Inventor
PFAFF JOSEPH L
US37 patents
⚠️ This page may combine multiple inventors who share the name “PFAFF JOSEPH L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HUSCO INT INC
25 patentsUS7487707B2Feb 10, 2009
Hydraulic valve assembly with a pressure compensated directional spool valve and a regeneration shunt valve
HUSCO INT INC63 citations98
US6745992B2Jun 8, 2004
Pilot operated control valve having a poppet with integral pressure compensating mechanism
HUSCO INT INC72 citations97
US6880332B2Apr 19, 2005
Method of selecting a hydraulic metering mode for a function of a velocity based control system
HUSCO INT INC62 citations96
US6732512B2May 11, 2004
Velocity based electronic control system for operating hydraulic equipment
HUSCO INT INC63 citations96
US6715402B2Apr 6, 2004
Hydraulic control circuit for operating a split actuator mechanical mechanism
HUSCO INT INC60 citations96
US7823379B2Nov 2, 2010
Energy recovery and reuse methods for a hydraulic system
HUSCO INT INC46 citations92
US7406982B2Aug 5, 2008
Hydraulic system control method using a differential pressure compensated flow coefficient
HUSCO INT INC25 citations92
US7380398B2Jun 3, 2008
Hydraulic metering mode transitioning technique for a velocity based control system
HUSCO INT INC22 citations92
US7296404B2Nov 20, 2007
Apparatus for controlling deceleration of hydraulically powered equipment
HUSCO INT INC34 citations92
US6763661B2Jul 20, 2004
Apparatus and method for providing vibration to an appendage of a work vehicle
HUSCO INT INC24 citations92
US6705079B1Mar 16, 2004
Apparatus for controlling bounce of hydraulically powered equipment
HUSCO INT INC46 citations92
US7089733B1Aug 15, 2006
Hydraulic control valve system with electronic load sense control
HUSCO INT INC41 citations88
US7093383B2Aug 22, 2006
Automatic hydraulic load leveling system for a work vehicle
HUSCO INT INC30 citations86
US7377480B2May 27, 2008
Electrohydraulic valve servomechanism with adaptive resistance estimator
HUSCO INT INC11 citations84
US6976357B1Dec 20, 2005
Conduit loss compensation for a distributed electrohydraulic system
HUSCO INT INC17 citations84
US6779340B2Aug 24, 2004
Method of sharing flow of fluid among multiple hydraulic functions in a velocity based control system
HUSCO INT INC19 citations84
US9303387B2Apr 5, 2016
Hydraulic system with open loop electrohydraulic pressure compensation
HUSCO INT INC10 citations82
US7753078B2Jul 13, 2010
Hybrid hydraulic joystick with an integral pressure sensor and an outlet port
HUSCO INT INC8 citations82
US6640163B1Oct 28, 2003
Operating system for a programmable controller of a hydraulic system
HUSCO INT INC16 citations77
US7753077B2Jul 13, 2010
Hybrid hydraulic joystick for electrically operating valves
HUSCO INT INC7 citations70
US7373869B2May 20, 2008
Hydraulic system with mechanism for relieving pressure trapped in an actuator
HUSCO INT INC4 citations63
US7210291B2May 1, 2007
Priority communication protocol for a distributed electrohydraulic system having multiple controllers
HUSCO INT INC2 citations63
US7194855B2Mar 27, 2007
Communication protocol for a distributed electrohydraulic system having multiple controllers
HUSCO INT INC4 citations63
US10268214B2Apr 23, 2019
Systems and methods for electrohydraulic valve calibration
HUSCO INT INC0 citations42
US9752597B2Sep 5, 2017
Metered fluid source connection to downstream functions in PCLS systems
HUSCO INT INC0 citations31
INCOVA TECHNOLOGIES INC
4 patentsUS7905088B2Mar 15, 2011
Energy recovery and reuse techniques for a hydraulic system
INCOVA TECHNOLOGIES INC64 citations97
US7874152B2Jan 25, 2011
Hydraulic system with compensation for kinematic position changes of machine members
INCOVA TECHNOLOGIES INC14 citations84
US7857281B2Dec 28, 2010
Electrohydraulic valve control circuit with magnetic hysteresis compensation
INCOVA TECHNOLOGIES INC13 citations84
US7984890B2Jul 26, 2011
Pilot operated valve with fast closing poppet
INCOVA TECHNOLOGIES INC18 citations77
BRIGGS & STRATTON CORP
3 patentsPFAFF JOSEPH L
3 patentsUS8256739B2Sep 4, 2012
Poppet valve operated by an electrohydraulic poppet pilot valve
PFAFF JOSEPH L12 citations83
US8215107B2Jul 10, 2012
Flow summation system for controlling a variable displacement hydraulic pump
PFAFF JOSEPH L9 citations82
US9032724B2May 19, 2015
Command based method for allocating fluid flow from a plurality of pumps to multiple hydraulic functions
PFAFF JOSEPH L11 citations81