Patent EP0185645A2 successfully refreshed from Google Patents.
EP0185645A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Rapid draining artificial turf playing field
Assignee: Monsanto Co
•
Filing: 1985-12-16
•
Granted: —
•
Expires: 2005-12-16
Abstract
Abstract A rapid drying playing field of water-permeable artificial turf adhered to a perforated closed-cell, polymeric foam pad which is loose laid on a sloped impervious base to form an interface there-between. Rain water permeates the artificial turf and pad and flows in the interface under the floating turf and pad.
Inventors
- 👤 Kearney Dale Arrant
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 09:48
CPC Classifications
E; E01; E01C; E01C13/00; E01C13/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
89 words
An artificial turf playing field comprising a laminate of an upper layer of water permeable artificial turf adhered to a perforated lower layer of a closed cell, polymeric foam, shock absorbing pad having a substantially flat lower surface; said pad being loose laid on a sloped non-permeable base to form an interface therebetween; wherein said laminate has a specific gravity less than water, whereby rain water falling on said playing field can permeate said laminate, causing said laminate to float on a layer of water flowing in said interface.
Claim 2
Dependent Claim
89 words
An artificial turf playing field comprising a laminate of an upper layer of water permeable artificial turf adhered to a perforated lower layer of a closed cell, polymeric foam, shock absorbing pad having a substantially flat lower surface; said pad being loose laid on a sloped non-permeable base to form an interface therebetween; wherein said laminate has a specific gravity less than water, whereby rain water falling on said playing field can permeate said laminate, causing said laminate to float on a layer of water flowing in said interface.
Claim 3
Dependent Claim
23 words
The playing field of claim 1 wherein said pad has a thickness greater than the head of water required to float said laminate.
Claim 4
Dependent Claim
22 words
The playing field of claim 2 wherein a major portionø of said base has a slope of at least about one percent.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.