Earth working – Draft – pitch or ground level responsive depth control
Patent
1993-04-14
1995-09-19
Nicholson, Eric K.
Earth working
Draft, pitch or ground level responsive depth control
172311, 172464, 172264, 172317, 267 34, A01B 6322
Patent
active
054509084
ABSTRACT:
A tillage implement has its residue incorporating gangs of discs hydraulically adjustable on-the-go to vary the extent of residue incorporation. Cylinders connected with the gangs are of matching volumetric capacities and are connected in a series hydraulic arrangement so that all of the cylinders operate in unison and in equal amounts. Each cylinder has a rod that extends through the entire length of the cylinder and projects outwardly from opposite ends thereof. Each cylinder is also provided with a relief spring coiled about its exterior and trapped between a lower shoulder on the cylinder and an upper slip collar that is trunnion-mounted to the attaching bracket of the implement frame, thus permitting the cylinder to slip upwardly through the collar under the resistance of the relief spring when an obstacle is encountered by the incorporating discs.
REFERENCES:
patent: 3266230 (1966-08-01), Rowbotham
patent: 3583284 (1971-06-01), Ryan
patent: 3663032 (1972-05-01), Hook et al.
patent: 4506898 (1985-03-01), Herron
patent: 4553608 (1985-11-01), Miskin
patent: 4724910 (1988-02-01), Wheeler
patent: 4736931 (1988-04-01), Christopherson
patent: 4762183 (1988-08-01), Bourgault et al.
patent: 4821806 (1989-04-01), Winter
patent: 4828237 (1989-05-01), Neff
patent: 4840233 (1989-06-01), Friggstad
patent: 4883127 (1989-11-01), Chevrier
patent: 4930580 (1990-06-01), Fuss et al.
patent: 4967851 (1990-11-01), Barber
patent: 5161622 (1992-11-01), Godbersen
patent: 5255591 (1993-10-01), Gottlieb
Krause Brochure "Landsman" Rigid, 10-15 Ft.; 3 Section, 18-31 Ft., 5 Section, 36-42 Ft.; 6100 Series One-Trip Tillage Implement, Form No. KR5M1292.
Hagman Rodney L.
Pfenninger Bill J.
Krause Plow Corporation, Inc.
Nicholson Eric K.
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