Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7958725 | Drivetrain system having simultaneous displacement control A drivetrain system for use in a mobile machine is disclosed. The drivetrain system may have a first rotary fluid actuator, a second rotary fluid actuator, an input device, and a controller in communication with the first rotary fluid actuator, the second rotary flu... | 06/14/2011 |
| 7954316 | Hydrostatic stepless transmission A hydrostatic stepless transmission comprises: a hydraulic pump; a hydraulic motor, wherein at least one of the hydraulic pump and motor is variable in displacement, and is provided with a movable swash plate; a closed circuit connecting the hydraulic pump and motor... | 06/07/2011 |
| 7779630 | Hydraulic stepless speed changing device It is an object to accurately control swash plate angles of movable swash plates of a hydraulic pump and/or a hydraulic motor. In a hydraulic stepless speed changing device, a hydraulic pump and/or a hydraulic motor, at least one of which is of a variable displaceme... | 08/24/2010 |
| 7571604 | Method for shaking a work implement A method and arrangement for controlling a function of a work implement utilizing a device including a source of pressurized fluid (1), a circuit of pressurized fluid (2) for driving the work implement, an electronically controlled hydraulic valve (... | 08/11/2009 |
| 7549287 | Hydrostatic auto/manual speed control A hydrostatic system and method of operation thereof, wherein at least one of a fluid motor and a pump of the system has a displacement which is variable for controlling a speed of operation of the motor, the pump being driven by an engine, and a controller configur... | 06/23/2009 |
| 7430859 | Fluid pump control system for excavators A fluid pump control system for excavators enables fluid pumps to produce hydraulic flows of a quantity great enough to actuate hydraulic actuators for smooth composite operations. The system includes variable displacement fluid pumps, fluid quantity control mechani... | 10/07/2008 |
| 7415821 | Hydraulic motor unit A hydraulic motor unit including a hydraulic motor (1′) which is connected to two working lines (3,4). The swiveling angle (α) of the hydraulic motor (1′) is adjustable by an adjusting unit (7) which is provided with a regulating pis... | 08/26/2008 |
| 7290390 | Travel control device for excavators A travel control device enables a crawler type hydraulic excavator to start slowly regardless of the preset speed ratio whenever the manipulation amount of a manual travel control device is small. The travel control device includes left and right travel motors respe... | 11/06/2007 |
| 7284371 | Hydraulic control system for working machine A hydraulic control system for a working machine according to the present invention includes a regulator control valve for controlling an operation of a pump regulator and a controller for sending a control signal for changing a discharge quantity of the pump to the... | 10/23/2007 |
| 7275370 | Control arrangement and method for controlling at least two hydraulic consumers Disclosed are a control arrangement for actuation of at least two hydraulic consumers, and a method for actuation of these consumers. The latter are supplied with pressure medium through the intermediary of a pump, wherein a respective meter-in orifice and a pressur... | 10/02/2007 |
| 7269945 | Method for compensating flow rate at neutral position of operation lever of construction equipment A method for compensating a flow rate at a neutral position of an operation lever of construction equipment is adapted so that when RPM of an engine becomes different, an actuator can be identically driven according to an operating amount of the operation lever. The... | 09/18/2007 |
| 7247122 | Downshift in hydrostatic drive work machine The present disclosure provides a hydrostatic drive work machine, and a method and control module having a control algorithm for performing a downshifting event in the work machine. The method includes the step of inducing a retarded mode in the work machine, if upo... | 07/24/2007 |
| 7221116 | Motor control apparatus In an automatic transmission position control by a motor, it is determined whether the present instant belongs to a starting period, that is, the present instant is immediately after resetting of a control unit or application of power to it. If it is the starting pe... | 05/22/2007 |
| 7213672 | Vehicle hydrostatic transmission circuit A hydrostatic transmission circuit for a vehicle having at least two displacement members (12) driven by at least one hydraulic motor (10) having a feed main duct and a discharge main duct (16, 18). Skid control means for controlling skidding of... | 05/08/2007 |
