing properties;
extending the tufts of yarn through the foam pad;
applying oil to the foam pad to create a shock absorbing material comprising in combination the foam pad and the oil;
placing an open cell foam pad, separate from the tufts of yarn, beneath the foam pad and the yarn backing material to form a three layer synthetic turf with the foam pad being the top layer, the yarn backing material being the middle layer, and the open cell foam pad being the bottom layer, and with the tufts of yarn extending from the middle layer through the to layer.

### Claim 3 (depends on 1)

The synthetic turf putting green of claim 1, further comprising an outdoors fragrance applied to the foam pad.

### Claim 4 (depends on 3)

The synthetic turf putting green of claim 3, wherein the outdoors fragrance is pine.

### Claim 5 (depends on 2)

The method of making a synthetic turf putting green of claim 2, further comprising the step of applying an outdoors fragrance to the foam pad.

### Claim 6 (depends on 5)

The method of making a synthetic turf putting green of claim 5, wherein the outdoors fragrance is pine.

### Claim 7 (depends on 1)

The synthetic turf putting green of claim 1, wherein the foam pad in combination with an oil is an open cell foam pad.