Method for marking grass fields and apparatus for applying such

Details Method for marking grass fields and apparatus for applying such Method for marking grass fields and apparatus for applying such

1996-06-05

1997-10-28

Lisehora, James

Road structure, process, or apparatus

Process

404 75, 404 85, 404 93, E01F 906

Patent

active

056811292

ABSTRACT:
An advertising display method involves marking grass sports fields by bending the grass blades in definite zones and bending or leaving them straight in other zones in order to form an image or a word. The difference in the direction given to the grass blades is quite visible to the spectator. The grass blades are directed by means of an apparatus mounted on rollers which runs on the grass surface. The apparatus also has brushes and/or additional rollers which rotate to straighten the grass blades on definite sectors. The sectors form an image or the letters of a words. The engines which drive the apparatus and the brushes and/or rollers are electrical and are controlled by a computer. The image or word to represent on the grass, as well as the position of the apparatus on the surface to work, are entered in the memory of a computer.

REFERENCES:
patent: 1102443 (1914-07-01), Schamell
patent: 2721405 (1955-10-01), Gardner
patent: 3364665 (1968-01-01), Vigen
patent: 3731468 (1973-05-01), Blumhardt
patent: 4192626 (1980-03-01), Wyckoff et al.
patent: 5076367 (1991-12-01), Reincke
patent: 5337833 (1994-08-01), Rizzo
patent: 5395182 (1995-03-01), Rossburger
patent: 5486067 (1996-01-01), Huynh et al.
patent: 5540516 (1996-07-01), Nicodemo et al.

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