Plant husbandry – Ornamental beds
Patent
1996-02-02
1996-11-26
Raduazo, Henry E.
Plant husbandry
Ornamental beds
47 25, 47 58, A01G 1300
Patent
active
055773435
ABSTRACT:
A mowing template for protecting tree trunks against damage from a wheeled lawnmower, and for controlling vegetation growth at the tree trunk; comprising a circular ring of opaque, tough material defining a short vertical wall having a rounded or otherwise smooth bottom edge, a smooth outer surface, and an open interior for concentric placement about a tree trunk. The ring rests encircling the tree trunk unattached to the tree or ground, and may slide on the grass and ground surface when pushed against by a lawnmower. The ring includes at least one break or split in the wall allowing opening of the ring for the initial placement about the tree, with the break being closeable and lockable. The open interior of the ring is sized in diameter relative to the diameter of the tree trunk to allow the ring to be pushed toward the tree by the lawnmower at least a distance equal to the mowing set-back of the lawnmower. The set-back of the lawnmower is defined as the distance between the outermost cutting edge of the mower blade and the outermost portion of the mower near the ground beyond the blade edge which would abut a vertical surface preventing the blade from being moved any closer to the vertical surface. Such outermost portions of the lawnmower include the wheels and the blade shroud, and it is these parts of the lawnmower which can nick, cut and bruise an unprotected tree trunk.
REFERENCES:
patent: 44238 (1864-09-01), Towne
patent: 425890 (1890-04-01), Landis
patent: 514306 (1884-02-01), Clines
patent: 1764442 (1930-06-01), Hansen
patent: 3396488 (1968-08-01), Ries
patent: 4642938 (1987-02-01), Georges
patent: 4845889 (1989-07-01), Taylor
patent: 4934093 (1990-06-01), Yanna
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