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US Patent 5807021 - Ground cover mat manufactured from recycled plastic

US Patent Issued on September 15, 1998
Estimated Patent Expiration Date: Icon_subject November 29, 2015Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
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Abstract

The present invention provides a ground cover mat that protects the terrain from a vehicle or the like. The ground cover mat is manufactured by molding recycled polyethylene plastic into a sheet-like mat, which is inexpensive, relatively light in weight, durable in harsh conditions and easy to cut. The ground cover mat includes a pattern of lugs on its upper and lower surfaces to provide a traction surface for the vehicle and to provide friction between the terrain and the ground cover mat.

Inventor

Application

No. 564590 filed on 11/29/1995

US Classes:

404/19, Anti-slip surface52/177, SPECIFIED WEAR OR FRICTION-TYPE TRAFFIC-CARRYING SURFACE238/14, Traction mats404/35, Portable mat typeD25/163Textured (e.g., pitted, cratered, drilled, etc)

Field of Search

404/19, Anti-slip surface404/35, Portable mat type404/36, Foraminous traffic surface404/44, Composite or compound428/156, Including variation in thickness428/213, Thickness (relative or absolute)D25/163, Textured (e.g., pitted, cratered, drilled, etc)D25/157, Symmetrical pattern or pattern unit (28)D25/158, Three or more repeats, or uniform configuration, about axisD25/159, Consisting entirely of material having uniform thickness238/14, Traction mats52/177SPECIFIED WEAR OR FRICTION-TYPE TRAFFIC-CARRYING SURFACE

Examiners

Primary: Lisehora, James A.

Attorney, Agent or Firm

US Patent References

D95158, D140623, D342330, 937415, 2975977, 3268384, 3701474, 3836075, 3997110, Anti-slipping accessory for traction wheel
Issued on: 12/14/1976
Inventor: Aumont
4111585, Module and modular support for turfgrass and like areas
Issued on: 09/05/1978
Inventor: Mascaro
4133481, Anti-skid device for vehicles
Issued on: 01/09/1979
Inventor: Bennett
4478901, Floor mat construction
Issued on: 10/23/1984
Inventor: Dickens ,   et al.
4572700, Elongated bendable drainage mat
Issued on: 02/25/1986
Inventor: Mantarro ,   et al.
4596731, Grass protecting walkway grid
Issued on: 06/24/1986
Inventor: Cudmore ,   et al.
4629358, Prefabricated panels for rapid runway repair and expedient airfield surfacing
Issued on: 12/16/1986
Inventor: Springston ,   et al.
4787556, Grip plate
Issued on: 11/29/1988
Inventor: Heisson
4998670, Traction mat
Issued on: 03/12/1991
Inventor: Peterson
5250340, Mat for stabilizing particulate materials
Issued on: 10/05/1993
Inventor: Bohnhoff
5439171, Traction mat for vehicles
Issued on: 08/08/1995
Inventor: Fruend
5499888, Bidirectional roadway for wheeled vehicles
Issued on: 03/19/1996
Inventor: Hawkes
5538183Vehicle traction mat
Issued on: 07/23/1996
Inventor: McGee

Foreign Patent References

  • 2-128902 JP 05/21/1990

International Class

B60B 039/12

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