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JPH1130203A |
To provide a driving system for a rotary type fluid pressure equipment, capable of thoroughly avoiding foreign matter for entering from outside even under adverse conditions. This device is provided with 1st and 2nd cylinders 1, 2, a pip...
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JPH10329546A |
To provide an opening and closing control device which eliminates faults due to the degree of height of an operator and is easy to hold a back door at any opening by remotely controlling the opening and closing of the back door from an o...
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JPH10325401A |
To provide a bilateral position and force transmission device to be excellent in complementary ability between operation of a cylinder on the master side and operation of a cylinder on the slave side and reduce size, and to provide a reh...
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JPH10512658A |
A hydraulic actuator (10) which controls the operation of a cylinder valve having a valve seat (11), and a valve element (12) which is linearly reciprocable between open and closed positions with respect to valve seat (11), a valve seal ...
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JPH10318204A |
To perfectly prevent the intrusion of foreign matter from outside even in the bad condition by connecting both rods of an input side cylinder and an output side cylinder having a different pressure receiving are to each other, and connec...
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JP2823678B2 |
According to an illustrative example of the present invention a hydropneumatic positioning device comprises a tubular container. A hollow piston rod is guided through one end of the tubular container. A piston is connected with the pisto...
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JP2807751B2 |
A discharge flow control system and method of a hydraulic pump driven by an engine for the minimization of the difference between a discharge amount of flow in the pump and total amount of operating oil necessary to operate each actuator...
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JP2805324B2 |
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JPH10234509A |
To provide a vertically movable chair appropriate for a physically handicapped person to stand up when he/she is on a tatami or inversely to sit down on the tatami. In a chair of the structure with a vertically movable seat, the seat of ...
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JPH10184602A |
To inexpensively manufacture a partition piston having the lightness in weight, and to keep sufficient sealing effects at any incorporated position. A partition piston 13 accommodated in a cylinder hole 11 is formed of a sleeve deep draw...
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JP2736336B2 |
A power unit essentially consisting of a pump (2) and a cylinder (1) for driving a tool has a high-pressure space (1a) and two low-pressure spaces. The high-pressure space (1a) and the first low-pressure space (1b) are separated from one...
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JPH109202A |
To machine steel materials or the like of small size. A bending device 1 is made up of a pump unit 3, a bender unit 5, and a connecting pipe 6 for connecting both the units 3, 5. The pump unit 3 is set to an operating device 2 so that it...
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JPH09177667A |
To change the capacity of a hydraulic tank according to the surplus flow rate or insufficient flow rate used of a fluid pressure actuator. A hydraulic package is constituted such that a driving motor 2 and a hydraulic tank 10 are dispose...
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JPH09170601A |
To solve the problem that the pressure of the suction part of a hydraulic pump is dropped unusually, cavitation is generated and the generation of a noise and the destruction of the hydraulic pump are brought, when the rotational speed a...
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JPH0988906A |
To provide a liquid hydraulic drive device with a flywheel being small and light weight, with enough endurance against the variation of load and capable of being controlled easily and accurately. An electric motor is connected directly w...
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JPH0976996A |
To provide a hydraulic circuit for a tilting device of a ship propulsion machine capable of suppressing descending of a piston caused by the biting of foreign matter in a valve. Two hydraulic passages 15, 16 are connected to a hydraulic ...
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JPH0930267A |
To save the number of set up equipment items so as to attain compactness of a device total unit, by skillfully combining a pump, flow pipe, electrically operated valve and a check valve. A compression side is replaced with a suction side...
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JP2534420B2 |
A device for driving a tool in axial direction in the course of a vibration-like forward and reverse movement, which operates at high efficiency with a rapidly oscillating stroke frequency and can be used as an easily handled hand-held a...
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JPH08230638A |
PURPOSE: To provide a brake control actuator or throttle control actuator for which compatibility between a performance phase of controllability and responsiveness and the cost phase of low price setting, etc., shall be attempted. CONSTI...
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JPH08226405A |
To compensate fluid pressure losses in a closed system and fill a closed system by an ordinary filling device. A piston 1 of a working cylinder slides in a casing 2 to divide the casing into two working chambers 3, 4 containing a hydraul...
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JPH08219103A |
PURPOSE: To vary the moving amount and moving term of a drive action of a drive device by a cam simultaneously. CONSTITUTION: An oil pressure is generated by a send cam 1 and a return cam 4. This oil pressure is controlled by a feed oil ...
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JPH08128404A |
PURPOSE: To provide a fluid pressure device capable of quickly transmitting change of pressurization in relation to pressurizing force to a work, and having its smooth operation. CONSTITUTION: A circuit 48 is constituted of an action par...
