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WO/2021/077171A1 |
A protection system for a hydraulic cylinder piston having a barrel and a piston rod reciprocating therein, the protection system comprising a piston rod shield which is fixed with respect to the piston rod in use to move with respect to...
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WO/2021/072138A1 |
An actuator includes a housing defining an inlet port, a piston and a return spring disposed within the housing, and an elastically deformable element. The return spring is configured to apply a biasing force to the piston to move the pi...
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WO/2021/065453A1 |
The robot device of the present disclosure includes at least one artificial muscle that operates by receiving a liquid supply and a liquid supply device that supplies and discharges the liquid to the artificial muscle, wherein the liquid...
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WO/2021/063808A1 |
The present invention relates to an apparatus for actuating a valve for a high-pressure system, in particular for a system for producing polyethylene, said apparatus including a pneumatic drive unit (10) and a threaded drive (11) which h...
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WO/2021/060603A1 |
The objective of the present invention is to provide a hydraulic cylinder rod having a rod eye firmly coupled to a hybrid round bar in order to reduce weight. To this end, the present invention is characterized in that a hydraulic cylind...
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WO/2021/058673A1 |
The invention relates to a fluid-driven drive (1) with a moving effective surface (K) and at least one variable volume cavity (Z), the drive further comprising a first magnetic element (M1) and a second magnetic element (M2), wherein the...
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WO/2021/060604A1 |
The purpose of the present invention is to provide a method of manufacturing a hydraulic cylinder rod, the method comprising a step for deriving an optimum ratio between a metal tube and a composite round bar when providing a hybrid roun...
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WO/2021/059109A1 |
The present invention relates to an actuation unit (10) of the articulated lever or cam type comprising an actuating arm (13) pivotable between an open position and an operative closed position; a pneumatic cylinder (20) comprising a ste...
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WO/2021/053959A1 |
In a cushion mechanism of a gas cylinder (10A-10C), when the pressure of a gas in a first pressure chamber is less than or equal to a prescribed pressure, a valve body (84) cuts off communication between the upstream side and downstream ...
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WO/2021/055804A1 |
In one aspect, system to form a pneumatically-actuated transistor logic includes a first deformable conduit; a first extensible bladder disposed at a first location along the first conduit; a first structure in proximity with the first b...
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WO/2021/047980A1 |
Retraction of a landing gear assembly (4) on an aircraft (1) is actuated by a hydraulic actuator (12). The actuator (12) includes a piston (28) that travels within a cylinder (26) along a stroke length between a first position correspond...
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WO/2021/047162A1 |
A hydraulic lock control structure for a rotating blade oil passage, relating to the technical field of blade adjustment of a water turbine, and comprising a hydraulic lock main body (1); the interior of the hydraulic lock main body (1) ...
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WO/2021/050993A1 |
Disclosed herein are components, systems, and methods to monitor acoustic emissions of a high pressure system to predict failure of the high pressure system. Further disclosed herein are components, systems, and methods to monitor acoust...
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WO/2021/049244A1 |
A supporting rod (3) is inserted into a housing (1) in a vertically movable manner. An actuating chamber (21) is formed in a lower end part of the housing (1). An output member (24) is moved upward by a hydraulic oil supplied to the actu...
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WO/2021/044780A1 |
The present invention pertains to an air cylinder (10) in which flow rate controllers (24, 24A) are built into a head cover (14) and a rod cover (16), said flow rate controllers (24, 24A) being provided with a first flow rate adjustment ...
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WO/2021/045663A1 |
Hydraulic cylinder (1) comprising at least one cylinder housing (2), with a cylindrical inner space, and in this at least one movably arranged first piston (3) which divides the hydraulic cylinder into at least one first chamber (9) and ...
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WO/2021/040515A1 |
The present invention relates to a method for selectively coupling or uncoupling a coupling with a release, arranged between the supply conduit and a cylinder, on the basis of pressure in a supply conduit, comprising the steps of: - prov...
