Match Document Document Title
US20130008303 AIR MOTOR  
An air motor (10) that receives compressed air in order to be driven. The air motor (10) includes a valve assembly (11) with a base (12) of a unitary construction. The base (12) has opposite side...
US20150252554 HYDRAULIC DRIVE SYSTEM FOR CONSTRUCTION MACHINE  
During boom-midair lowering operation in which a front work implement 130 can be turned under the self-weight of a boom 131, a hydraulic pump/motor 7 is operated as a motor to operate a...
US20120308420 AIR MOTOR HAVING CERAMIC VALVES  
An air motor includes ceramic valves and valve plates to enhance performance and efficiency of the air motor.
US20140196601 Uniflow Steam Engine  
Improvements to the steam engine for the purpose of small scale generation of electricity using biomass fuels and for co-generation of heat and electricity using biomass fuels in both developed...
US20140123847 HYDRAULIC EXCAVATOR  
In a hydraulic excavator, a hydraulic cylinder drives a boom via a hydraulic fluid discharged from a first hydraulic pump. A first hydraulic circuit connects the first hydraulic pump and the...
US20140305235 VIBRATION EXCITER FOR CONSTRUCTION MACHINES  
A pivot motor, particularly for a vibration exciter for construction machines, has a pivot motor housing that is mounted so as to rotate on a pivot motor shaft. At least two pressure chambers to...
US20140083287 HYDRAULIC MOTOR CAPABLE OF MANY DIFFERENT APPLICATIONS ABLE TO USE LOW-PRESSURE OR HIGH-PRESSURE FLUIDS TO OPERATE  
A hydraulic motor able to use low-pressure or high-pressure fluids such as water for a large number of applications. The motor uses a flow of water that is controlled and directed through a system...
US20130298755 MOTOR ASSEMBLY FOR PNEUMATIC TOOL  
A motor assembly for a pneumatic tool includes: a motor cylinder coaxially secured in a tubular inner housing, which is coaxially secured in a tubular outer housing and has an inlet passage...
US20110235332 ORNAMENTAL MODULE AND ORNAMENT DEVICE THEREOF  
The present invention discloses an ornament module with a column structure, which comprises a ornament unit provided on the top of the column structure, a mechanical movement unit connecting to...
US20140205414 POWER SHOVEL HAVING ISOLATED HYDRAULIC DIPPER ACTUATOR  
A hydraulic system for a power shovel is disclosed. The hydraulic system may have a cylinder operatively connectable to a dipper door of the power shovel, a reservoir located at and fluidly...
US20130105236 CAB TILT WITH MULTIFUNCTION FLAG PIN AND LOCKING CYLINDER  
An operator cab for a work vehicle is releaseably mounted to a frame of the vehicle via a cab support pin and a flexible mount during vehicle work operations and rotationally attached via the cab...
US20140000447 PNEUMATIC MOTOR  
A pneumatic motor includes a cylinder and a rotor disposed in the cylinder. The rotor includes an axle, and main and secondary blades are slidably received in a plurality of main and secondary...
US20120255433 PUMP ASSEMBLY  
A pump assembly includes a pump housing provided with a bore within which a pumping plunger is reciprocal along a plunger axis; a pump chamber defined at one end of the bore within which fuel is...
US20110088545 Hydraulic Actuator Unit  
In the hydraulic actuator unit according to the present invention, a first electric motor assembly formed by mounting one of a pair of electric motors to one of a pair of electric motor covers is...
US20140224115 DEVICE TO ACTUATE A FLUIDCONNECTOR CONTAMINATION COVER  
A device to actuate a contamination cover on a machine bracket is disclosed. The device may include a first transition cylinder mounted on the machine bracket and connected to the contamination...
US20140060316 Vibration Energy Harvest Device  
The present invention relates to a vibration energy harvest device. In the present invention, the vibration energy harvest device is provided for being used to recycle the mechanical energy and...
US20140102289 SHOVEL AND METHOD FOR CONTROLLING SHOVEL  
A shovel according to an embodiment of the present invention is a shovel including a boom cylinder and an arm cylinder. The shovel includes a hydraulic motor driven by hydraulic oil flowing out of...
