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WO/2014/197897A1 |
A vented pressurized gas-powered actuator (10) includes a housing (12) having a central longitudinal axis (L1) and an inner surface (12w). At least one vent groove ( 12v) extends from the inner surface (12w) in a direction away from the ...
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WO/2014/183835A1 |
The invention relates to a drive unit (10) of a fluid-actuated linear drive (1) which is composed of a piston rod (12), a drive piston (15) sitting on the piston rod (12) and a buffer sleeve (24) likewise sitting on the drive piston (15)...
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WO/2014/186437A1 |
A rotary-to-linear motion actuator having helical bevel gear and methods of use thereof are described. The actuator may be utilized with an apparatus for managing a fluid flow passage between one or more input ports and output ports. A p...
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WO/2014/184976A1 |
A fluid pressure cylinder (10) includes first through fourth stepped portions (28a, 30a, 32a, 34a) provided in a multi-stepped manner on a first spigot joint (26) of a head cover (14), and first through fourth stepped portions (28b, 30b,...
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WO/2014/182783A1 |
A multi-cylinder assembly includes a cylinder assembly defining a bore and a piston-rod assembly slidably disposed in the bore of the cylinder assembly. The piston- rod assembly includes a piston rod, a piston-rod sleeve and a retainer. ...
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WO/2014/181489A1 |
In a fluid pressure cylinder (10), a first positioning ring (26) is provided detachably on a first annular projection (34) of a head cover (14), and a second positioning ring (28) is provided detachably on a second annular projection (48...
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WO/2014/181363A1 |
Partial turn actuator comprising an output shaft (1), a first element (5) with a degree of freedom to translation, said element (5) being moved by a driving power, at least a second axially constrained element (2, 10, 11, 15), at least o...
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WO/2014/182345A1 |
Disclosed embodiments include hydraulic cylinder assemblies (200; 300) and piston assemblies (205) for use in hydraulic cylinder assemblies. A rod (210; 310) is attached to a piston (200; 300). The rod has first portion, a second portion...
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WO/2014/177774A1 |
The present invention concerns a system 5 for securely blocking relative translational movement between a cylindrical shaft and an element 112, comprising a blocking means 50 in which an immobilisation element 55 is arranged, the immobil...
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WO/2014/179423A1 |
Methods and apparatus for changing actuator output torques are disclosed. An example method includes decoupling a first end cap (204) from a body (206) of an actuator. A first spring assembly (402) is positioned within a first outer cham...
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WO/2014/174262A1 |
A failsafe mechanism for a tool is described, such as a lifting or separating wedge, and optionally having a piston. An actuator rod (10) activates and deactivates the tool in response to a control mechanism, and has a deformation region...
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WO/2014/167731A1 |
This stroke initial calibration operation support device is provided with: a stroke sensor (10) which is arranged on a hydraulic cylinder and measures the stroke length of said hydraulic cylinder; a rotary encoder (20) and magnetic senso...
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WO/2014/167732A1 |
This stroke movement calibration control device is provided with: a stroke sensor (10) which is arranged on a hydraulic cylinder and measures the stroke length of said hydraulic cylinder; a rotary encoder (20) and magnetic sensor (20a) w...
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WO/2014/167722A1 |
This stroke movement diagnosis support device is provided with: a stroke sensor (10) which is arranged on a hydraulic cylinder and measures the stroke length of said hydraulic cylinder; a rotary encoder (20) and magnetic sensor (20a) whi...
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WO/2014/167728A1 |
This stroke movement diagnosis support device is provided with: a stroke sensor (10) which is arranged on a hydraulic cylinder and measures the stroke length of said hydraulic cylinder; a rotary encoder (20) and magnetic sensor (20a) whi...
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WO/2014/169194A1 |
An actuator is provided. The actuator includes a rod having a socket portion at one distal end of the rod and a swivel cap. The swivel cap includes a base portion having an inner surface and an outer surface and a raised domed portion di...
