Patents Assigned to HydraForce, Inc.
  • Publication number: 20190316692
    Abstract: A balancing valve includes four ports. While the pressures at a pair of balancing ports of a hydraulic balancing valve are equal, the valve maintains two other ports in a closed position. Upon a pressure differential between the balancing ports, fluid communication can occur between one of the balancing ports and either of the other ports based upon the direction of the pressure differential. A hydraulic ride control system utilizes the balancing valve together with other control valves to provide ride control functionality.
    Type: Application
    Filed: April 17, 2019
    Publication date: October 17, 2019
    Applicant: HydraForce, Inc.
    Inventors: Travis Schmidt, James Draffkorn, Barry German
  • Patent number: 10378559
    Abstract: A hydraulic suspension system includes a suspension cylinder, a pump, and a control valve therebetween. The control valve includes a spool reciprocally movable between a pump flow position and a tank flow position in which a control port of the control valve is in communication with a pump and a tank, respectively. A piloted logic element in fluid communication with and interposed between the control valve and the suspension cylinder is selectively movable between a through-flow position in which fluid can flow in either direction between a chamber of the suspension cylinder and the control port of the control valve and a blocked position in which fluid is prevented from flowing in or out of the chamber of the suspension cylinder. The logic element is biased to the blocking position, moving to the through-flow position when subjected to a crack pressure delivered from the control port of the control valve.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: August 13, 2019
    Assignee: HydraForce, Inc.
    Inventors: Markus Bissbort, Joel Mekkes, Damiano Roberti, Tomasz Slawinski
  • Patent number: 9964965
    Abstract: A proportional motion control valve includes an electro-mechanical actuator that provides an infinitely controlled pressure setting in response to an electric signal applied to the electro-mechanical actuator. In another aspect, a proportional motion control valve includes a pilot-operated valve disposed intermediately with respect to a cage and a valve body to fluidly isolate an internal cavity of the valve body from a bore of the cage. The pilot-operated valve is subjected to a hydraulic opening force of pilot fluid that is present in the bore of the cage. A spring is disposed within the internal cavity of the valve body and arranged to subject the pilot-operated valve to a closing spring force.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: May 8, 2018
    Assignee: HydraForce, Inc.
    Inventors: David Dornbach, Anthony Casale, Tomasz Slawinski
  • Patent number: 9657749
    Abstract: A hydraulic suspension system includes a suspension cylinder, a pump, and a control valve therebetween. The control valve includes a spool reciprocally movable between a pump flow position and a tank flow position in which a control port of the control valve is in communication with a pump and a tank, respectively. A piloted logic element in fluid communication with and interposed between the control valve and the suspension cylinder is selectively movable between a through-flow position in which fluid can flow in either direction between a chamber of the suspension cylinder and the control port of the control valve and a blocked position in which fluid is prevented from flowing in or out of the chamber of the suspension cylinder. The logic element is biased to the blocking position, moving to the through-flow position when subjected to a crack pressure delivered from the control port of the control valve.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: May 23, 2017
    Assignee: HydraForce, Inc.
    Inventors: Markus Bissbort, Joel Mekkes, Damiano Roberti, Tomasz Slawinski
  • Patent number: 9322416
    Abstract: A hydraulic suspension system includes a suspension cylinder, a pump, and a control valve therebetween. The control valve includes a spool reciprocally movable between a pump flow position and a tank flow position in which a control port of the control valve is in communication with a pump and a tank, respectively. A piloted logic element in fluid communication with and interposed between the control valve and the suspension cylinder is selectively movable between a through-flow position in which fluid can flow in either direction between a chamber of the suspension cylinder and the control port of the control valve and a blocked position in which fluid is prevented from flowing in or out of the chamber of the suspension cylinder. The logic element is biased to the blocking position, moving to the through-flow position when subjected to a crack pressure delivered from the control port of the control valve.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: April 26, 2016
    Assignee: HydraForce, Inc.