US20110226973 LIFT ASSIST AND DAMPER ARRANGEMENT  
A lockable lift assist assembly includes a piston assembly moveable between an extended position and a retracted position. A valve assembly is coupled in movement together with the piston...
US20130343939 Two-Step Hydraulic Valve  
A two-step hydraulic valve is described. In an implementation, a two-step hydraulic valve with retrograde spool action has a pilot spool that controls hydraulic force applied to a main spool to...
US20140083104 STROKE TRANSMITTER FOR GAS TURBINE  
A stroke transmitter is presented. The stroke transmitter includes a conduit for providing a passage to a fluid, an actuating unit for increasing pressure in an hydraulic fluid, a valve unit...
US20110030547 FLUID DRIVEN RECIPROCATING LINEAR MOTOR  
A reciprocating linear motor powered by one directional fluid flow is provided, having small external diameter, optimized for length, with few moving parts and effective seals, low mass and thus...
US20130055888 VALVE PLATE AND AXIAL PISTON HYDRAULIC PUMP MOTOR INCLUDING THE SAME  
A valve plate is used in a swash plate type motor including a motor shaft and a cylinder block in a motor housing and includes: a sliding supporting surface contacting a rear end surface of the...
US20140000448 HYDRAULIC-PNEUMATIC ACTUATOR  
An actuator for relatively moving two parts in a damped manner. The actuator includes a damper housing for connection to a first of the parts. The damper housing includes a damper chamber. The...
US20120024145 HYDRAULIC MOTOR DRIVING DEVICE  
A motor capacity change-over actuator 10 varies a capacity of a hydraulic motor 1 in accordance with the inflow/outflow of a working fluid into/out of a drive pressure chamber 72. A motor capacity...
US20140311333 CENTRAL VALVE FOR PIVOT MOTOR ACTUATOR  
A central valve for a pivot motor actuator, the central valve including a housing tube including a first operating connection, a supply connection, a second operating connection and a tank drain...
US20110214563 FREE-PISTON COMPRESSED-GAS ENGINE VARIANT AND ENGINE PINION WITH SEVERAL DECOMPRESSION STAGES AND RETURN SPRINGS  
The present utility model is a free-piston engine comprising pinions, with various stages, providing excellent efficiency and control.
US20120312156 Fluidic Impulse Generator  
A device for vibrating tubing as it is inserted into a wellbore is disclosed. The device has a fluidic switch that has no moving parts. The fluidic switch is connected to a piston that oscillates...
US20120031263 HYDRAULIC MOTOR WITH RADIAL PISTONS AND CONTROL BY CYLINDER  
A hydraulic motor is provided having radial pistons, with a cylinder block, two main ducts, a fluid distributor, one distribution valve per cylinder, and a control system for controlling the...
US20120159960 TURBOMACHINE DRIVE ARRANGEMENT  
An example arrangement for driving a turbomachine includes an input shaft that is configured to rotate a rotor of the turbomachine through a hydraulic log and gear differential rotatable coupled...
US20080054239 Automatic-locking hydraulic jack  
Automatic-locking hydraulic jack of the type that includes a piston (1, 30) that slides into a cylinder (3-2, 32), in which the locking of the piston is achieved by elastic deformation of either...
US20150128795 ROTATING MECHANISM  
A rotating mechanism includes a holder assembly, a rotating assembly, and a valve assembly. The holder assembly includes a mounting block. The rotating assembly includes a shaft and a rotating...
US20120198994 APPARATUS FOR CONTROLLING THE ANGLE OF A SWASH PLATE OF A HYDRAULIC PUMP  
The present disclosure relates to an apparatus for controlling the angle of a swash plate of a hydraulic pump, and more particularly, to an apparatus for controlling the angle of a swash plate of...
US20070234898 AXIAL CAM AIR MOTOR  
A motor assembly including a body that includes a plurality of cylinders and a plurality of air channels and a conical shaped piston slidably coupled within each of said plurality of cylinders....
