Patents Represented by Attorney J. W. Gaines
  • Patent number: 4372408
    Abstract: Clutch-clutch-brake steering unit having hydraulically actuated cylinders for controlling same to control rotation of a track-drive sprocket in a crawler tractor. Specifically, one of the clutch cylinders and a brake cylinder provided in the unit have an inlet-outlet port in common, and are so arranged on a spring-applied-brake, hydraulically-applied-clutch basis that a single pressure signal in the inlet-outlet port alternately operates the cylinders to apply the brake and release the one clutch, to apply the one clutch and release the brake or, by proper modulation, to partially engage either, i.e., slip the clutch or drag the brake to intermediate degrees as desired.
    Type: Grant
    Filed: August 11, 1980
    Date of Patent: February 8, 1983
    Assignee: International Harvester Co.
    Inventor: Probir K. Chatterjea
  • Patent number: 4360122
    Abstract: A cap for a liquid containing vessel has redundant tang portions for engagement with closure ramps of a host tank access filler tube. Sealing engagement between the cap and the filler tube cap retention ramps is enhanced through the utilization of pitched guide surface inclines on one of the tang elements.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: November 23, 1982
    Assignee: International Harvester Co.
    Inventor: Herbert D. Sullivan
  • Patent number: 4354688
    Abstract: 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: Grant
    Filed: March 3, 1981
    Date of Patent: October 19, 1982
    Assignee: International Harvester Co.
    Inventor: William C. Swanson
  • Patent number: 4351397
    Abstract: A vibrating ripper having quadrilateral linkage. The linkage, equipped with a remote hydraulic control therefor for making running adjustments as afforded by a depth actuator cylinder during ripping and possibly, but not necessarily, as afforded by a pitch actuator cylinder which also can be provided, has a raised-carry position and a lowered-rip position in which it has a vibratory rocking action, and defines a pitch axis fixed in the linkage and shifting therewith during depth changes. Strategic upper level placement of an elastic strut connection which is provided, and diagonal placement of the lift or depth cylinder connection to the draft frame or to the ripper beam and shank assembly, locate the pitch axis at the node of the rocking assembly as it vibrates.
    Type: Grant
    Filed: March 10, 1980
    Date of Patent: September 28, 1982
    Assignee: International Harvester Co.
    Inventor: Bernard L. Winker
  • Patent number: 4346763
    Abstract: 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: Grant
    Filed: November 28, 1980
    Date of Patent: August 31, 1982
    Assignee: International Harvester Co.
    Inventors: William C. Swanson, Evert J. Heersink
  • Patent number: 4339139
    Abstract: 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: Grant
    Filed: June 5, 1980
    Date of Patent: July 13, 1982
    Assignee: International Harvester Co.
    Inventor: William C. Swanson
  • Patent number: 4337959
    Abstract: 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: Grant
    Filed: June 5, 1980
    Date of Patent: July 6, 1982
    Assignee: International Harvester Co.
    Inventors: Leonard A. Bettin, William C. Swanson
  • Patent number: 4335561
    Abstract: A cotton harvester (10) is provided with several independently hydraulically adjustable header units (16) that are movable in unison or completely independently responsive to ground plane elevation. A rotary flow divider (30) is positioned between a manual control valve (32) and the header units to control synchronous movement of the units. A plurality of one way check valves (44 and 104) are positioned between the manual control valve and the rotary flow divider (30) and the header units respectively for prioritizing fluid flow from the manual control valve to the adjustable header units.
    Type: Grant
    Filed: November 28, 1980
    Date of Patent: June 22, 1982
    Assignee: International Harvester Co.
    Inventors: William C. Swanson, Jesse H. Orsborn
  • Patent number: 4335894
    Abstract: An agricultural implement having a frame with a pair of wheel assemblies capable of being rotated on the frame by a pair of hydraulic rams to raise and lower the frame relative to the ground. A direction control valve is connected to one end of the ram cylinders and the other ends of the ram cylinders are connected to the direction control valve through a rotary flow divider. A spring-seated check valve is connected across each of the metering gear sets of the rotary flow divider to permit flow to be diverted from a fully extended ram to one that is not yet fully extended.
    Type: Grant
    Filed: June 5, 1980
    Date of Patent: June 22, 1982
    Assignee: International Harvester Co.
    Inventor: William C. Swanson
  • Patent number: 4331208
    Abstract: Crawler tractor adapted for stepless hydromechanical steering by driving. The power train terminates in a novel hydromechanical steering differential delivering its output to an oppositely extending pair of axles at the sides of the tractor, and forced by a differential lock in a straight line locked, primary steering condition thereof to drive the axles at a mechanically fixed 1:1 drive ratio therebetween and, secondarily, forced into differentiating by a variable displacement crossfeeding pair of axle-interconnecting hydrostatic pump/motor units during all turns so as to selectively drive either axle only at some hydrostatically fixed reduction drive ratio to the other.
    Type: Grant
    Filed: March 10, 1980
    Date of Patent: May 25, 1982
    Assignee: International Harvester Co.
    Inventors: C. Paul Kolthoff, Joachim Horsch, John W. Gaines
  • Patent number: 4327540
    Abstract: A cotton harvester is provided with a hydraulic system incorporating a multiple segment rotary flow divider interposed between a source of fluid pressure and a plurality of header unit lift cylinders. A variable orifice valve assembly is arranged parallel to the header unit lift cylinders and is responsive to undulations in the ground plane for raising and lowering individual header units.
    Type: Grant
    Filed: November 28, 1980
    Date of Patent: May 4, 1982
    Assignee: International Harvester Company
    Inventor: William C. Swanson