In a method for manufacturing a web of a ground covering having a web of pile fabric forming the upper side and cushion elements attached to its underside in grating-type configuration, in order to simplify the manufacturing process, plastic agglomerates corresponding to the cushion elements are produced...http://www.google.de/patents/US5019194?utm_source=gb-gplus-sharePatent US5019194 - Method for manufacturing a web of plastic turf for sports grounds