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JPH08104226A |
PURPOSE: To shorten a time delay required for a pressure rise of fluid in the second fluid pressure chamber, in the case of failure in the first fluid pressure chamber. CONSTITUTION: A stop part 38 stopping advancing a small diametric pi...
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JPH0829799B2 |
A device for automatically replenishing and exchanging hydraulic fluid in the hydraulic system (such as that of a fastener placing tool (31)) comprises a lower reservoir (29) for holding new hydraulic fluid (39) and an upper reservoir (2...
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JPH0813489B2 |
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JPH0821405A |
PURPOSE: To enlarge displacement at an output end in respect to an input end by pushing the input end of a vessel, increasing volume fluctuation through buckling of an input chamber inward, and discharging fluid or soft material inside t...
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JPH0796881B2 |
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JPH07224805A |
PURPOSE: To simplify a hydraulic device without impairing the advantage of the hydraulic device that has been proved to be advantageous for scores of years and to heighten particularly the safety of the device while reducing cost and hei...
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JPH07167327A |
PURPOSE: To improve efficiency in a mechanism which is used for an actuator in which a magnetostrictive material and the like are used, liquid is used as displacement transmitting medium between a displacement generating material and an ...
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JPH0760219B2 |
A micromanipulator for an inverted design microscope comprises a needle carrier disposed between a stage and a condenser lens of the microscope for carrying a glass needle in the direction of an optical axis. It also includes a centering...
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JPH0734201U |
[Purpose] Provided is a temperature compensation valve in a hydraulically closed circuit that can reliably transmit a pressure signal from an input unit to an output unit even when the temperature of the working fluid filled in the close...
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JPH07502952A |
PCT No. PCT/EP93/00153 Sec. 371 Date Jul. 25, 1994 Sec. 102(e) Date Jul. 25, 1994 PCT Filed Jan. 25, 1993 PCT Pub. No. WO93/14963 PCT Pub. Date Aug. 5, 1993.A hydraulic master cylinder and reservoir assembly having a master cylinder body...
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JPH0721283B2 |
A hydraulic control apparatus, more particularly for operating a motor vehicle clutch release mechanism, comprising a master cylinder, a slave cylinder and a conduit connecting the master cylinder to the slave cylinder. A leakproof quick...
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JPH0726591A |
PURPOSE: To improve the workability of a hydraulic working machine by making the operating speed and speed ratio of the working machine coincident with the manipulated variable and operation ratio of an operation command section. CONSTIT...
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JPH0720026A |
PURPOSE: To provide a compression tester which can calculate and display the increase of a compressive load and moving amount of a pressing piston by driving a main cylinder which compresses a test piece by means of a small- diameter ram...
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JPH0676196U |
[Purpose] By providing a highly portable injection device powered by a battery mounted on a vehicle, the workability of injecting clutch oil is improved. [Constitution] A pump 2 driven by a motor powered by an on-board battery is integra...
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JPH0656162B2 |
A stroke variable device comprising a large diameter cylinder and a small diameter cylinder which are interconnected to each other. A large diameter piston and a small diameter piston are slidably inserted into the large diameter cylinde...
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JPH0654123B2 |
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JPH0652081B2 |
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JPH0620881Y2 |
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JPH0613004Y2 |
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JPH05509053A |
The invention concerns a master cylinder for hydraulic systems, in particular brake systems. The aim of the invention is to reduce the return stroke of the piston (3) conditioned by a compensation aperture (7) in the cylinder wall (1). T...
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JPH05321903A |
PURPOSE: To perform remote operation by small operation force regardless of the magnitude of a load and the distance-between a driving section and driven section. CONSTITUTION: A driving section A is provided with a servo valve piston 1 ...
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JPH05288160A |
PURPOSE: To provide a hydraulic actuating apparatus for avoiding the disadvantages of conventional technology, which is capable of continuing the normal hydraulic operation in the event of failure of a motor driven pump in a particularly...
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JPH05263802A |
PURPOSE: To enable an output section to be continuously rotated by forming a space consisting of two sections the inner diameters of whose inner walls are large and small respectively, providing pressurized oil supply/empty ports at both...
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JPH05223180A |
PURPOSE: To ensure accurate return movement of a second member regardless of expansion of the hydraulic fluid in a system where the movement of a first member is translated through fluid in a fluid chamber to movement of the second membe...
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JPH0553584B2 |
A hammer drill has a cylinder within a housing with the cylinder forming a piston chamber. A drive piston is reciprocally mounted within the piston chamber and is displaced by a motor. A percussion piston is located within the piston cha...
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JPH05187404A |
PURPOSE: To provide a compact stroke cylinder device adapted to be used as operating physical force transmitting mechanical element which increases and decreases the stroke of a cylinder or changes the direction thereof so as to coaxiall...
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JPH0531001B2 |
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JPH057561B2 |
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