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Patent Searching and Data


Matches 501 - 550 out of 923

Document Document Title
JPH057561B2  
JPH0510303A
PURPOSE: To control the movement of a large piston, a powered pushing rod of a piston set and a magnetic permeable metal sheet, to obtain a reciprocating mechanism and an intensified pushing process, and to reduce noise by means of the m...  
JPH04258501A
PURPOSE: To obtain a large displacement output at a second piston in a piezoelectric actuator which transmits displacement of a laminated piezoelectric body from a first piston to the second piston. CONSTITUTION: A first to a fourth pist...  
JPH0435780Y2  
JPH04175501A
PURPOSE: To prevent upsizing and complicate construction of an actuator by dividing a volume chamber which is connected to a detached pressure chamber of the actuator into unit volume chambers by a shifting volume-variable means, and cha...  
JPH0419201Y2  
JPH0419210Y2  
JPH0418936Y2  
JPH04125302A
PURPOSE: To simplity a process and improve accuracy of an actuator by arranging an O ring under initial compression-load applied between the end face of a driving piston and the inside end face of the body so as to tightly seal a space b...  
JPH04125301A
PURPOSE: To prevent invasion of water from the outside on a slinding face and prevent rust on the sliding face so as to improve, reliability of accuracy of an actuator by providing a sealing means between the part which projects to the o...  
JPH0418324Y2  
JPH0418325Y2  
JPH0418326Y2  
JPH0418327Y2  
JPH049447Y2  
JPH0373432B2  
JPH0366998B2  
JPH0398304U  
JPH03223502A
PURPOSE: To obtain a cheap and accurate micro-positioning device by introducing working fluid pressurized with the piston of a cylinder part driven by a feed screw and a motor through a spring, into the fluid chamber of a cylindrical mem...  
JPH03504223A  
JPH0357324B2  
JPH0366592U  
JPH03149401A
PURPOSE: To carry out an ultra low speed movement of a cylinder by filling electrolytic solution in a gas producing chamber which is provided adjacently to an oil chamber while being capable of swelling up, immersing a positive and a neg...  
JPH03140104A
PURPOSE: To operate a release plunger with small force by connecting a tranmission means which has a designated transmission ratio and is useful for operating the release plunger to a piston rod in the frictional connecting state and in ...  
JPH03139464A
PURPOSE: To simplify a controller assembly and suppress the occurrence of noise by forming an outer region of a second sealing seat into a taper shape in the direction of a poppet valve member and extending it onto a passage and an air g...  
JPH03129102A
PURPOSE: To improve accuracy and reliability or an actuator by compensating a displacement error of an output plunger due to load through providing a circuit which senses displacement of the output plunger of the actuator, and also by de...  
JPH03121714A
PURPOSE: To produce large force in a simple structure by dividing a cylinder into high and low pressure spaces by a piston and taking second low pressure space as a balancing space to provide the sum of the discharge amount of a piston r...  
JPH0333922B2  
JPH0379801A
PURPOSE: To position a spool and so forth correctly without any effect by a secular change by installing a cylinder mechanism provided with a piston rod expandable according to the volume change in a container, the volume modification me...  
JPH0374602A
PURPOSE: To eliminate the deformation of a diaphragm and transfer the displacement of a driving piston to an output piston by providing the plate-shaped circular diaphragm liquid-tightly fitted to a body on the outer periphery and liquid...  
JPH0374603A
PURPOSE: To prevent the occurrence of a discharge between electrode layers and connecting members by forming a pair of electrode layers on both sides of piezoelectric elements, and applying the voltage so that polarities of electrode lay...  
JPH039719B2  
JPH038508B2  
JPH037134A
PURPOSE: To enable an accurate operation in remote place by feeding liquid to a liquid motional muscle means from a liquid pumping means under control of a control means, the liquid motional muscle means expanding in radial direction and...  
JPH03500034A  
JPH02293230A
PURPOSE: To easily obtain fluid which drives actuators by closing the exhaust valve of the one actuator at higher pressure in response to a difference between pneumatic pressures in the actuators, and opening the exhaust valve of the oth...  
JPH02264397A
PURPOSE: To make the complicated transmission of a signal exact and easy by laying down an insulating liquid pipe, to which insulating liquid is charged, between first and second points, between which the signal is transmitted, convertin...  
JPH0240242Y2  
JPH02227371A
PURPOSE: To make it possible to alter operating speed of an actuator according to the stroke of a metering cylinder by constituting it to move a subcylinder and a subpiston both when external force acting on a metering rod is smaller tha...  
JPH0233881B2  
JPH02193668A
PURPOSE: To provide a table for medical operation and/or examination, which is operated accurately and makes the table top part to respond better by installing a valve device having a rotating valve element that enables to control whole ...  
JPH0293501U  
JPH0217784Y2  
JPH0220841B2  
JPH0253501U  
JPH0213161B2  
JPH0244101U  
JPH0280803A
PURPOSE: To ensure good frequency dynamic characteristic by connecting numbers of piezoelectric pump elements as a pumping device to both fluid chambers of a cylinder through two check valves respectively functioning oppositely. CONSTITU...  
JPH0266301A
PURPOSE: To aim at miniaturizing a hydraulic servomechanism, at reducing noise and the running cost thereof by providing a hydraulic cylinder for performing servomotion, a servomotor adapted to be driven in accordance with an output from...  
JPH0246302A
PURPOSE: To achieve sufficient acceleration and pressure intensification by moving two pistons forward and backward as driving sources, and by transferring the movement of the piston to a third piston via the fluid filled in an operating...  

Matches 501 - 550 out of 923