Three Or More Adjustable Wheels On Different Axles Interconnected Patents (Class 172/401)
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Patent number: 11058043Abstract: An agricultural implement system that includes a first toolbar section, a first row unit coupled to the first toolbar section, a second toolbar section, a second row unit coupled to the second toolbar section, and a row unit position control system. The system includes a sensor that detects an angle of the second toolbar section with respect to the first toolbar section. A controller couples to the sensor. The controller raises the first row unit and/or the second row unit in response to the angle to block contact of the first row unit and/or the second row unit with the ground.Type: GrantFiled: October 2, 2018Date of Patent: July 13, 2021Assignee: CNH Industrial America LLCInventor: Ling Wang
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Patent number: 8261845Abstract: A tillage machine has an undercarriage that utilizes a triple axle walking beam wheel assembly for each load-supporting wheel assembly of the center section of the machine. Hydraulically powered lift arms are connected with the wheel assemblies to raise and lower the chassis of the machine as the wheel arms are swung downwardly and upwardly relative to the chassis. Each wheel assembly includes a primary walking beam pivoted to the lower end of the wheel arm, and a secondary walking beam pivoted to the rear end of the primary beam. A single front wheel is disposed at the front end of the primary beam, while a pair of wheels are disposed on the secondary beam on opposite fore-and-aft sides of the pivot connection with the primary beam.Type: GrantFiled: April 14, 2009Date of Patent: September 11, 2012Assignee: AGCO CorporationInventor: Nelson J. Palen
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Patent number: 5829535Abstract: An agricultural apparatus comprises a main frame with ground wheels supporting the frame for movement across the ground and a plurality of ground engaging openers mounted on the frame for engaging the ground. Each opener includes a depth control wheel mounted on the opener frame member for movement in a direction for varying the height of the depth control wheel on the opener frame member to vary the depth of the opener element in the ground. A common adjustment apparatus for all the depth control wheels comprises an actuator, a common drive linkage mounted on the main frame and driven by the actuator and a plurality of individual adjustment members. A cam plate operable by the adjustment member. The depth control wheel is mounted on an arm on which is pivotally mounted on the opener frame member on a first pivot pin, the arm including a portion thereof for engaging the cam plate.Type: GrantFiled: June 20, 1997Date of Patent: November 3, 1998Inventor: Douglas Line
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Patent number: 5487429Abstract: A spring tooth harrow packer comprising a transversely extending draw bar which is wheel supported and which has a hitch extending forwardly therefrom for attachment to a tractor. A plurality of harrow sections are secured to the draw bar and are positioned rearwardly thereof which each of the harrow sections including a plurality of ground engaging spring teeth. A packer is mounted on the rearward end of each of the harrow sections and is pivotally secured thereto for selectively controlling the penetration depth of the teeth of the associated harrow section.Type: GrantFiled: September 9, 1994Date of Patent: January 30, 1996Inventor: Michael B. Gates
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Patent number: 4840233Abstract: A height adjusting mechanism for a framework that supports a multiplicity of ground working tools of an agricultural implement operating at variable depths of ground penetration is disclosed. The variability is acheived by rotation of framework supporting rock shafts pivoting around pivot points on wheel supported wheel frames, which in turn support the rock shafts; rotation causes the lateral spacing of the wheels to vary also. Additionally, flexibility of the framework optionally is provided by having certain fastenings and pivotal attachments between framework members in the form of resilient connections. The novel flexible framework is not critical to operation of the height adjusting mechanism, the latter being operable also with rigid framework.Type: GrantFiled: February 12, 1988Date of Patent: June 20, 1989Assignee: Flexi-Coil LimitedInventors: Terrance Friggstad, David R. Hundeby
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Patent number: 4506898Abstract: The double-acting hydraulic cylinders of the lift system are connected in a master-slave series relationship. When the cylinders have been retracted to a predetermined extent, a control valve between the last slave and a primary selector valve of the system is mechanically closed responsive to the arrival of the cylinders at such retracted condition and, simultaneously, the master is prevented from further retraction by either mechanical means or another hydraulic control valve between the master and the primary selector valve. Thus, the cylinders and their interconnecting lines are cut off from inadvertent overcharging, as well as fluid escape, so that all cylinders remain uniformly extended with drift from their established positions. Several circuit arrangements are disclosed, including provision for bleeding off higher than necessary operating pressures tending to become trapped within the cylinders and their associated flow lines after the cylinders have reached the intended point of retraction.Type: GrantFiled: February 2, 1984Date of Patent: March 26, 1985Assignee: Hesston CorporationInventor: Maynard M. Herron
