By Valve For Controlling Fluid-pressure Motor Patents (Class 56/10.9)
  • Patent number: 10462971
    Abstract: A cotton harvester with a hydraulic manifold and at least one hydraulic motor mechanically coupled to a drum and fluidly coupled to the hydraulic manifold, the hydraulic motor configured to selectively rotate the drum. Wherein, the hydraulic manifold is configured to selectively provide any one of a braking force and a torque to the drum through the at least one hydraulic motor.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: November 5, 2019
    Assignee: DEERE & COMPANY
    Inventors: Steven D. Wallestad, James T. Noonan, Charles F. Ostermeier
  • Patent number: 10292331
    Abstract: A draper belt system is provided that includes a first draper frame pivotally coupled to a second draper frame at a pivot joint. The pivot joint includes a central longitudinal axis about which rotation at the pivot joint occurs. The draper belt system includes a draper belt assembly including a first roller rotatably coupled to the first draper frame, a second roller rotatably coupled to the second draper frame, and a third roller rotatably coupled between the first and second draper frames. The third roller includes a central longitudinal axis about which the third roller rotates. The central longitudinal axis of the third roller is the same as the central longitudinal axis of the pivot joint.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: May 21, 2019
    Assignee: CNH Industrial America LLC
    Inventors: Andrew V. Lauwers, Blaine R. Noll, Joshua S. Joyce, Kyle R. Schropp, John J. Conroy, Zachary Long, Craig D. Roberts, James F. Rayfield
  • Patent number: 9788482
    Abstract: A grass mowing machine has a plurality of cutting units, and a diverter valve diverting hydraulic flow from a raise/lower sub-circuit to a mowing sub-circuit when the engine runs at a reduced or economy mode speed and the cutting units are at the lowered position.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: October 17, 2017
    Assignee: DEERE & COMPANY
    Inventors: Paul A. Boruff, Brent G. Rinholm
  • Patent number: 9205752
    Abstract: The present invention is an electrically driven cart. The cart allows one person to do the job of many. The cart features silent running, exceptional power on demand and ergonomical design. The applications for the present invention uses are limitless. They do include big game hauler, farming applications, vendor uses, outdoor uses, indoor uses and many others. The electrically driven cart features variable speed control for either hand, remote speed control, winch, wheel lockouts, front and rear lighting, charge indicator, convenient control panel and a detachedly mounted pneumatic tire. The cart is light weight and can easily be handled by one person in any of the arenas mentioned prior.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: December 8, 2015
    Inventor: Jeffrey R. Bentz
  • Patent number: 9121248
    Abstract: An apparatus, system and method relating to a valve assembly for use in a subterranean well for oil, gas, or other hydrocarbons. The valve assembly comprises an engaging element with a resilient portion having a first shape when a first pressure differential is applied across the engaging element in a direction and a second shape when a second pressure differential is applied across the element in the direction; a receiving element having sealing section; wherein the engaging element is engagable with the first receiving element to substantially prevent the flow of fluids through the sealing section a pressure differential is applied to the engaging element that is less than a first pressure differential; wherein the engaging element is extrudable through the first receiving element by applying a second pressure differential that is greater than the first pressure differential.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: September 1, 2015
    Inventors: Raymond Hofman, William Sloane Muscroft, Bryan Fitzhugh
  • Patent number: 8880299
    Abstract: A combine side-shaking control system and a method for controlling operation of a side-shaking mechanism in a combine. The control system includes at least one sieve for separating crop material from other materials and a movable side-shaking mechanism coupled to the at least one sieve and configured to move the at least one sieve in a side-to-side motion. The control system also includes at least one sensor for sensing at least one operating condition of a combine system. The control system further includes a controller for receiving the at least one operating condition and causing the side-shaking mechanism to stop moving the at least one sieve in the side-to-side motion or start moving the at least one sieve in the side-to-side motion based on the at least one operating condition.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: November 4, 2014
    Assignee: CNH Industrial America LLC
    Inventors: Craig E. Murray, Orlin W. Johnson, Dale W. Panoushek, Tyler L. Nelson, Kevin S. Schwinn, Bin Lou
  • Patent number: 8113033
    Abstract: A simplified method for calibrating a variable-displacement hydraulic PTO system on an agricultural windrower when powering a header wherein the variable-displacement pump is operated at maximum flow capacity while the engine is operated at a pre-determined speed and a flow balance valve is adjusted to achieved a pre-determined cutterbar speed. Operation of the cutterbar at the pre-determined speed allows sufficient hydraulic fluid flow through the remaining parallel fluid circuit to power the remaining equipment, typically a reel, on the header. Controls for managing pump displacement and engine speed as well as indication of cutterbar speed are typically available on the windrower tractor thereby eliminating the need for additional diagnostic equipment and making the method suitable for use in the field.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: February 14, 2012
    Assignee: CNH America LLC
    Inventors: Robert L. Fackler, Timothy W. Rawlings, Jr.
