Artificial lawn
AssigneeJ. F. Adolff AG
InventorHans-Joachim Friedrich
Life of this patent
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Abstract
An artificial lawn comprising a base textile fabric, woven or knit with an open weave to which the pile yarns are secured; the fabric back is formed with projections extending from the plane thereof. The base fabric is coated with an adhesive, holding material solely along the projections, leaving the open weave porous for drainage of water. A novel underliner or underlayer is provided having enhanced resiliency and improved porosity. An improved method and apparatus for securing the lawn to the ground is provided.
Claims22
An artificial lawn adapted to be laid on the ground comprising a textile base carrier and a pile affixed thereto forming a turf surface, the yarns of said carrier and said pile being intermeshed with each other to provide structures projecting from the plane of the back side of said carrier and interstices therebetween, the intermeshed yarns of said carrier and said pile being securely adhered together by a coating applied substantially only to said projecting structures, whereby transverse openings through said carrier and horizontal drainage channels are provided along the back side of said carrier.
An artificial structure adapted to be laid on the ground comprising a porous carrier having a turf-like top surface and a water permeable cushion comprising an integrated net-like grid formed of a material of high tensile strength, said grid being provided with an elastic water impermeable coating applied thereto and providing drop-like projecting structure on the underside of said cushion members between its bottom and the ground.
An artificial structure adapted to be laid on the ground comprising a porous base mat having a backing of coated woven or knitted textile provided with a plurality of impermeable drop-like cushion members arranged in a network between its rear surface and the ground, said cushion members being spaced from each other to permit vertical drainage of water through said base mat and horizontal drainage of water over said ground.
An artificial structure adapted to be laid on the ground comprising an open grid base mat formed of a material of high tensile strength, providing vertical drainage for water, said grid being provided with an elastic water impermeable coating applied thereto in an integrated network and providing a discrete drop-like projecting structure on the underside of said underliner forming said cushion members, said drop-like members being spaced from each other to permit horizontal drainage of water over said ground.
The underliner for ground covers, mats, and the like comprising a flexible pile base having a substantially planar upper surface and formed of a vertically porous resilient core of high tensile strength, said core being provided with an elastic water impermeable coating applied thereto and providing projecting structures extending from the lower surface forming a network of spaces between the base and the ground.
A ground cover such as a mat, carpet, or the like, comprising a textile base carrier having a pile tread surface formed of filaments interconnected to provide interstices therebetween and projecting structures on the backside thereof, substantially only said projecting structures being coated with an adhesive material whereby transverse openings and horizontal drainage channels are provided.
Dependencies are inferred from the claim text.