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WO/2021/189089A1 |
An actuator has a housing (14), a pyrotechnic charge (17) and a piston (11) which transitions into a pin (12) which in the initial state projects out of the housing (14) and upon ignition of the pyrotechnic charge (17) is retracted at le...
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WO/2021/195232A1 |
A piston assembly for use in a gas spring or damper can include a piston rod partially positioned within a pressure tube, and a linear position sensing apparatus capable of tracking and determining the velocity of the piston rod. The lin...
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WO/2021/188221A1 |
An electrostatic zipping actuator (132, 232) includes a primary electrode (120, 220), a secondary electrode (130, 230) overlying the primary electrode, a dielectric layer (120; 220, 270) located between and abutting at least a portion of...
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WO/2021/184848A1 |
Disclosed are a hydraulic operating mechanism and a control valve thereof. The control valve of the hydraulic operating mechanism comprises a high-pressure oil port, working oil ports and a low-pressure oil port, and the control valve fu...
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WO/2021/182184A1 |
A cylinder (100) comprises: a cylinder bottom (120) that has an annular wall section (122) extending from a base section (121) and closes an opening of a cylinder tube (110); a back ring (140) that is provided so as to face the inner cir...
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WO/2021/183823A1 |
Described herein are devices, systems, and methods relating to making individuals comfortable when in contact with surfaces (e.g., seats and beds) including preventing pressure injuries on subjects. In embodiments, disclosed herein are p...
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WO/2021/183924A1 |
A device that performs wireless actuation by inductive heating. The device includes a bladder configured to expand or retract, so as to change the bladder's interior area. The device also includes a container, fluidly coupled to the blad...
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WO/2021/176343A1 |
The present invention relates to a pneumatic telescopic column assembly (1) for supporting and moving military equipment, communication equipment, lighting equipment and/or surveillance equipment, which extends along an axis (V-V) and co...
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WO/2021/178627A1 |
Various examples are provided related to pneumatic soft robotic spiral grippers. A fiber optic sensor can enable spiral-gripper sensing of, e.g., a twining angle and target cylinder diameter. In one example, a pneumatic soft robotic spir...
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WO/2021/170905A1 |
The invention relates an arrangement for tilting or turning a tool, the arrangement including at least one actuator (6) for tilting and turning the tool, the actuator (6) comprising at least a frame part (7) adapted to be closed by a cov...
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WO/2021/171509A1 |
A hydraulic cylinder 40 according to the present invention is provided with a cylindrical cylinder tube 80 and a piston 100 that is contained inside the cylinder tube. The cylinder tube 80 is provided with: a cylindrical proximal section...
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WO/2021/169175A1 |
An oilway structure for achieving precise control of a double-acting cylinder, comprising a double-acting cylinder (1), an oil inlet pipeline (2), an oil outlet pipeline (3), a first accumulator (71), and a second accumulator (72). One e...
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WO/2021/167780A1 |
Cylinder sensor assembly (126) includes a sensor (128) with pressure pipe (132) extending from the first sensor axial face (134) of a sensor body (130), an annular face seal (184) adapted to be disposed between the first sensor axial fac...
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WO/2021/166639A1 |
A hydraulic cylinder (100) provided with: a cylinder tube (10); an outer-side rod (31) inserted in the cylinder tube (10); a first inner-side rod part (41) and a second inner-side rod part (51); and an outer-side piston part (32) that is...
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WO/2021/165150A1 |
The hydraulic servo actuator contains a piston rod (3) and two pistons (K1, K2) which are arranged in tandem thereon and each of which is movably mounted in a separate hydraulic cylinder (Z1, Z2). Two separate redundant hydraulic circuit...
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WO/2021/163812A1 |
A thermal actuator includes a piston slidingly within a cylinder. The piston cooperates with the cylinder to define a cavity. The piston also includes a rod extending away from the cavity. A magnetic field generator selectively imparts a...