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WO/2021/039293A1 |
In the present invention, a discharge path (42) includes: an annular space (2a) that is formed in between a support rod (3) and an insertion hole (2) formed in a distal end of a housing (1); and a discharge outlet (42a) formed in the dis...
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WO/2021/041775A1 |
Embodiments of the invention provide a ram assembly for a hydraulic tool. The ram assembly includes a ram piston having a ram cavity. The ram piston receives a hydraulic pressure reaction force. The ram assembly further includes an overl...
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WO/2021/028528A1 |
The invention relates to a piston rod unit (1) for a hydraulic cylinder (2), comprising at least one piston-side end part (3), at least one rod-eye-side end part (4), and a hollow piston rod (5) arranged between the end parts (3, 4), whe...
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WO/2021/030742A1 |
The present disclosure relates to a pumping system including a conduit with an inlet region and an outlet region and a first pump coupled with the conduit between the inlet region and the outlet region. The first pump includes a first ac...
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WO/2021/013295A1 |
The invention relates to a pneumatic or hydraulic piston rod cylinder (I) having a cylinder (2) and a piston (3) adjustable therein in the longitudinal directionr, which piston is coupled to a piston rod (4) protruding out of the cylinde...
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WO/2021/013296A1 |
The invention relates to a pneumatic or hydraulic piston rod cylinder (1) comprising a cylinder (2) and at least one first piston (3.1) which can be adjusted therein in the longitudinal direction thereof, and which is coupled to a piston...
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WO/2021/008585A1 |
A gas spring with external driving force, mainly comprising a cylinder body (1), a piston (2), a piston rod (3), a stop valve (4), and a power cylinder or tank (5), wherein the piston (2) is mounted in the cylinder body (1); one end of t...
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WO/2021/007157A1 |
A dieless crimp head is provided that includes a frame, an indentor, and a first positioning device. The frame has a first frame shell and a second frame shell, which define a frame opening. The indentor converges on a crimp center withi...
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WO/2021/005321A1 |
The present disclosure provides a linear actuator assembly (100) comprising a plurality of hydraulic cylinders (110); a manifold block(120) in fluid communication with at least one of said plurality of hydraulic cylinders (110); a contro...
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WO/2021/005180A1 |
The invention relates to a hydraulic stop for the limit braking of a main piston (5) mounted on a movable rod (5), the hydraulic stop being characterised in that it comprises: - a body, referred to as the stop body (13), - an expansion p...
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WO/2021/005424A1 |
A pneumatic linear slide actuator is described, more commonly identified as pneumatic slide, comprising a body, inside which there is at least one cylindrical chamber, and a piston movable in the corresponding cylindrical chamber in resp...
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WO/2021/002152A1 |
Provided are a fluid pressure cylinder (100) and a sensor attachment tool (10) mounted thereon, wherein a holder (14) that holds the position sensor (18) in a rail structure extending in an axial direction of a cylinder tube (102) is sec...
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WO/2020/260129A1 |
The invention relates to a hydraulic control block for controlling the supply of a pressure medium to an actuator of a hydraulic or servo-hydraulic axle, comprising a main part through which pressure medium channels pass and comprising a...
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WO/2020/260146A1 |
Disclosed is a hydraulic control block for controlling a pressure medium supply of a hydro-cylinder of an electro- or servo-hydraulic axle, having interior hydraulic interfaces via which piston surfaces of the hydro-cylinder can be fluid...
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WO/2020/260128A1 |
The invention relates to a hydraulic control block for a servo-hydraulic axle, in particular a linear axle, at least comprising hydraulic interfaces for hydraulically connecting a hydraulic actuator of the axle and comprising a first cav...
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WO/2020/256564A1 |
Cylinder (1A, 1B, 1C) comprising a piston part (300), a cylinder part (200) and a pipe section (400) which is connected to the piston part (300) or the cylinder part (200). A portion of the pipe section (400) encloses a pressure compartm...