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Patent number: 4487267Abstract: Apparatus for adjusting the depth of operation of a ground working tool on an agricultural apparatus comprises a strap which extends across a plurality of separate frame sections of the apparatus and incorporates a chain coupling which passes around a pulley wheel having an axis of rotation which is horizontal and transverse to the movement of the strap to communicate horizontal movement of the strap to vertical movement of a thrust bar. The thrust bar acts upon the axle of ground wheels so as to adjust the position of the ground wheels relative to the frame section. The ground working tool supported by the frame section is therefore adjusted relative to the ground to increase or decrease the depth of operation on the ground. The ground working tool can comprise an air seed boot and the frame of the apparatus can comprise a plurality of separate sections pivotally connected together to accommodate variations in the terrain.Type: GrantFiled: January 26, 1983Date of Patent: December 11, 1984Assignee: Friggstad Manufacturing Ltd.Inventor: Terrance Friggstad
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Patent number: 4427207Abstract: An implement frame (12) is supported by two pairs of laterally spaced wheels (36, 37 and 38, 39) whose vertical position relative to the frame is controlled by a pair of parallel master cylinders (61, 62) connected to one pair of wheels (36, 37) and a pair of parallel connected slave cylinders (63, 64) connected to the second pair of wheels (38, 39). The master and slave cylinders are series connected to provide even raising and lowering of the implement frame. The parallel connections between corresponding ends of the master and slave cylinders (61, 62, 63, 64) provide a walking beam effect with resulting equal loading on the wheels (36, 37, 38, 39).Type: GrantFiled: November 13, 1981Date of Patent: January 24, 1984Assignee: Allis-Chalmers CorporationInventor: Alexander T. Gafford
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Patent number: 4420167Abstract: The present invention is directed to an assembly for stabilizing a vehicle supported on at least three pairs of wheels or tracks, wherein various pairs of wheels are selectively connected to one another in bogie style so as to reduce tipping movement of the vehicle chassis as the wheels travel over uneven terrain. A second embodiment of the invention discloses means to control the bogies with respect to their direction of rotative movement. Fluid damping means are provided for some or all of the wheels. These damping means are interconnected with longitudinal and diagonal conduits, with pumps and valves placed to control the movement of the fluid medium between the respective damping means.Type: GrantFiled: February 8, 1982Date of Patent: December 13, 1983Inventor: Nils Winblad
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Patent number: 4417747Abstract: A transporter for a pair of transversely elongated agricultural implements (20, 21) having first, mutually remote ends and second ends in abuting apposition, the implements including forward support wheels (36) and arrays (44, 45, 46) of pivotally mounted rearward packer wheels.Type: GrantFiled: May 7, 1981Date of Patent: November 29, 1983Inventor: Gerald T. Johnson
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Patent number: 4387772Abstract: The invention has been designed to be applied to conventional agricultural tillage equipment. The invention provides a new and improved mechanism for lifting and lowering, controlling and maintaining an accurate level of the equipment. It consists of a single hydraulic cylinder powering a scissor-type mechanical principle designed in such a configuration that the power provided by the hydraulic cylinder is transferred to each pivoting axle. The advantage of the device is that it is a relatively light weight arrangement while retaining stability and rigidity of the arrangement in operation.Type: GrantFiled: September 14, 1981Date of Patent: June 14, 1983Inventor: Joseph L. Bourgault
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Patent number: 4354688Abstract: An implement having a rotary flow divider controlling fluid to and from at least two independent hydraulic rams for raising and lowering the implement in a level manner. A counter monitors the revolutions of the flow divider and actuates an electric circuit which controls solenoid valves to stop the implement at the proper height. A cab mounted adjustable count selector is provided to adjust the desired height of the implement.Type: GrantFiled: March 3, 1981Date of Patent: October 19, 1982Assignee: International Harvester Co.Inventor: William C. Swanson
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Patent number: 4346763Abstract: A multi-segment farm implement flexible tool bar or frame is provided with a hydraulic system including a rotary flow divider for raising and lowering each segment of the sectional frame in synchronous movement with the other sections. A mechanical linkage associated with a ground wheel positioning cylinder also activates the hydraulic fluid control system limiting the downward movement of the implement mounted to the sectional frame on its supporting gear.Type: GrantFiled: November 28, 1980Date of Patent: August 31, 1982Assignee: International Harvester Co.Inventors: William C. Swanson, Evert J. Heersink
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Patent number: 4339139Abstract: A hydraulic circuit for synchronous lift of an implement having a center frame and flexibly connected left and right wing frames, each frame having an independent wheel assembly for raising and lowering the associated frame. A rotary flow divider is provided in a parallel connection of hydraulic rams to actuate the wheel assemblies. The flow divider has a section sized to provide the necessary flow to each ram so that all frames are raised and lowered in unison.Type: GrantFiled: June 5, 1980Date of Patent: July 13, 1982Assignee: International Harvester Co.Inventor: William C. Swanson
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Patent number: 4337959Abstract: An implement having a rotary flow divider controlling fluid to and from at least two independent hydraulic rams for raising and lowering the implement in a level manner. A counter totals the revolutions of the flow divider and actuates an electrical circuit which controls solenoid valves to stop the implement at the proper height.Type: GrantFiled: June 5, 1980Date of Patent: July 6, 1982Assignee: International Harvester Co.Inventors: Leonard A. Bettin, William C. Swanson