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WO/2021/165028A1 |
A clamping device for releasably holding a tool holder shank (91), comprising: - a housing (2); - a drawbar (5) axially moveable in a bore (3) in the housing; - engagement members (20) moveable under the effect of the drawbar into lockin...
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WO/2021/163237A1 |
A metering valve for introducing media into a pressurized fluid including media passaging extending through a housing. A plunger is movable between a closed position in which the plunger prevents flow of media in the media passaging and ...
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WO/2021/160289A1 |
The invention relates to an actuator device (10) comprising at least one output element (12), which can be applied with a fluid and can thereby be moved into at least one retaining position. An actuator (34) is provided which can be oper...
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WO/2021/156240A1 |
The invention relates to an expandable tubular element (3, 37) for a fluid-inflatable cylinder, comprising a peripheral wall (7) that is fluid-tight and formed by a plurality of panels (9) connected in pairs by substantially rectilinear ...
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WO/2021/158125A1 |
Disclosed is a device including an exhaust valve, that operates on a pressurised working fluid. The device includes a working chamber, defined at least in part by a side wall, which working chamber can hold a workload to or toward a firs...
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WO/2021/148486A1 |
The invention relates to an actuator comprising a body (2) and at least a first offset connection port (4.1) which is connected to the body (2) by a first pipe (5.1) projecting from the body (2). The first connection port (4.1) is mechan...
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WO/2021/132152A1 |
The present invention suppresses the strain of a pipe fastening section (87), which is a fastening portion between a hydraulic pipe (62) connected to a hydraulic cylinder (7C), and a cylinder port (66) side of a mounting valve (64). A va...
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WO/2021/129900A1 |
The invention relates to a working cylinder with a cushioned end-stroke. The piston unit has a piston main part and a ring body. The exterior of the ring body receives a piston ring with a piston ring gap, and the ring opening of the rin...
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WO/2021/129973A1 |
The invention relates to a rotary drive (100) for pivoting two boom arms (10, 10') which are connected together in an articulated manner, in particular two boom arms of a concrete distribution boom (12) of a mobile or stationary concrete...
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WO/2021/121285A1 |
A static pressure vibration system, comprising: a hydraulic cylinder (40), wherein a static pressure cavity (570) and a dynamic load cavity (580) are formed in the hydraulic cylinder (40), the static pressure cavity (570) is provided wit...
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WO/2021/118607A1 |
A hydraulic power unit ("HPU") with a submerged motor for moving hydraulic fluid between a first chamber and a second chamber of a hydraulic device is provided. The HPU may comprise a tank for storing hydraulic fluid, wherein the tank ho...
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WO/2021/113556A1 |
A pneumatic cylinder with a piston rod movable to fully extended, intermediate and fully retracted positions. The cylinder may have a first head engaging one end of a first tube with a first piston slidably received therein, an intermedi...
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WO/2021/112728A1 |
The present invention regards an electro-hydraulic linear actuator (1) and a method of controlling the operation of the electro-hydraulic linear actuator (1). The electro-hydraulic linear actuator (1) comprises one single cylinder housin...
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WO/2021/112750A1 |
The present invention regards an electro-hydraulic linear actuator (1) and a method of controlling the operation of the electro-hydraulic linear actuator (1). The electro-hydraulic linear actuator (1) comprises one single cylinder housin...
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WO/2021/111089A1 |
The invention concerns a telescopic connecting rod (30) for a variable compression ratio engine, comprising: - a small end (30a) having respectively an eye and a piston (34) at its ends; - a big end (30b) serving as cylinder body in whic...
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WO/2021/111467A1 |
Methods and systems relating to improvements in reliability of fluid power actuators are disclosed. An exemplary fluid power actuator (300) comprises, an actuator body (305) having a cylindrical cavity (310), fitted with a first end cap ...
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WO/2021/111088A1 |
The invention relates to a hydraulic control system (3) for a variable compression ratio engine, comprising: - a control cylinder (30) comprising a piston (30a), a body (30b) in which two hydraulic chambers (31, 32) with equivalent secti...