    Inventors: Markus Bissbort, Joel Mekkes, Damiano Roberti, Tomasz Slawinski
  • Publication number: 20140299197
    Abstract: A proportional motion control valve includes an electro-mechanical actuator that provides an infinitely controlled pressure setting in response to an electric signal applied to the electro-mechanical actuator. In another aspect, a proportional motion control valve includes a pilot-operated valve disposed intermediately with respect to a cage and a valve body to fluidly isolate an internal cavity of the valve body from a bore of the cage. The pilot-operated valve is subjected to a hydraulic opening force of pilot fluid that is present in the bore of the cage. A spring is disposed within the internal cavity of the valve body and arranged to subject the pilot-operated valve to a closing spring force.
    Type: Application
    Filed: June 20, 2014
    Publication date: October 9, 2014
    Applicant: HYDRAFORCE, INC.
    Inventors: David DORNBACH, Anthony CASALE, Tomasz SLAWINSKI
  • Publication number: 20140251470
    Abstract: A hydraulic suspension system includes a suspension cylinder, a pump, and a control valve therebetween. The control valve includes a spool reciprocally movable between a pump flow position and a tank flow position in which a control port of the control valve is in communication with a pump and a tank, respectively. A piloted logic element in fluid communication with and interposed between the control valve and the suspension cylinder is selectively movable between a through-flow position in which fluid can flow in either direction between a chamber of the suspension cylinder and the control port of the control valve and a blocked position in which fluid is prevented from flowing in or out of the chamber of the suspension cylinder. The logic element is biased to the blocking position, moving to the through-flow position when subjected to a crack pressure delivered from the control port of the control valve.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 11, 2014
    Applicant: HYDRAFORCE, INC.
    Inventors: Markus BISSBORT, Joel MEKKES, Damiano ROBERTI, Tomasz SLAWINSKI
  • Publication number: 20140250877
    Abstract: A hydraulic suspension system includes a suspension cylinder, a pump, and a control valve therebetween. The control valve includes a spool reciprocally movable between a pump flow position and a tank flow position in which a control port of the control valve is in communication with a pump and a tank, respectively. A piloted logic element in fluid communication with and interposed between the control valve and the suspension cylinder is selectively movable between a through-flow position in which fluid can flow in either direction between a chamber of the suspension cylinder and the control port of the control valve and a blocked position in which fluid is prevented from flowing in or out of the chamber of the suspension cylinder. The logic element is biased to the blocking position, moving to the through-flow position when subjected to a crack pressure delivered from the control port of the control valve.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 11, 2014
    Applicant: HYDRAFORCE, INC.
    Inventors: Markus BISSBORT, Joel MEKKES, Damiano ROBERTI, Tomasz SLAWINSKI
  • Patent number: 8757208
    Abstract: A proportional motion control valve includes an electro-mechanical actuator that provides an infinitely controlled pressure setting in response to an electric signal applied to the electro-mechanical actuator. In another aspect, a proportional motion control valve includes a pilot-operated valve disposed intermediately with respect to a cage and a valve body to fluidly isolate an internal cavity of the valve body from a bore of the cage. The pilot-operated valve is subjected to a hydraulic opening force of pilot fluid that is present in the bore of the cage. A spring is disposed within the internal cavity of the valve body and arranged to subject the pilot-operated valve to a closing spring force.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: June 24, 2014
    Assignee: HydraForce, Inc.
    Inventors: David Dornbach, Anthony Casale, Tomasz Slawinski
  • Patent number: 8253063
    Abstract: A method of making a solenoid actuator by laser direct metal deposition can comprise heating with a laser an outer surface of a circumferential groove of a solenoid tube blank constructed of a first material to create a heated area and depositing a second material upon the heated area to form a layer of second material. The second material can melt and then cool to thereby bond to the solenoid tube blank. A bore can be defined in the solenoid tube blank such that the bore includes an interior surface having a ring of second material disposed between a pair of portions of first material.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: August 28, 2012
    Assignee: HydraForce, Inc.
