Claims
- 1. A synthetic surface having a flexible backing member, parallel rows of synthetic ribbons, representing blades of grass, projecting upwardly from the backing member, the rows of ribbons spaced apart from each other from between ⅝ inch and 2¼ inches, and the length of the ribbons, extending upwardly from the backing member, is at least twice the dimension of the spacing between the rows of ribbons, the surface including a relatively thick layer of particulate material on the backing member supporting the ribbons in a relatively upright position relative to the backing member, wherein the particulate layer has a thickness of substantially two-thirds the length of the ribbons.
- 2. A surface as claimed in claim 1, wherein the length of the ribbons, extending upwardly from the backing member, is from between 1¼ and 5 inches.
- 3. A surface as claimed in claim 1, wherein the ribbons extend between ¼ inch and 1 inch above the layer of particulate material.
- 4. A surface as claimed in claim 1, wherein the ribbon has a width of about one-half of an inch.
- 5. A surface as claimed in claim 1, wherein the backing member is a single layer of permeable fabric.
- 6. A surface as claimed in claim 1, wherein the backing member is a double layer of permeable fabric.
- 7. A surface as claimed in claim 1, wherein the backing member is a triple layer of permeable fabric.
- 8. A surface as claimed in claim 1, wherein the particulate layer is a mixture of sand and cryogenically ground rubber.
- 9. A surface as claimed in claim 1 or 8, wherein at least a portion of the particulate material ranges between fifteen to thirty mesh.
- 10. A surface as claimed in claim 5, 6 or 7, wherein the backing member comprises one or more layers of fabric, at least one of the layers of fabric being needle punched to produce fuzzy fibers on its surface.
- 11. A surface as claimed in claim 5, wherein the single layer of permeable fabric is needle punched to produce fuzzy fibers on its surface.
- 12. A synthetic grass surface, wherein the synthetic grass surface comprises a flexible backing member, parallel rows of synthetic ribbons, representing blades of grass, projecting upwardly from the backing member, the rows of ribbons spaced apart from each other, the surface including a relatively thick layer of particulate material on the backing member supporting the ribbons in a relatively upright position relative to the backing member, wherein the relationship of the length of the ribbons and the spacing between the rows is2A≦L such that the length of the ribbons is at least twice the spacing; and the particulate material having a thickness T of substantially ⅔ the length of the ribbons, when A is the spacing between the rows, L is the length of the ribbon measured from the flexible backing and T is the thickness of the layer of particulate material.
- 13. The surface as claimed in claim 12, wherein the ribbons extend between ¼ inch and 1½ inches above the layer of particulate material.
- 14. The surface as claimed in claim 12, wherein each of the ribbons has a width of about ½ inch.
- 15. The surface as claimed in claim 12, wherein the backing member is a single layer of permeable fabric.
- 16. The surface as claimed in claim 12, wherein the backing member is a double layer of permeable fabric.
- 17. The surface as claimed in claim 12, wherein the backing member is a triple layer of permeable fabric.
- 18. A surface as claimed in claim 15, 16, or 17, wherein the backing member comprises one or more layers of fabric, at least one of the layers of fabric being needle punched to produce fuzzy fibers on its surface in order to increase the permeability of the backing member.
- 19. The surface as claimed in claim 17, wherein at least one of the layers of permeable fabric is needle punched to produce fuzzy fibers on its surfaces.
- 20. The surface as defined in claim 12, wherein the dimension A is between ⅝ inch and 2¼ inches, the dimension L is between 1½ and 5 inches.
- 21. The surface as defined in claim 12, wherein the relationship of the length of the ribbons, the spacing between the rows and the thickness of the particulate material is:2A=3/2T=L.
- 22. The surface as defined in claim 12, wherein L is in a range of between 3A and 6A.
- 23. The surface as defined in claim 22, wherein A is in the range of ⅝ inch and 2¼ inches; and L is in the range of 1½ inches to 5 inches.
- 24. A synthetic surface as defined in claim 13, wherein the ribbons extend between ¼ inch and 1 inch above the layer of particulate material.
- 25. A synthetic surface as defined in claim 12, wherein the particulate layer is a mixture of sand and cryogenically ground rubber.
- 26. The synthetic surface as defined in claim 1 or 12, wherein the synthetic surface is a surface for a sports playing field.
- 27. The synthetic surface as defined in claim 12, wherein the synthetic surface is a surface for agricultural crops having a crop growing enhancement material within said particulate material.
- 28. The synthetic surface as defined in claim 27, wherein said ribbons are at least four and one-half inches in length.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2199595 |
Mar 1997 |
CA |
|
CROSS-REFERENCE TO RELATED APPLICATION
This application is a divisional application of U.S. Ser. No. 08/947,881, filed Oct. 9, 1997 now U.S. Pat. No. 6,338,885.
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