189results about How to "Keep airtight" patented technology

An automatic urine disposal device has a urine receptacle for suctioning urine discharged by a device wearer. A urine drainage port is formed on this urine receptacle, and from this urine drainage port, urine is directed into a urine tank. The urine tank is sealed by a lid, and tube guide holes are formed on the lid. The urine drainage tube is connected to one of the tube guide holes via a mounting fixture while maintaining the airtightness of the urine tank, and the urine drainage tube can be detachable from/attachable to the tube guide hole.

Impurity is removed from gas, the resultant gas is introduced into a cell 15, and the intensity of light transmitted through the cell 15 is measured as a reference. Gas containing impurity of which concentration is known, is introduced into the cell 15, and the intensity of light transmitted through the cell 15 is measured with the temperature and pressure maintained at those used at the measurement of the reference light intensity. Then, the absorbance of the impurity is obtained according to the ratio of the two light intensity data obtained by the two measurements above-mentioned. The impurity absorbance thus obtained is stored, in a memory 20a, as a function of an impurity concentration. Gas containing impurity of which concentration is unknown, is introduced into the cell 15, and the intensity of light transmitted through the cell 15 is measured with the temperature and pressure maintained at those used at the measurements above-mentioned. The absorbance of the impurity is obtained according to the last-measured light intensity and the reference light intensity. The absorbance thus obtained is applied to the function, thereby to obtain the impurity concentration.

The present invention provides a joint hose slippage prevention apparatus for preventing slippage of a joint hose connecting a suction pipe extending from a compressor and a suction pipe extending from a throttle body. The joint hose slippage prevention apparatus comprises a tension stay that fastens the compressor side and throttle body side, with ends connected to the compressor side and the throttle body side. Consequently, when the compressor side and throttle side almost separate from each other, they are held down by the tensile strength of the tension stay, whereby the relative positional relation between the compressor side and throttle side is maintained. Accordingly, it is possible to prevent the joint hose from slipping off.

An airtightness maintaining structure for a butterfly valve includes a valve element having a rotating shaft and a valve body, a rotation supporting portion having a pivotably supporting member that fits onto the rotating shaft and pivotably supports the rotating shaft, and a rotating shaft seal arranged to contact in a fitting state both an end surface of a member on an outer radial and a surface of a member on an inner side either the rotation shaft or the pivotably supporting member and has an annular portion. In a closed valve state of the valve element, the rotating shaft seal moves radially due to a pressure difference between a high fluid pressure acting on one side of the valve element and a low fluid pressure acting on the other side and contacts both the valve element and the rotation supporting portion on the high fluid pressure side.

The invention relates to a grouting method for a blast furnace, aiming to enhance the grouting success rate of the blast furnace. In the invention, the temperature of a furnace shell of the blast furnace is measured by using infrared imaging scanning and an infrared temperature measuring instrument to find out the position with relative high temperature; the position is taken as a datum point, holes are bored at vertical or transverse interface parts between two cooling walls or among three cooling walls which are adjacently installed at the upper side, the lower side, the left side and the right side; a hollow drill is used to drill through the furnace shell firstly, then drill through fillers between the furnace shell and the cooling wall, continuously drill a hole forwards to drill through the cooling wall, and then drill through unshaped ramming materials or pouring materials between a brick lining and the cooling wall; a drilling channel is cleaned; a grouting channel is dredged,lubricated and preheated; and an amount upper limit value of grouting is controlled to be 60 kg to 120 kg; proper grouting pressure is ensured, when the brick size of the brick lining is small and isnot provided with a brick locking groove, the grouting pressure is relative low to be generally controlled to be 1.0 MPa-1.5 MPa, and when the brick size of the brick lining is large and is provided with the brick locking groove, the grouting pressure is relative high to be generally controlled to be 1.0-3.0 MPa.

The invention relates to a preparation method of a polymeric material, in particular to a preparation method of epoxidized 1, 2-polybutadiene. Preparation steps of the preparation method are as follows: composition A and composition B are added to a reaction flask and stirred by magnetic force at the temperature of 65 DEG C until the composition A is dissolved; composition C and composition D are added to the reaction flask and stirred fully and uniformly; quantitative composition E is added to a system and reacted for a period at the constant temperature; after the reaction is finished, a product is poured out; absolute ethyl alcohol is added for precipitating a solid, sedimentation is performed for a period, suction filtration is performed, and a sodium bicarbonate solution and distilled water are used for washing a product solid for a plurality of times respectively; and the washed product solid is put into an oven for vacuum drying for 12 h at the temperature of 60 DEG C, and a product is obtained. The invention provides a synthesis method for epoxidizing 1, 2-polybutadiene. The prepared epoxidized 1, 2-polybutadiene can be used for toughening modification of other high polymer materials (such as nylon, epoxy resin and the like).