  • Patent number: 8001751
    Abstract: A method of gradually relieving pressure in a hydraulic system of a work machine, wherein a pump in fluid communication with the hydraulic system and a fluid reservoir, is operable for pressurizing fluid from the reservoir and pumping the pressurized fluid into the hydraulic system, wherein the pump is restrictive to fluid flow therethrough when not operating, and the hydraulic system includes at least one valve in fluid communication with the work element configured for receiving the pressurized fluid. The valve is controllably operable in at least two operating modes, including a first mode wherein the pressurized fluid can pass therethrough between the pump and the work element or elements, and a second mode wherein the fluid is prevented from passing between the pump and the work element.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: August 23, 2011
    Assignee: CNH America LLC
    Inventors: Philip J. Ehrhart, Robert L Fackler
  • Publication number: 20110083411
    Abstract: A suspension system for an unloading conveyor of an agricultural harvester vehicle, has a first support configured to hold the unloading conveyor in a vertical unloading position; a second support configured to hold the unloading conveyor in a horizontal unloading position; a control circuit coupled to the first and second supports, wherein the control circuit is configured to selectively engage at least one gas charged hydraulic accumulator to one of the first support and the second support to thereby spring-load the unloading conveyor in the vertical or the horizontal direction (or both).
    Type: Application
    Filed: October 13, 2009
    Publication date: April 14, 2011
    Inventors: Ryan Patrick Mackin, Daniel James Burke, Bruce Alan Coers
  • Patent number: 7415919
    Abstract: A series hydraulic circuit for permitting motorized operation and independent control of a plurality of cutting decks of a mower. The circuit allows separate operation of one of the decks while enabling operation of one or more of the other decks associated with the mower to simultaneously occur.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: August 26, 2008
    Assignee: Deere & Company
    Inventors: Todd Allen Link, Neil Vincent Harber
  • Patent number: 7140169
    Abstract: An agricultural harvesting machine, such as a forage harvester comprises a set of feedrolls (20, 21, 26, 27) for feeding harvested crop material to a rotating cutterhead (36). The feedrolls are driven by a hydraulic drive means comprising a hydrostatic pump (123) coupled to the engine (70) of the harvesting machine, a hydrostatic motor (80) coupled to said feeder means (20, 21, 26, 27) and hydraulic circuitry (142, 143, 152) interconnecting the pump and the motor. The circuitry comprises a feeder arrest valve (165) which is operable to interrupt the oil flow from said hydrostatic motor (80), thereby arresting said feedrolls (20, 21, 26, 27). The hydrostatic motor (80) is provided with a flushing valve (156) for diverting part of the oil flow in said circuitry through said motor for lubricating and cooling the latter. The arrest valve (165) is provided in said circuitry (142, 143, 152) between the hydrostatic motor (80) and the flushing valve (156).
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: November 28, 2006
    Assignee: CNH America LLC
    Inventors: Danny R. Ameye, Stephan P. Deneir
  • Patent number: 6912831
    Abstract: A zero turning radius power lawn mower for operation by a standing occupant includes first and second independently driven and controlled rear drive wheels mounted on separate drive axles. A riding platform for supporting the standing occupant or operator is located between the first and second rear drive wheels. The rear drive wheels are independently driveable in both the forward and reverse directions at variable speeds so as to allow for substantially zero radius turning of the mower about a central turning point. The riding platform is positioned near this turning point or axis so that the standing occupant remains substantially unaffected by centrifugal force created during approximate zero radius is turning of the mower thereby allowing the mower to take such turns at higher speeds. The low center of gravity created by the position of the riding platform for the standing operator also results in the mower having improved traction and being less likely to pop “wheelies” upon acceleration.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: July 5, 2005
    Assignee: Wright Manufacturing, Inc.