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WO/2014/161563A1 |
The invention relates to an electrically actuated rotary drive device (1), which has a gearing housing (4), to a rear side of which an electric drive motor (2) is fastened and on which an output part (12) having a drive connection to the...
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WO/2014/161769A1 |
The invention relates to a steering engine, in particular for an underwater vehicle, having a hydraulic circuit (1), in which a pump (4) is arranged, wherein the pump (4) is a motor-operated reversible hydraulic pump (4), and the hydraul...
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WO/2014/161559A1 |
For a working cylinder, comprising a cylinder housing (12), in the cylinder interior (13) of which a drive piston (14) that can be linearly displaced by means of fluid application is accommodated, wherein the cylinder housing (12) is acc...
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WO/2014/163362A1 |
The purpose of the present invention is to provide an apparatus and a method for variably controlling spool displacement of a construction machine, which increases the regeneration efficiency of the construction machine by controlling a ...
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WO/2014/153587A1 |
The invention relates to a cylinder housing (2) for a pressure cylinder (1) of lightweight/hybrid construction, having a support structure (4) comprising an inner tube (6) with ends (7, 8) that are spaced apart in the axial direction, an...
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WO/2014/160527A1 |
A quick-disconnect connector assembly includes a housing having a bore that extends up to but not through a first end of the housing. The connector assembly also includes a proximity switch disposed within the bore, and the proximity swi...
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WO/2014/156881A1 |
The inside of a housing (3) is partitioned into a first pressure chamber (A) on the upper side and a second pressure chamber (B) on the lower side by a rubber diaphragm (6), and a disc-shaped plate (7) is attached to an upper surface (6C...
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WO/2014/157044A1 |
A pipe fixture for a fluid pressure cylinder which fixes, to a cylinder tube, a pipe for supplying and discharging a working fluid within the cylinder tube is equipped with a band which is provided with two half-band parts curved along t...
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WO/2014/157467A1 |
A joined body in which the end surfaces of two joining members are joined to each other by friction welding is provided with: a hollow section that is formed in at least one of the joining members and that opens onto the joining surface ...
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WO/2014/157043A1 |
A pipe fixture for a fluid pressure cylinder is equipped with a band which is provided with two half-band parts curved along the outer periphery of a cylinder tube and which sandwiches the cylinder tube by securing together both ends of ...
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WO/2014/150324A1 |
Pistons are disclosed herein. An example apparatus includes a piston defining a chamber and a circumferential groove in communication with the chamber. At least a portion of the chamber is to be substantially filled with a fluid. The exa...
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WO/2014/146946A1 |
The invention relates to a vacuum valve having at least one piston/cylinder arrangement (3) for adjusting a first closure member (1a) between a first, a second and a middle closure member position (C1, C2, C3) which lies in between. The ...
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WO/2014/149918A1 |
The present disclosure relates to a hydraulic actuator which may be used to move or actuate an element to be moved. The hydraulic actuator may comprise a cylinder barrel, a piston rod (40) reciprocally received by the cylinder barrel and...
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WO/2014/147894A1 |
The fluid pressure cylinder undergoes expansion and contraction according to the supply and discharge of fluid pressure into the cylinder tube. Inward from the two ends of the cylinder tube in the axial direction, at least one small diam...
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WO/2014/141231A1 |
Aspects of embodiments of the invention relate to a spring-return actuator comprising a first piston (125A,B) movable between a first and a second position by pressurized fluid to move a load; a safety system comprising a second piston (...
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WO/2014/137124A1 |
Disclosed is a hydraulic pressure booster cylinder integrated with a booster pump device. Instead of employing a hydraulic power unit to operate a conventional hydraulic cylinder, the hydraulic pressure booster cylinder integrated with a...
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WO/2014/133939A2 |
A rotary actuator includes a first housing defining a first arcuate chamber having a first cavity, a first fluid port in fluid communication with the first cavity, and an open end. A rotor assembly is rotatably journaled in the first hou...