    Inventors: Dan Alexander, Aditya Ashok Parikh, Kevin Cassaidy, Jaklin Yoesep
  • Publication number: 20110139260
    Abstract: A proportional motion control valve includes an electro-mechanical actuator that provides an infinitely controlled pressure setting in response to an electric signal applied to the electro-mechanical actuator. In another aspect, a proportional motion control valve includes a pilot-operated valve disposed intermediately with respect to a cage and a valve body to fluidly isolate an internal cavity of the valve body from a bore of the cage. The pilot-operated valve is subjected to a hydraulic opening force of pilot fluid that is present in the bore of the cage. A spring is disposed within the internal cavity of the valve body and arranged to subject the pilot-operated valve to a closing spring force.
    Type: Application
    Filed: December 10, 2010
    Publication date: June 16, 2011
    Applicant: HydraForce, Inc.
    Inventors: David Dornbach, Anthony Casale, Tomasz Slawinski
  • Patent number: 7921880
    Abstract: An integrated three-way poppet valve is disclosed with an intermediate pilot port and an integral load holding check valve. The valve incorporates a reverse flow check poppet for load hold capability, which enables a lower cost solution compared to a combination of valves of similar functionality. A control method is also disclosed using an integrated three-way poppet valve to control the flow of hydraulic oil to a cylinder, hydraulic motor, or other hydraulic device in proportion to the amount of a current applied to a solenoid coil. Depending on the current applied, the valve blocks all flow or else permits flow from one inlet port to two outlet ports proportional to the current applied.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: April 12, 2011
    Assignee: HydraForce, Inc.
    Inventors: Randall S. Jackson, Anthony Casale, Jeff Oligmueller
  • Publication number: 20100024200
    Abstract: A method of making a solenoid actuator by laser direct metal deposition can comprise heating with a laser an outer surface of a circumferential groove of a solenoid tube blank constructed of a first material to create a heated area and depositing a second material upon the heated area to form a layer of second material. The second material can melt and then cool to thereby bond to the solenoid tube blank. A bore can be defined in the solenoid tube blank such that the bore includes an interior surface having a ring of second material disposed between a pair of portions of first material.
    Type: Application
    Filed: July 24, 2009
    Publication date: February 4, 2010
    Applicant: HydraForce, Inc.
    Inventors: Dan Alexander, Aditya Ashok Parikh, Kevin Cassaidy, Jaklin Yoesep
  • Publication number: 20090050222
    Abstract: An integrated three-way poppet valve is disclosed with an intermediate pilot port and an integral load holding check valve. The valve incorporates a reverse flow check poppet for load hold capability, which enables a lower cost solution compared to a combination of valves of similar functionality. A control method is also disclosed using an integrated three-way poppet valve to control the flow of hydraulic oil to a cylinder, hydraulic motor, or other hydraulic device in proportion to the amount of a current applied to a solenoid coil. Depending on the current applied, the valve blocks all flow or else permits flow from one inlet port to two outlet ports proportional to the current applied.
    Type: Application
    Filed: August 20, 2007
    Publication date: February 26, 2009
    Applicant: HydraForce, Inc.
    Inventors: Randall S. Jackson, Anthony Casale, Jeff Oligmueller
  • Patent number: 7261030
    Abstract: A hydraulic circuit is disclosed that can include a flow control element, a pressure compensator connected via a pair of load sense lines to an inlet line and an outlet line, respectively, of a flow control element to provide a constant pressure drop across the flow control element, and a load sense line control valve installed in a load sense line to provide controllable resistance in a flow passage in opposite flow directions, the resistance in each flow direction being different. The load sense line control valve can include a restrictive orifice followed by a spring-loaded check valve in a first flow direction and at least one other restrictive orifice and a check valve in a second flow direction, the second flow direction opposing the first flow direction.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: August 28, 2007
    Assignee: HydraForce, Inc.
