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JP2003222256A |
To provide a gas-venting valve which prevents the occurrence of an air pocket of a hydrogen gas and do not hinder normal opening/closing of a valve element even if clogged by dusts, by providing the valve element at the top of a device s...
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JP2003214550A |
To provide a negative pressure breaking valve which surely dissolves a negative pressure in piping even if the negative pressure in the piping is small and in which liquid in the piping is hard to flow out.This negative pressure breaking...
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JP2003194249A |
To provide a negative pressure breakdown device capable of certainly preventing a counterflow from a storage tank even if any operational abnormality occurs and precluding a leakage resulting from a pulsated propagation.A check valve 81,...
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JP2003194408A |
To surely prevent reverse inflow from a storage tank side even in an abnormal operation.A hot water filling solenoid valve 53, an edge cutting valve set 7 and check valves 54, 55 are mounted in a hot water filling channel 50 branching fr...
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JP2003194247A |
To provide an exhaust valve capable of being closed after completion of the exhaustion even if the pressure on the inlet port side is high.A valve chest 3 furnished with an inlet port 4 in the lower part and with an outlet port 5 in the ...
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JP2003194248A |
To provide an exhaust valve capable of being closed after completion of the exhaust even if the pressure on the inlet port side is high.A valve chest 3 furnished with an inlet port 4 in the lower part and with an outlet port 5 in the upp...
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JP3423116B2 |
To adjust a gas liquid ratio between air, sucked in a sewer pipe in a vacuum, and sewage, to a proper value and to stabilize suction and conveyance of sewage. A vacuum valve 15 is provided with a liquid level detecting pipe A (37) wherei...
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JP2003184680A |
To provide a cut-off valve of a structure not causing leakage of fuel when a vehicle is revolved at the time of full fuel filling.Because a first space 2f having depth which is at least twice of the inside diameter of an inlet hole 2g is...
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JP2003185045A |
To provide an air valve capable of saving the trouble some labor of disassembling after removing the air valve from a water passage pipe and easily and surely cleaning the inside even if clogging generates in a valve caused by foreign ma...
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JP2003185046A |
To provide a liquid cut-off valve equipped with a reliable valve mechanism capable of closing without suddenly raising internal pressure of a vessel when liquid level rises and surely opening when liquid level lowers.A first float 8 and ...
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JP3422678B2 |
To improve sealing characteristics of a differential pressure valve when it is closed by composing engaging means for engaging a diaphragm with an abutting member so as to allow relative movement in the direction generally perpendicular ...
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JP3418871B2 |
To solve malfunction that there is a possibility to contaminate water in the inside of a pipe by poor workability caused by insufficient shut-off when an air valve interposed in a pipeline is inspected and repaired. This air valve attach...
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JP2003171965A |
To suppress the destruction of a fixing part of a flow rate adjusting unit due to a load applied to a water supply connection part when performing construction.A runout suppressing wall 15 is provided in a back plate 3 part through which...
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JP2003166448A |
To provide a method for attaching a fuel vapor vent of float operation type to an inner face of a fuel tank and welding the valve to the fuel tank, and also to provide a combination of a vent valve assembly with the fuel tank.The fuel va...
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JP3414114B2 |
To suppress generation of a vapor odor in the vicinity of a drain tube, by providing a plurality of opening ports opening vapor in the drain tube, also separating each opening port from each other. In a lower part of a canister 1, a drai...
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JP3411131B2 |
To keep a pressure of fluid in a cylinder in a holding state even when a pressure fluid feeding device is removed and to fix a position of a piston inserted in the cylinder by a method wherein a valve element is energized to a branch pas...
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JP2003148652A |
To provide a suction valve to be used to facilitate water exhaustion by sucking in the air automatically to a pipe when water is bled using a water bleeding cock for preventing freezing.An auxiliary valve 13 or an auxiliary valve storing...
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JP2003139002A |
To provide a fuel shut-off valve 20 for preventing the flow of a fuel to the outside even in the case of receiving great transversal waves or push-up waves while turning a vehicle.The fuel shut-off valve 20 comprises a casing body 30, a ...
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JP2003130241A |
To provide (1) a reduction relief valve correspondable to a small reduction state excellent in chemical resistance and (2) a reduction/pressurization relief valve correspondable to a small reduction state and a small pressurization state...
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JP3400611B2 |
PURPOSE: To prevent effusion of oil from an air breather. CONSTITUTION: An air breather 2 comprises a pipe 6, a float 7 and a washer 8. The pipe 6 has a vertically extended hole 6a, and a throttle part 6b is formed in the hole 6a. The fl...
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JP2003118785A |
To provide a valve which is of simple structure and can be easily mounted on any type of pressure vessel.A valve body 2 is formed of an elastomer material. A stem 3 of the valve has a corresponding profile 8 of an outlet duct and a profi...