    Inventors: James D. Velke, William R. Wright
  • Patent number: 6775966
    Abstract: An integrated combine reel drive system for an agricultural vehicle such as a combine harvester, the drive system having the features of a single integrated hydraulic circuit for activating multiple hydraulic devices carried by the agricultural vehicle. The integrated circuit includes a header circuit, wherein the header circuit includes a steering circuit, an implement circuit, and a reel circuit. The header circuit includes two valve stacks for operating multiple hydraulic devices which enables the integrated circuit to drive the multiple hydraulic devices using manageable hydraulic pressures. Specifically, the integrated hydraulic circuit activates a hydraulic power steering mechanism, a hydraulic header adjusting apparatus and other hydraulic devices associated with the header, a hydraulic drive for the reel, and a hydraulic positioning mechanism for the reel of an agricultural vehicle.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: August 17, 2004
    Assignee: New Holland North America, Inc.
    Inventor: Jeffrey D. Frego
  • Patent number: 6749037
    Abstract: A vehicle driving arrangement with at least two axes, each having at least one driven wheel that can be acted upon with a torque of a motor, the motor/motors of each axis being arranged in a supply line, the supply lines being parallel to each other and connected with a pump device, and a valve arrangement being arranged in at least one supply line. It is desired to improve the operability of a hydraulically driven vehicle. For this purpose, the valve arrangement in one supply line has a pressure reducing valve that limits the pressure difference over the other supply line to a maximum value.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: June 15, 2004
    Assignee: Sauer-Danfoss Holding A/S
    Inventor: Per Nielsen Lindholdt
  • Publication number: 20030230064
    Abstract: A hydraulic system has a frame member having an end. The structural member is pivotally coupled with the frame member end. A first hydraulic cylinder includes a cylinder housing, a ram with a head reciprocally disposed within the housing, a first chamber on one side of the head, and a second chamber on another side of the head. A first end of the first hydraulic cylinder is attached to the frame member. A preload spring has a first end which is attached to the frame member, and a second end which is attached to the second end of the first hydraulic cylinder. A second hydraulic cylinder is coupled between the frame member and the structural member. The second hydraulic cylinder includes a cylinder housing, a ram with a head reciprocally disposed within the housing, a first chamber on one side of the head and a second chamber on another side of the head. A first fluid line interconnects the first chamber of the first and second hydraulic cylinders.
    Type: Application
    Filed: May 22, 2002
    Publication date: December 18, 2003
    Inventors: Walter Mark Schlesser, Timothy J. Kraus
  • Patent number: 6619020
    Abstract: A hydraulic system for a combine and harvesting assembly having a valve mechanism that automatically routes fluid from a combine hydraulic line to a harvesting assembly hydraulic line when the harvesting assembly line is coupled with the combine hydraulic line, and automatically routes fluid from the combine hydraulic line to a hydraulic cylinder that controls the speed of a variable speed sheave of a conveyor drive system when the harvesting assembly hydraulic line is detached from the combine hydraulic line. The valve mechanism also includes a relief valve that allows pressurized fluid from the hydraulic cylinder to flow back to the combine's hydraulic system when the valve is routing fluid from the combine hydraulic line to the harvesting assembly.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: September 16, 2003
    Assignee: Deere & Company
    Inventors: Mark Michael Chaney, Scott Robert Bowers
  • Patent number: 6619021
    Abstract: A combine harvester hydraulic system having a valve which automatically routes hydraulic fluid from a combine fluid supply line to a combine fluid return line when the combine fluid supply line is not coupled to a hydraulic line of a harvesting assembly.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: September 16, 2003
    Assignee: Deere & Company
    Inventors: Mark Michael Chaney, Scott Robert Bowers
  • Patent number: 6557332