In an electronic control unit, a case has a peripheral side portion formed with a concave groove in which a connector is fitted with a clearance portion between the concave groove and the connector. The connector has first inclined portions connecting its lateral surface (one of its base surfaces) and its longitudinal surface (the other of its base surfaces). Each first inclined portion is inclined with respect to the lateral surface at a first angle. The concave groove comprises a base surface opposite to a lateral surface of the connector and second inclined portions opposite to first inclined portions of the connector, respectively. Each second inclined portion is inclined with respect to the base surface at a second angle. The second angle is larger than the first angle. A seal member is disposed in the clearance portion between the connector and the concave groove of the case so that the seal member seals the clearance portion therebetween.

A wire harness includes a plurality of cables arranged in parallel, and a connector including a housing to which end portions of the plurality of cables are connected. An air-tight block includes two closing parts, an insertion part, a press receiving part, and an air escape opening part that opens from a cable insertion hole between the closing parts toward an outside of the air-tight block. Air-tightness between the air-tight block and the cables is maintained by a first step that a melting member is vibrated and pressed to the press receiving part to have a melt resin, which is poured into a gap between the closing parts, and a periphery of the cables is covered with the melt resin, a second step that the air escape opening part is closed, and a third step that the cables are pressed by the melt resin poured into the gap.

The invention provides a spring and electromagnetism assist damping device. The spring and electromagnetism assist damping device comprises an upper shell, a lower shell, a circuit box, a supporting device, an energized solenoid and a support, wherein the upper shell can move upwards or downwards relative to the lower shell, the circuit box comprises a variable resistor and a power source, the circuit box is connected with the supporting device and the energized solenoid respectively, and the supporting device comprises a pressure plate, a magnet and a spring. A clamping groove welded to the pressure plate can drive a sliding block on a slide rheostat to move at the same time. Because of movement of the sliding block on the slide rheostat, resistance of the slide rheostat changes so as tochange the electric current in a circuit, the magnetic field intensity of the energized solenoid is changed then, the magnitude of magnetic field repulsive force between the energized solenoid and thedisk-shaped magnet is changed, and the spiral spring is assisted with damping. Leakproofness of the whole spring and electromagnetism assist damping device is kept, a damping effect is enhanced, andthe service life of the damping spring is prolonged. The spring and electromagnetism assist damping device has the advantages of being simple in structure, automatic in damping adjustment and applicable to various shock occasions.

A detecting device includes a housing, a detecting unit mounted to the housing, and a terminal insert-molded to the housing. One end of the terminal is electrically connected with the detecting unit, and the other end of the terminal has a rising portion and is led out of the housing. The housing has a gate side and a columnar terminal lead-out portion. The gate side is disposed in correspondence with a gate into which a resinous material is injected during injection molding. The terminal lead-out portion covers a base of the rising portion of the terminal. The terminal has a protrusion at the base of the rising portion. The protrusion protrudes up to a surface of the terminal lead-out portion in a direction that is substantially parallel to a direction perpendicular to the gate side.

There is disclosed an FED (field emission display) capable of supplying an anode voltage, which is a high voltage, to an anode substrate with high reliability. A high voltage introduction button is sealed to a sealing plate, in which a contact spring is attached to the high voltage introduction button by spot welding. The high voltage introduction button has a flat portion connected to the contact spring, a sealing portion sealed to the glass substrate, and an external terminal to be connected to an external power source. The contact spring contacts an anode terminal of an anode substrate with an appropriate contact pressure, by a spring force from an arm portion of the contact spring. The anode terminal is formed of a conductive film containing metal particles.

The present invention provides a coolant reservoir tank for a fuel cell vehicle, in which the coolant reservoir tank is positioned at a bottom of the vehicle such that coolant in a coolant line is collected in the reservoir tank by gravity during shutdown of a fuel cell system and the coolant in the reservoir tank is supplied to the coolant line by a vacuum pump during startup of the fuel cell system.

For this purpose, the present invention provides a coolant reservoir tank including: a coolant reservoir tank for a fuel cell vehicle, the coolant reservoir tank comprising: a reservoir housing having a predetermined volume of space; a cover for covering the top of the reservoir housing; and a plurality of ports detachably provided on at least one portion of the cover, wherein the reservoir housing and the cover are connected by a hinge type fastening member.