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Patent Searching and Data


Matches 651 - 700 out of 981

Document Document Title
JPS59222681A
PURPOSE:To make stable control attainable, by setting up a check valve and a control spool in series inside a body. CONSTITUTION:A check valve R and a control spool S are set up in series inside a body 14, while a spring 19 is installed ...  
JPS59197677A  
JPS59180184A
PURPOSE:To prevent lowering of packing surface pressure along the depth of a valve ground portion and to enhance packing surface pressure of the lowermost portion to improve performance of preventing leakage of a fluid by operating a sur...  
JPS59152272U  
JPS59146670U  
JPS59170574A  
JPS59159473A  
JPS59131675U  
JPS59151676A
PURPOSE:To achieve reliable work and to improve assembling work by fitting an auxiliary operating board idly to a rotary shaft of main valve then inserting the main valve rotary shaft through a bearing fitted in the groove of cover to us...  
JPS59147174A
PURPOSE:To decrease required driving force, by sealing noncompressible fluid in a sealed vessel so as to equalize pressures between a valve part and a driving part partitioned by a flexible film. CONSTITUTION:A proportional control valve...  
JPS59122474U  
JPS5926131Y2  
JPS5927476B2  
JPS5999140U  
JPS5989870A
PURPOSE:To absorb dislocation of the axis of valve sleeve with respect to the valve body, by furnishing sleeve movably in the valve body, fitting a valve spool slidably in the bore of this sleeve, and thereby facilitating high precision ...  
JPS5989869A
PURPOSE:To reduce the drive force required to switch the rate of flow to high- speed position, by quickly lowering the axial thrust force of a valve spool, given by a fluid to be controlled, in accordance with increase in the amount of o...  
JPS5920064B2  
JPS5962364U  
JPS5956466U  
JPS5910457Y2  
JPS597877B2  
JPS595259Y2  
JPS5919779A
PURPOSE:To enable to reduce the spool actuating force without producing hydraulic force, by operating an unloader valve by moving a spool, and opening and closing a confluent port. CONSTITUTION:When the oil is introduced into a confluent...  
JPS5917078A
PURPOSE:To balance two balance chambers with each other through offsetting of the biassing forces of a liquid pressure exerted on a valve body, by constituting a valve such that a piston having the same pressure receiving area as that of...  
JPS5910564U  
JPS59500109A  
JPS596668U  
JPS596667U  
JPS594875U  
JPS58191471U  
JPS58191479U  
JPS58217865A
PURPOSE:To reduce an opening and closing force, by providing a main hollow valve plunger which reciprocates in a cylindrical valve casing to open and close a liquid supply/drain port at one end of the casing and by providing an auxiliary...  
JPS58217864A
PURPOSE:To provide a valve of enough strength, by fixing a valve stem to a support, securing the support on the body of the valve, fitting the upper part of a main valve body with a minute clearance into the small-diameter part of the su...  
JPS58187668U  
JPS58153781U  
JPS58170974A
PURPOSE:To make a drive motive for valve stem in light weight, small size and simple construction, by furnishing a pressure balancing mechanism which the valve stem penetrates, in the valve box and by forming the sectional area of the ch...  
JPS58144162U  
JPS58144004U  
JPS58132275U  
JPS58129005U  
JPS58129004U  
JPS58114967U  
JPS58108202U  
JPS58108201U  
JPS58106503U  
JPS58109775A
PURPOSE:To accelerate closing of a valve by an amount which is required and sufficient enough, by providing a guide with a balancing hole, in a system provided with a guide for protecting a cylindrical valve body. CONSTITUTION:A cylindri...  
JPS5882573U  
JPS5891972A
PURPOSE:To get rid of a possibility of a fluid leakage as well as to get off with a small operating effort, by dividing the valve body of a direct-acting type switching valve into halves, a portion being secured tight to a control layer ...  
JPS5879178U  
JPS5824688Y2  

Matches 651 - 700 out of 981