    Abstract: A self-propelled combine harvester having a mechanically actuated directional control valve for a hydraulic piston-cylinder unit used for driving the cutter bar in an oscillatory manner. A switching bracket is used to axially move the mechanically actuated directional control valve from a first end position to a second end position and from the second end position to the first end position. A latch is used to periodically latch a piston valve stationary. A first plunger and second plunger are alternatively and axially moved by a first spring and second spring. The first plunger and the second plunger alternatively move the valve piston from the first end position and the second position and from the second position to the first position. The valve piston will be released from the first end position or the second end position one end position from which it was arrested or latched.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: May 6, 2003
    Assignee: CLAAS Industrietechnik GmbH
    Inventor: Karl-Thomas Rhody
  • Patent number: 6494025
    Abstract: A hydraulic system for a detachable implement such as draper platform for a combine utilizes a platform-mounted pump supplied with return oil from the existing reel drive motor. The system utilizes the existing combine hydraulic connection for the reel drive to supply oil to the draper belt drive motors. Oil from the combine powers the reel drive motor and then flows into a manifold block (mixing chamber) before entering the inlet of the draper belt drive pump. This pump is sized to provide sufficient oil flow to power the draper belt drive motors, arranged in series. Return oil from the belt drive motors is routed back to the manifold block where it can mix with incoming oil from the reel drive pump before returning to the combine reservoir or being recirculated to the belt drive motors. The hydraulic system avoids the need to equip the platform with a complete hydraulic system and avoids the need to modify the existing hydraulic system of the combine.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: December 17, 2002
    Assignee: Deere & Company
    Inventors: Dale H. Killen, David Walter Kmoch, Thomas G. Teller
  • Publication number: 20020178709
    Abstract: A zero-turning radius self-propelled power lawn mower includes a standing platform structure for supporting a standing operator during mower operation. The mower has a combination parking brake and pump lockout structure which, when actuated, simultaneously applies a braking force to rear drive wheels and prevents hydro pumps from being moved from their neutral positions. The mower also includes a biasing system for automatically returning hand control levers to their neutral positions when they are not being manipulated by an operator. Unique cutter deck structure, caster structure, grass catcher structure, and steering control levers are also provided.
    Type: Application
    Filed: July 9, 2002
    Publication date: December 5, 2002
    Applicant: Wright Manufacturing, Inc.
    Inventors: James D. Velke, William R. Wright
  • Patent number: 6405514
    Abstract: A turf maintenance equipment unit, such as a riding mower having two side cutting units and a front cutting unit operatively connected to a traction frame. A hydraulic traction system is provided for propelling the traction frame in forward and reverse. This traction system includes a pair of front drive motors and a rear drive motor connected in parallel to a pump. A pressure reducing device limits fluid pressure to the rear drive motor when the traction frame is moving in reverse to increase the climbing ability of the traction frame in reverse.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: June 18, 2002
    Assignee: The Toro Company
    Inventor: Richard J. Guertin
  • Publication number: 20020007621
    Abstract: A silage cutter comprises a fame consisting of first and second frame members which are adapted to be moved relative to one another about a hinge axle by means of drive mechanisms, said drive mechanisms comprising two hydraulic cylinders. The first frame member has a knife attached thereto. The second frame member has provided thereon gripping devices for gripping the silage. A hydraulic device causes the two cylinders always to have the same length.
    Type: Application
    Filed: December 15, 2000
    Publication date: January 24, 2002
    Inventor: Nicolaas Van Der Plas
  • Publication number: 20010022070
    Abstract: The invention describes a hydraulic reel drive wherein the reel motor is driven by a hydraulic pump, which is adjustable in a continuous manner and operates therewith in a closed oil circulating system. The advantage of this arrangement is that the reel always rotates uniformly independently of the instantaneous load thereon. Another advantage thereof is that by using a hydraulic pump, which is adjustable in a continuous manner, only that amount of oil is ever circulated as is required to drive the reel at a predetermined rotational speed.
    Type: Application
    Filed: January 16, 2001
    Publication date: September 20, 2001
    Applicant: CLAAS Selbstfahrende Erntemaschinen GmbH
    Inventors: Gunter Eis, Norbert Strieker