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WO/2021/104090A1 |
Disclosed is a pneumatic muscle, belonging to the technical field of bionic actuators, comprising a balloon (1), wherein a braided mesh tube (2) is provided on an outer side of the balloon (1); the balloon (1) is connected to one end of ...
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WO/2021/108433A1 |
Embodiments of the invention provide an actuator (100) for a valve assembly. The actuator can include a yoke (146) with at least one bore (196), a first rod assembly (136), and a first slide member (148) seated within the at least one bo...
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WO/2021/099025A1 |
The invention relates to an electrohydraulic actuator for use under water, having: an electrically driven pump; at least one hydraulic cylinder that comprises at least one or two cylinder chambers and a slidable piston which delimits the...
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WO/2021/096845A1 |
Various implementations include an actuator. The actuator includes a housing and a piston. The housing has a central axis and an inner surface. The housing defines at least one protrusion that extends radially inwardly from the inner sur...
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WO/2021/089072A1 |
The invention relates to a working cylinder comprising a cylinder tube, a first closure part, a second closure part, and a piston unit, wherein the cylinder tube has a first cylinder tube end and a second cylinder tube end, the first clo...
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WO/2021/089071A1 |
The invention relates to a working cylinder comprising a cylinder tube, a first closure part, a second closure part, and a piston unit, wherein the cylinder tube has a first cylinder tube end and a second cylinder tube end, the first clo...
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WO/2021/089069A1 |
The invention relates to a working cylinder (1) having a cylinder tube (2), a first closure part (3), a second closure part (4) and a piston unit (5), wherein the cylinder tube (2) has a first cylinder tube end (6) and a second cylinder ...
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WO/2021/090076A1 |
This disclosure relates to a hydraulic system for a hydro-mechanical machine comprising a rotary mechanism 102 and a boom cylinder 158. The hydraulic system includes a primary accumulator 114 configured to receive and store high-pressure...
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WO/2021/089070A1 |
The invention relates to a piston unit of a working cylinder having a piston (1) and a piston rod (2), wherein: the piston has an axial bore hole (3) in which the piston rod (2) is received; the piston rod (2) and the piston (3) are inte...
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WO/2021/089594A1 |
The invention relates to exoskeletons and artificial muscles for soft exoskeletons (1). The muscle (21, 22, 23, 24) comprises a first (211, 221, 231, 241) and second (212, 222, 232, 242) tendon, each comprising an attachment means (227) ...
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WO/2021/092001A1 |
Aspects of the disclosure relate to a hydraulic amplifier (100). The hydraulic amplifier may include a piston body (110) having a movable piston (210) that divides an interior of the piston body into a first chamber (222) and a second ch...
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WO/2021/083724A1 |
The present invention relates to an electrohydraulic system (100) for a valve, which system is configured to rotatingly drive a valve, the system (100) comprising the following: an output shaft (10), which can be directly connected to th...
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WO/2021/084815A1 |
A first MR sensor (28) and a second MR sensor (30) are a combination of a first magnetic resistance effect element pattern and a second magnetic resistance effect element pattern, and the first MR sensor and the second MR sensor are disp...
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WO/2021/078727A1 |
The invention relates to a hydrostatic cylinder with a gas pressure accumulator, which is preferably designed as a piston accumulator, and which is arranged concentrically on the outer circumference of the cylinder. According to the inve...
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WO/2021/078754A1 |
The invention relates to a method for operating a pressure wave generator (1) with a pressure chamber (2), said pressure wave generator (1) comprising • a closure element (9) which in a closed position closes the pressure chamber (2) r...
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WO/2021/081255A1 |
Methods and apparatuses for indicating the presence of a threshold directional differential pressure between separated adjacent spaces. An inclined conduit contains at least one movable element that indicates whether the pressure differe...
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WO/2021/078183A1 |
The present invention provides a micro electro-hydraulic linear actuator and an electro-hydraulic actuated robot dexterous hand. The micro electro-hydraulic linear actuator comprises an actuator base (3), a spherical pump unit, and a rec...
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