US20150176613 Hydraulic Axle  
A hydraulic axle includes a reversible hydraulic pump. The hydraulic axle has a multi-surface cylinder with two retraction surfaces and two deployment surfaces. A first deployment surface and a...
US20090032315 Systems for Powering Vehicles using Compressed Air and Vehicles Involving Such Systems  
Systems for powering vehicles using compressed air and vehicles involving such systems are provided. In this regard, a representative system includes: a power source configured to power an air...
US20120023926 HYDRAULIC BOOSTER VENTED INPUT ROD WITH POPPET  
A hydraulic brake booster system. The hydraulic brake booster system includes a primary piston axially moveable within a bore of a cylinder, a booster chamber located rearwardly of the primary...
US20060144220 Pneumatically actuated assembly apparatus and method of assembly  
An assembly apparatus is provided for assembling two members, such as, for example a hose and a hose clamp. The assembly apparatus includes a base having first and second independently extendible...
US20140311334 PISTON PUMP AND MOTOR  
A plunger pump or plunger motor includes a block accommodating a first cylindrical chamber and a plunger movable in this chamber and a drive shaft connected to this plunger, as well as a second...
US20120079778 RAPID DEPLOYMENT AND RETRACTION TELESCOPING MAST SYSTEM  
A rapid deployment and retraction telescoping mast system for controlling the height of a mast. A retraction mechanism including a resilient member, a retraction reel, a reel shaft, and a motor...
US20130298756 VACUUM LOCK  
A vacuum lock having a main body portion, a cylinder and a piston is described. The cylinder is disposed within the main body portion and has an opening. The cylinder has one or more sealing rings...
US20100288119 BRAKE SERVO  
A brake servo whose valve piston has a concentric sealing seat which projects axially beyond a second sealing seat, with the concentric sealing seat having at least one recess for throttling the...
US20130205986 ANNULAR VALVE  
An annular valve (1) has an annular valve member (4) and inner and outer annular valve seats (12, 14). Inner and outer sealing ridges (8, 10) are formed either on the annular valve member or on...
US20070199440 Hydraulic System For Utility Vehicles, In Particular Agricultural Tractors  
A hydraulic system for utility vehicles, in particular agricultural tractors, with a regulated hydraulic pump (1) is disclosed for prioritised pressure medium supply to internal and external...
US20090078110 Pneumatic drive system  
It is a question of a pneumatic drive system comprising at least one pneumatic drive (2) possessing a drive housing (4) and an output drive unit (6) able to be shifted in relation to it by the...
US20120097021 BOOTSTRAP ACCUMULATOR SYSTEM WITH TELESCOPING ACTUATOR CYLINDER  
A bootstrap accumulator system includes an actuator cylinder that drives an accumulator piston through a multiple of nested actuator sleeves, comprising a multistage actuator cylinder.
US20120260794 PASSIVE PISTON UNIT  
A piston unit is disclosed that utilises an elastic volume to store and release energy with each stroke by varying the hydraulic fluid volumes in and out of the hydraulic unit.
US20130068091 HYDRAULIC PUMP/MOTOR AND METHOD OF SUPPRESSING PULSATION OF HYDRAULIC PUMP/MOTOR  
A method of suppressing a pulsation of axial type hydraulic pump/motor includes performing a pressure accumulation operation in which each of ports of each of two pressure accumulation oil...
US20080275385 System for Collecting Breast Milk From a Human Breast  
A portable, hands-free and user friendly breast pump for facilitating breast-feeding, incorporates a dome-shaped housing having a servomotor mechanism; a hat-shaped flange having a chamber...
US20060272495 Hydraulic pump unit  
There is provided a hydraulic pump unit of variable displacement type disposed away from a pair of hydraulic motor units which are capable of being independently arranged, the pump unit...
US20130269332 ENERGY RECYCLING SYSTEM FOR A CONSTRUCTION APPARATUS  
An energy recycling system is disclosed. When a construction apparatus performs a combined operation of a boom down operation and an arm out operation, hydraulic energy returned in the boom down...