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JP2003120449A |
To provide a float operated vent valve assembly for fuel tank which completely closes a vent port during refueling and completely open the vent port again at the time of operating an engine.In this float operated vent valve assembly 10 f...
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JP2003113953A |
To provide a vent valve structure preventing deformation of a fuel tank due to negative pressure without separately providing a relief valve under a condition of over-fuel, parking on a slope or traveling, and negative pressure in the fu...
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JP2003108233A |
To prevent water leakage in case of breakage of a pressure- displacement conversion element.In a pressure reducing valve 1, a ventilation path 29 communicating with the outside is provided to a spring room 3 sealed in watertight by a pre...
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JP3393788B2 |
To provide a stable operating liquid cutoff valve device to prevent leakage of fuel by maintaining stable closing characteristics even during a fall down, and perform stable operation through reducing unevenness in a feed oil amount due ...
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JP2003091321A |
To make uniform the size of a gap in a contact interface in a flow controller used in various kinds of analyzers.A monocrystal silicon substrate in which the face orientation is inclined at an angle of several degrees from the (111) face...
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JP3389070B2 |
To suppress generation of wear at a contact part of a locker arm and the upper end surface of a valve, and improve durability. In a valve system for an internal combustion engine, a contact part of a locker arm 1 and the upper end surfac...
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JP2003081080A |
To provide a reservoir which can prevent a liquid in a vessel from leaking outside via a vent structure.In the reservoir having a breather B to communicate the inside with the outside of the vessel 1 which is provided with a labyrinth 5 ...
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JP2003074738A |
To easily manufacture products of various shape and to contribute to productivity.This float valve element 10 is lifted in response to the fluctuation of the water level of city water W in a water pipe WP and functions to allow the inflo...
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JP3382586B2 |
To provide a water storage tank capable of surely preventing the occurrence of a backflow by negative pressure inside of a water supply pipe when there is something wrong in the water supply pipe. A male screw 22a of a mounting cylinder ...
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JP3380167B2 |
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JP2003049961A |
To rapidly release air and reduce a cost for an air vent adapter used when releasing air from an air filled body comprising a weak sheet material such as a vinyl boat with a portable vacuum cleaner for a vehicle or a vacuum cleaner for d...
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JP2003506269A |
The invention concerns a valve (5) for a package containing a product, said valve (5) communicating with at least an opening (7) emerging inside the package and comprising two walls between which is arranged a sealing compound solid or p...
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JP3377366B2 |
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JP2003042322A |
To solve the problem of a conventional vacuum breaker that water is leaked from an air intake port to dirty the floor surface inside a toilet space because seal of the air intake port is imperfect caused by the scale, silica or calcium c...
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JP2003505654A |
A valve (10) for a fluid tank, comprising a housing formed with one or more inlet (28) and outlet (20) ports, side walls and a seating wall (14) portion supporting a float-type valve member. The valve member is axially displaceable withi...
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JP3375589B2 |
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JP3372603B2 |
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JP3374190B2 |
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JP3374120B2 |
A float valve mounted to a tank body made of a synthetic resin. A welding flange provided on a cover made of a synthetic resin having a large swelling rate is welded to an outer periphery of an opening defined in an upper wall of a tank ...
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JP3370255B2 |
To ensure the air bleed of very small flow amount under a valve opening pressure or less or a long period without clogging. A device has a first evaporation line extended from a fuel tank, negative pressure cutoff valve provided in a mai...
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JP3369048B2 |
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JP2003014150A |
To provide an exhaust structure for an air valve, capable of preventing external outflow of a liquid even when an exhaust hole is not completely closed due to foreign matters such as contaminant.The air valve is provided with a valve cas...
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JP3366595B2 |
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JP2003004127A |
To provide a breather with functions of precisely adjusting the inner pressure of a casing and securely preventing penetration of water from outside.The breather 200 mounted in the casing 250 of an automatic transmission for adjusting th...
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JP3363765B2 |
To provide a valve to be mounted easily on any type of pressure vessels by inserting a valve spindle body into a valve main body made of elastomeric materials and supporting the spindle rockably centered at a spherical form part so that ...
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JP3359515B2 |
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JP2002357282A |
To provide an air valve capable of applying the valve to the embedding in a sharrow layered spot with its height reduced. The air valve comprises a valve chamber 2 having an inlet port 2A communicating with a conduit 1, float 3 contained...
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JP2002349737A |
To provide an air valve that can prevent a malfunction of a valve element by suppressing an adverse effect on a float of an inflow of bubbles in a valve casing and suppressing generation of splash and dust scatter. The air valve comprise...
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JP2002349736A |
To provide an air valve that can prevent external leakage of sanitary sewage and the like by reducing the frequency of opening and closing of a valve element and suppressing splash and dust scatter while maintaining an appreciable exhaus...
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