| 7210293 | Hydrostatic transmission vehicle and hydrostatic transmission controller A hydrostatic transmission vehicle comprises: a fuel adjustment position detection portion (681) which detects an operation position of a fuel adjustment portion (68); a deceleration operation position detection portion (691) which detects an op... | 05/01/2007 |
| 7197872 | Hydraulic circuit in work vehicle A hydraulic circuit includes a control valve that controls flow of pressure oil from a hydraulic source to work hydraulic cylinders, an operating device that issues a command for drive of the control valve, valve devices each comprising a check valve, each provided ... | 04/03/2007 |
| 7182097 | Anti-saturation directional control valve composed of two or more sections with pressure selector compensators The invention relates to the field of hydraulic directional control valves and refers to an anti-saturation directional control valve (V) composed of two or more sections in each of whom there is a pressure selector compensator with a six-way two-position spool (... | 02/27/2007 |
| 7178334 | Hydrostatic vehicle drive system comprising a differential lock The invention relates to a hydrostatic vehicle drive system (1) comprising a first and a second hydraulic pump (2, 3), and a first and a second hydraulic motor (7, 12). Said hydraulic pumps (2, 3) and said hydraulic motors (7, 12) ... | 02/20/2007 |
| 7180720 | Failure detection device for hydraulic motor and hydraulic drive vehicle A failure detection device for a hydraulic motor according to the present invention comprises a hydraulic pump 3 that is driven by a prime mover 2; a hydraulic motor 1 for traveling that is driven by hydraulic oil discharged from the hydraulic p... | 02/20/2007 |
| 7171887 | Regulating device for hydrostatic piston machines The invention relates to a regulating device for hydrostatic piston machines consisting of an actuating piston (2) which can be removed between two end positions which can be impinged upon by actuating pressure exerted thereon in an opposite direction. An act... | 02/06/2007 |
| 7155907 | Electro-hydraulic fan drive cooling and steering system for vehicle An electro-hydraulic system for operating a cooling fan and providing hydraulic fluid to a power steering system of the vehicle includes a hydraulic pump unit including first and second fixed displacement pumps and a common drive shaft for these pumps. A hydraulic f... | 01/02/2007 |
| 7134277 | Driving force distribution apparatus for right and left wheels A hydraulic pump of a driving force distribution apparatus for right and left axles includes a pump shaft, a swash plate supported tiltably, swash plate tilting and holding mechanism unit for tilting and holding the swash plate to one side or to the other side depen... | 11/14/2006 |
| 7124576 | Hydraulic energy intensifier Hydraulic circuits used to manipulate tools in, for example construction equipment, uses less power for a retraction of a hydraulic cylinder than for an extension of that cylinder. Provided is a hydraulic circuit that uses the stored energy from the low energy phase... | 10/24/2006 |
| 7126501 | Floating point type digital signal reversible encoding method, decoding method, devices for them, and programs for them Digital signal samples X in a floating-point format, each of which is composed of 1 bit of sign, 8 bits of exponent E and 23 bits of mantissa M, are converted through rounding by an integer formatting part 12 into digital signal samples Y in an integer format... | 10/24/2006 |
| 7117952 | Automated attachment vibration system One embodiment of the present invention pertains to a system, including a mechanical arm, an attachment member, an actuator, a power system, an electronic control, and an operator interface. The attachment member is tiltably mounted on the mechanical arm about a piv... | 10/10/2006 |
| 7082758 | Hydraulic machine, system for monitoring health of hydraulic machine, and method thereof In a hydraulic machine, hydraulic pump failure is detected and the pump lifespan is estimated before the pump failure occurs. The discharge pressure 122, oil temperature 126, and drain filter differential pressure 120 are measured, a correlative... | 08/01/2006 |
| 7080508 | Torque controlled pump protection with mechanical loss compensation A method and apparatus are provided for controlling the operation of a pump, such as a centrifugal pump, featuring steps of either adjusting the operation of the pump, or issues a warning to a user of the pump of an undesirable operating condition, or both, based on... | 07/25/2006 |