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WO/2014/133884A1 |
A rotary actuator (2900) includes a housing defining an arcuate chamber including a cavity, a fluid port in fluid communication with the cavity, and an open end. A rotor assembly includes an output shaft (2912) and a rotor arm (2914) ext...
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WO/2014/132732A1 |
An actuator unit is provided with: a rod-side chamber and a piston-side chamber, which are separated by a piston; a tank; a first opening/closing valve which connects and disconnects the rod-side chamber and the piston-side chamber; a se...
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WO/2014/133871A1 |
A rotary actuator (2900) includes a housing, a rotor assembly rotatably journaled in said housing and including a rotary output shaft (2912), a central actuation assembly (2960) including a central mounting point formed in an external su...
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WO/2014/124624A1 |
The invention relates to a working cylinder for pressure medium flow transfer between the working chambers of a double-acting hydraulic working cylinder in the vicinity of the end positions of the piston. A working cylinder according to ...
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WO/2014/124525A1 |
A rod-pumping system is provided. In one embodiment, the system includes a downhole pump (24) positioned in a well (14) and coupled to a well string, such as a sucker- rod string (22). The system also includes a first hydraulic actuator ...
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WO/2014/125854A1 |
This actuator unit is equipped with: a rod-side chamber and a piston-side chamber delimited by a piston inside a cylinder; a tank; a direction-control valve which makes it possible to selectively supply a working fluid discharged from a ...
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WO/2014/125887A1 |
This actuator unit is equipped with: two chambers delimited by a piston inside a cylinder; a supply channel capable of supplying a working fluid discharged by a pump to the two chambers; a discharge channel capable of connecting the two ...
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WO/2014/124519A1 |
Described is a modular linear actuator for use in an aerospace application, comprising: a piston housing having a closed end and an open end; a piston rod slideable within an interior of the piston housing between an extended position an...
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WO/2014/126087A1 |
The present invention achieves 3-position operation in one cylinder without using a spring. A partition plate (19) and an intermediate check plate (18) having a spacing as appropriate are affixed in the axial direction of a cylinder (11)...
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WO/2014/122665A1 |
The present disclosure relates to a valve used to control the discharge pressure and/or the discharge rate of a variable displacement pump. The displacement of the variable displacement pump is controlled by a control piston. The valve i...
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WO/2014/123368A1 |
One embodiment of the present specification relates to a method for controlling an oil hydraulic pump for an excavator with respect to a change in an operation mode, and comprises: an operation unit generating an operation signal accordi...
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WO/2014/123429A1 |
An adjustable actuator assembly, having an actuator body with an internal passage and a piston (16) that locates into the internal passage, the piston (16) moving through a fixed stroke length within the block, a rod (17) axially nested ...
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WO/2014/123714A1 |
In one embodiment, a hydraulic blocking rotary actuator including a stator housing having a through bore to position a rotor assembly. A rotor assembly includes an output shaft and at least a first rotary piston assembly disposed radiall...
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WO/2014/117249A1 |
A locking mechanism for locking an actuator piston within an actuator cylinder housing is disclosed. The locking mechanism comprises a locking pin that is moveable between extended and retracted positions. The locking pin can be moved us...
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WO/2014/115405A1 |
A pipe fastener for a hydraulic cylinder that: fixes a pipe supplying and discharging hydraulic fluid inside a cylinder tube to the cylinder tube; has a curved section along the outer circumference of the cylinder tube; and comprises two...
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WO/2014/115628A1 |
A drive chamber (11) to and from which a pressurized fluid is supplied and discharged is arranged on the upper side of a piston (10) inserted in an ascendable/descendable manner inside a housing (1). A detection valve (32) for ascent det...
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WO/2014/113781A1 |
A pneumatic artificial muscle (PAM) actuator body can be formed from an elastic material that includes an inflatable chamber and a restraining component, such as flexible, but inextensible fibers, that causes the actuator to contract whe...
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