    Inventors: Zilek Liberfarb, Aleksandr Gershik, Michael Cannestra
  • Patent number: 7137406
    Abstract: A self-cleaning filter for use in a valve is disclosed. The valve can include a bore, an orifice disposed in the bore for accommodating a fluid flow therethrough, and a filter disposed in the bore between the input port of the fluid flow being filtered and the orifice being protected. The filter can include an entrance head in predetermined spaced relationship with the bore of the valve to define a filter entrance and a body portion. The entrance head can be configured to prevent particles of a predetermined size from entering the filter entrance. The body portion can include at least a portion that has a different shape than the entrance head which cooperates with the bore to define a fluid passage. The fluid passage can have an exit port which is communicable with the orifice to send filtered fluid to the orifice. The filter can include an offset portion which extends beyond an end face of the bore which is useful to develop pressure gradients which provide for a self-cleaning function.
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: November 21, 2006
    Assignee: HydraForce, Inc.
    Inventors: Tomasz Slawinski, Valeriy Kazak
  • Patent number: 7069945
    Abstract: A cartridge relief valve uses a piston design. The piston replaces a tube used in prior art relief valves. The piston makes the inventive relief valve easier to manufacture and more stable than prior art relief valves. This is due to the fact that, for a given size valve, the diameter of the piston is smaller than the diameter of the tube that it replaces. Furthermore, the diameter of the pilot seat of the inventive relief valve is also smaller than the diameter of the pilot seat of many prior art valves.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: July 4, 2006
    Assignee: HydraForce, Inc.
    Inventors: Tomasz Slawinski, Jianping Chen
  • Patent number: 7063100
    Abstract: A flow regulator with pressure relief combination valve is disclosed which can include a housing and a valve assembly. The housing can have a chamber and four ports. A cage, having a plurality of cross holes, is supported by the housing. A hollow spool is slidably disposed within the cage and is biased to engage the cage. A shoulder of the cage and a counterbore of the spool cooperate to interferingly retain an insert. A poppet is slidably disposed inside of the cage. The valve assembly includes an adaptor, a spring disposed within the adaptor, a guide disposed between the spring and the poppet, and an adjuster adjustably secured to the adaptor. The spring is arranged to bias the poppet against a seat via the guide. The adjustor is movable to adjust the position of the spring.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: June 20, 2006
    Assignee: HydraForce Inc.
    Inventor: Zilek Liberfarb
  • Publication number: 20060086244
    Abstract: A hydraulic circuit is disclosed that can include a flow control element, a pressure compensator connected via a pair of load sense lines to an inlet line and an outlet line, respectively, of a flow control element to provide a constant pressure drop across the flow control element, and a load sense line control valve installed in a load sense line to provide controllable resistance in a flow passage in opposite flow directions, the resistance in each flow direction being different. The load sense line control valve can include a restrictive orifice followed by a spring-loaded check valve in a first flow direction and at least one other restrictive orifice and a check valve in a second flow direction, the second flow direction opposing the first flow direction.
    Type: Application
    Filed: September 9, 2005
    Publication date: April 27, 2006
    Applicant: HydraForce, INc.
    Inventors: Zilek Liberfarb, Aleksandr Gershik, Michael Cannestra
  • Patent number: 6966329
    Abstract: A proportional, pilot-operated flow control valve is disclosed which can include a cage, a hollow compensating spool slidably disposed within the cage, a hollow metering guide member slidably disposed within the compensating spool, a regulating spool slidably disposed within the guide member, a dampening guide slidably disposed inside the compensating spool to define a dampening chamber, a compensating spring disposed inside the dampening chamber and arranged to urge the dampening guide to engage the metering guide and the compensating spool to engage the cage, a regulating spring disposed inside the regulating spool and urging the regulating spool to abut the dampening guide, and a cartridge, the cartridge having a pilot valve assembly and an adaptor, the adaptor mounted to the cage, the pilot valve assembly mounted to the adaptor, the pilot valve assembly including an actuator.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: November 22, 2005
    Assignee: HydraForce, Inc.
    Inventor: Zilek Liberfarb