| 7077222 | Transaxle apparatus and four-wheel driving working vehicle using the apparatus An articulate vehicle has first and second frames, which are coupled to each other at proximal ends thereof with respect to the vehicle through a coupling part so as to be relatively rotatable around a vertical axis according to steering operation. The first and sec... | 07/18/2006 |
| 7066446 | Hydraulic valve arrangement A hydraulic valve arrangement with a first and a second working connection, both working connections being connectable with a hydraulic consumer, a supply connection having a pressure connection and a tank connection, a first valve, which closes the pressure connect... | 06/27/2006 |
| 7059125 | Hydraulic controller for construction machine In a hydraulic controller for construction machine according to the present invention, wherein there are provided regulators for each of a first and a second capacity variable hydraulic pump, each of the regulators being controlled, detecting the discharge pressure ... | 06/13/2006 |
| 7044257 | Drive system of a utility vehicle A drive system for use in utility vehicles, such as agricultural forage harvesters and combines, includes a hydrostatic transmission having a pump driven by a main engine of the vehicle and having first and second motors respectively coupled to front and rear axles ... | 05/16/2006 |
| 7037236 | Hydraulic transmission vehicle A hydraulic transmission (21) has an electric actuator (86) for changing its output/input rotation speed ratio. A controller 90 of the actuator memorizes a command current value to the actuator supposing that load is not applied on the hydraulic... | 05/02/2006 |
| 7003950 | Electronic control system for a hydraulic pump A system and method for electronically controlling the displacement of hydraulic pumps, IHTs or HSTs. The IHT and HST includes a hydraulic transmission mounted within the casing that includes a rotatable hydraulic pump in fluid communication with a rotatable hydraul... | 02/28/2006 |
| 6981371 | Control device for working machine A control device for a working machine according to the present invention comprises a capacity variable pump for supplying working oil, a controller for controlling the discharge amount of the pump, a control valve for controlling the working oil discharged from the... | 01/03/2006 |
| 6976357 | Conduit loss compensation for a distributed electrohydraulic system A plurality of hydraulic actuators are connected by valve assemblies to fluid supply and return conduits. Desired operating velocities are specified for the hydraulic actuators and used to define the amounts of fluid flow required by each actuator to move at the res... | 12/20/2005 |
| 6976358 | Circuit for controlling discharge amount of hydraulic pump A circuit for controlling a discharge amount of a hydraulic pump to an actuator irrespective of a load pressure of the actuator even when an engine operates at a low speed has a variable displacement hydraulic pump connected with the engine; an actuator connected wi... | 12/20/2005 |
| 6973779 | Hydraulic power system for agricultural implement including flow-rate indicator An agricultural-implement hydraulic circuit includes a pump supplying pressurized fluid to a first service line and a second service line via a feed line and a device for varying the flow rate of the pump. A distributor valve is disposed between the first service li... | 12/13/2005 |
| 6966180 | Control arrangement and method for a hydraulic system A control arrangement for a hydraulic system is disclosed. The system comprises a variable displacement hydraulic pump (4), which is connected with a hydraulic drive motor (16) by a supply line (11) and a return line (12). The system also... | 11/22/2005 |
| 6957721 | Hydraulic elevator with an accumulator A pump is situated between the hydraulic drive and the accumulator, this pump being driven by a motor and conveying hydraulic oil from the hydraulic drive to the accumulator and vice versa without the presence of control valves which influence the flow of hydraulic ... | 10/25/2005 |
| 6958587 | Torque distribution for multiple propulsion system vehicles A vehicle has multiple electrical propulsion systems. Torque is split among the various propulsion systems to meet a variety of requirements and limitations including operator demand, vehicular traction limits, electric machine torque capabilities, machine efficienc... | 10/25/2005 |