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WO/2020/249983A1 |
This invention concerns a contractile device. The device includes a body, which has a wall including a tessellation of elements. The body is deformable through pressurisation of fluid within the body between a first, extended state and a...
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WO/2020/249265A2 |
The present invention relates to a pipe coupling applicator with a control device and a method for producing a coupling between a first pipe element and a second pipe element. In this context, the pipe coupling applicator with a control ...
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WO/2020/250122A1 |
The fluid-operated device (1) comprises: one work assembly (53) supplied by one work fluid and provided with: - one liner (3); - one stem (2) coupled in a sliding manner inside the liner (3) and defining with the latter a thrust chamber ...
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WO/2020/237455A1 |
An air-liquid pressure conversion control device. The device uses a combination of a large-diameter air cylinder and a small-diameter hydraulic cylinder, and drives a piston of the hydraulic cylinder to reciprocate by utilizing the push-...
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WO/2020/220165A1 |
A mutual feedback automatic control device for a dual fluid load, a driving method therefor, and a foot type mobile machine. The mutual feedback automatic control device for a dual fluid load makes two fluid loads timely mutually feed ba...
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WO/2020/223373A1 |
The subject matter of this specification can be embodied in, among other things, an assembly that includes a piston having a piston inner surface defining a cylindrical cavity and includes a first axial portion, a piston face at a first ...
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WO/2020/223388A1 |
The subject matter of this specification can be embodied in, among other things, a linear-to-rotary apparatus that includes a linear actuator having an actuator housing including a piston chamber, a piston shaft disposed in the piston ch...
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WO/2020/222705A1 |
A variable stiffness device for soft robotics actuation comprises a plurality of pressurizable members and a holder for retaining the plurality of pressurizable members, the plurality of pressurizable members being arranged so that at le...
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WO/2020/214489A1 |
A robotic orthosis device (10) for assisting a user to rotate their wrist is disclosed. The robotic orthosis device includes a pair of fabric-based helical actuators (26, 28) and a sleeve (12) or rigid interfaces (90, 92) configured to a...
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WO/2020/213583A1 |
A hydraulic actuator (10) is provided with an actuator main body (100) that changes in shape due to the expansion or contraction of a cylindrical tube that expands and contracts in response to hydraulic pressure, and a detection unit (50...
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WO/2020/211937A1 |
The invention relates to a stroke transmitter (2) for an actuator device (1). The stroke transmitter (2) comprises a first and a second conversion unit, which are mechanically connected to one another in series, wherein the first convers...
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WO/2020/210886A2 |
A new structural arrangement is disclosed for a soft robotic claw with compression chambers that provides a fully yielding body that is able to grip, release and hold objects of different shapes and sizes. Said robotic claw has one or mo...
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WO/2020/208413A1 |
A linear actuator system has a rotary spool valve configuration having a spool, a piston, and a cylinder. The spool and piston have return apertures so positioned, configured and angled to direct return flow towards the center of a spool...
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WO/2020/199275A1 |
A hydraulic cylinder device with a water-cooling structure, comprising a hydraulic cylinder (1), an asbestos column (2), a water inlet pipe (3), a water outlet pipe (4) and a flange plate (5). The asbestos column (2) is fixedly arranged ...
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WO/2020/203319A1 |
Provided is an electrolyzer which houses a stack obtained by stacking a plurality of electrolytic cells, wherein by automatically adjusting the position of the locking mechanism of a safety device, the pressing force applied to the stack...
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WO/2020/183293A1 |
A shaft-cylinder assembly for high-temperature operation comprises a pair of first and second dynamic sealing members (203a, 203b) having a helical coiled seal ring structure configured to be in contact with the shaft (202) for providing...
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WO/2020/183292A1 |
A high-pressure piston-cylinder assembly (1) for compaction treatment comprises: a cylinder (11) comprising a plurality of sections which are longitudinally stacked and joined to form the cylinder (11), a piston (12) configured for movin...
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