Shear with adjustable blade spacing

Details Shear with adjustable blade spacing Shear with adjustable blade spacing

1995-04-06

1996-11-12

Melius, Terry Lee

Harvesters

Cutting

Cutter members

56242, 56304, A01D 108

Patent

active

055728570

ABSTRACT:
A shear capable of cutting weeds close to the ground, without cutting grass in the presence of the weeds, is described. The shear can be implemented as a battery operated hand held device or as a shear mounted on a lawn mower. The shear operates by maintaining a spacing between the blades such that the flexible grass will only be bent between the blades. Weeds which have a thicker and stiffer shaft than the grass will be cut, thus functioning as a selective mechanical herbicide.

REFERENCES:
patent: 383057 (1888-05-01), Kendrick
patent: 3099125 (1963-07-01), Turner
patent: 3121303 (1964-02-01), Tomlinson et al.
patent: 3199279 (1965-08-01), Yeske
patent: 3203162 (1965-08-01), Blaauw et al.
patent: 3722196 (1973-03-01), Templeton
patent: 3802171 (1974-04-01), Cousino
patent: 4553380 (1985-11-01), O'Halloran
patent: 4593800 (1986-06-01), Ness et al.
patent: 5048276 (1991-09-01), Miller

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