Earth working – With guard – shield or plant diverter
Patent
1987-10-21
1989-04-25
Stouffer, Richard T.
Earth working
With guard, shield or plant diverter
172606, 172719, 172720, 172747, A01B 324, A01B 7108
Patent
active
048238848
ABSTRACT:
The problem of having dirt and debris stick to the shank of a subsoil plow is solved by providing a non-stick cover body that attaches to a lower portion of the shank and is sized and configured and of a material to which dirt and debris will not adhere. Fasteners in the form of staples insert into holes in laterally spaced tail edge portions is provided. The body is made of a sheet of ultra high molecular weight-polyethylene that is sized, and then bent around a mandril, heated, then cooled and machined as required to be generally complementary with the shape of the lower portion of the shank to which the body is fastened.
REFERENCES:
patent: 2361596 (1944-10-01), Broschinski
patent: 2913060 (1959-11-01), Owen et al.
patent: 3126969 (1964-03-01), Sewell
patent: 4206818 (1980-06-01), Beckham et al.
patent: 4321970 (1982-03-01), Thigpen
patent: 4671363 (1987-06-01), Bolinger
Krause Plow Corporation, 3700 Series "Flex-Wing", Sweep Plow Brochure, Hutchinson, KS 67504.
Sunflower Manufacturing Co., Inc., Series 3000 Blade Plows, 4/87, Beloit, KS 67420.
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