Abstract: A resin-made pipe joint enhancing sealing property between a joint body and a sleeve. The joint body and the sleeve are produced by using a fluorine resin. A sealing portion which seals between the inner circumferential surface of an inserting portion of the sleeve and the outer circumferential surface of the inner cylinder portion is formed by press-inserting the inserting portion into a groove portion of the joint body. When, with respect to the inserting and groove portions, an insertion rate of the inserting portion to the groove portion is indicated by X, and a multiplying factor of the radial width of the inserting portion to the radial width of the groove portion is indicated by Y, the resin-made pipe joint has the insertion rate and multiplying factor which are within a range defined by following Expressions (1) and (2): Y=?0.218X+1.218??(1) and Y=?0.67X+1.67.

Abstract: A pipe joint, made of synthetic resin, including: an inner ring; a joint body having an annular sealing groove and a male screw portion formed on an outer circumference; a union nut having a female screw portion formed on an inner circumference to be tightened onto the male screw portion of the joint body, such that a first opposing surface is formed in the joint body to be perpendicular to an axial direction, and a second opposing surface is formed in the union nut to oppose the first opposing surface. An engagement projection is provided in one of the first opposing surface and the second opposing surface. An engagement recess is provided in the other of the first opposing surface and the second opposing surface such that the engagement projection engages with the engagement recess when the union nut has been tightened up to an appropriate position.

Abstract: A mechanical seal includes a rotating ring on a rotary shaft, a stationary ring facing the rotating ring in an axial direction, and an elastic means configured to press the rotating ring or the stationary ring toward each other to contact opposed sealing surfaces of the rotating ring and the stationary ring. The mechanical seal partitions a first space and a second space. The first space and the second space are located in the axial direction with the sealing surface interposed therebetween. The stationary ring is made of a sintered compact of SiC. A diamond film is formed on a sealing surface of the stationary ring facing the rotating ring. A diamond film continuous with the diamond film of the sealing surface is formed on an outer circumferential surface or an inner circumferential surface of the stationary ring. Volume resistivity of the stationary ring is 101 to 104 ?·cm.

Abstract: A pipe-connecting device including a resin-made tube and an inner ring. The inner ring has a flared portion and a tip-contracted outer-circumferential flared surface. The tip-contracted outer-circumferential flared surface is press-inserted into an end portion of the tube to cause the end portion of the tube to be flared and deformed. A section shape of the outer-circumferential flared surface in a direction extending along an axis of the inner ring body is formed into a convex curved surface passing through a first place, which is a maximum-diameter portion of the flared portion, a second place, which is the tip end side of the flared portion of the inner ring body, and a third place, which is between the first place and the second place, and in which a diameter is equal to an outer diameter of the tube with respect to the axis.

Abstract: A pipe joint made of synthetic resin comprises a first opposing surface formed in a joint body perpendicular to the axial direction, and a second opposing surface formed in a union nut that opposes the first opposing surface. An engagement projection is provided in the second opposing surface that projects toward the first opposing surface. An engagement recess is provided in the first opposing surface such that the engagement projection engages with the engagement recess when the union nut has been tightened up to an appropriate position.

Abstract: A pipe-connecting device includes: an inner ring having: an outer circumferential portion having a tip-contracted outer-circumferential flared surface that is to be press-inserted into an end portion of a tube to flare the tube, and an inner circumferential portion constituting a fluid transfer path; a pipe joint body that has a tubular screwing portion having an external thread; and a union nut having an internal thread that is screwed with the external thread. The inner ring including the tube is inserted into the tubular screwing portion, and the tip-contracted outer-circumferential flared surface is pressed through the tube by a pressing portion of the union nut. The pressing portion of the union nut is formed into an inclined inner circumferential surface that is inclined in the same direction as the tip-contracted outer-circumferential flared surface with respect to the axis of the tubular screwing portion.

Abstract: A yarn in which slipping of filler materials from a tubular member can be reduced while suppressing the manufacturing cost is provided. The yarn has a tubular member, and a plurality of filler materials that are formed into a strip-like shape, and is configured by loading the filler materials into the tubular member in a state where the longitudinal directions of the filler materials are made extending along the axial direction of the tubular member. In the yarn, the tubular member is configured by using wire material that is knitted so as to produce stitches. The wire material has arcuate loop portions that define parts of external shapes of the stitches. In a state where the tubular member is developed, the loop portions are expanded in a direction that is inclined with respect to a straight line that extends in the axial direction of the tubular member.

Abstract: Provided is a rotary joint that allows a case body to be made compact. A rotary joint includes: a cylindrical case body having a plurality of first flow passages formed therein; a shaft body having a plurality of second flow passages formed therein; rolling bearings and provided in an annular space formed between the case body and the shaft body; a plurality of tubular members provided in the annular space and each having a third flow passage formed for connecting the first flow passage and the second flow passage; a first seal configured to prevent leak of a fluid flowing through the first flow passage and the third flow passage; and a second seal configured to prevent leak of a fluid flowing through the third flow passage and the second flow passage.

Abstract: [Object] To improve the directional characteristics of a planar antenna for a milliwave band as well as widening a bandwidth. [Means for Settlement] A feed line 13 has a main feed line 21, two sub-feed lines 22, and a distributor S2 adapted to branch the main feed line 21 into the two sub-feed lines 22. The distributor S2 includes: two outer edges 30L and 30R formed as curved lines connecting both side edges 21L and 21R of the main feed line 21 to first edges 221 of the sub-feed lines 22; and an inner edge 31 connecting second edges 222 of the sub-feed lines 22 to each other, in which the inner edge 31 is configured to include two inner curved lines 31L and 31R that are convex in mutual directions, and has a pointed shape that is concave toward the main feed line 21 side.

Abstract: A titanium-oxide catalyst containing catalytic metal shows catalysis under high temperature conditions. A titanium-oxide catalyst contains a titanium-oxide nanoparticle assembly and ruthenium particles. The titanium-oxide nanoparticle assembly is an assembly of titanium-oxide nanoparticles, which are nanoparticles of titanium oxide. The ruthenium particles have a smaller particle diameter than the titanium-oxide nanoparticle assembly and the titanium-oxide nanoparticles. The ruthenium particles are dispersed and supported on a surface of the titanium-oxide nanoparticle assembly.

Abstract: A titanium-oxide catalyst containing catalytic metal shows catalysis under high temperature conditions. A titanium-oxide catalyst contains a titanium-oxide nanoparticle assembly and ruthenium particles. The titanium-oxide nanoparticle assembly is an assembly of titanium-oxide nanoparticles, which are nanoparticles of titanium oxide. The ruthenium particles have a smaller particle diameter than the titanium-oxide nanoparticle assembly and the titanium-oxide nanoparticles. The ruthenium particles are dispersed and supported on a surface of the titanium-oxide nanoparticle assembly.

Abstract: Provided is a distributor capable of reducing insertion loss while suppressing a ratio in power distribution among output lines from being changed. The distributor 4 is a distributor that is connected with an input line Lin and output lines Lo1 to Lo3 respectively formed on a dielectric substrate 10 as microstrip lines, and distributes to the output lines Lo1 to Lo3 high frequency power fed from a feeding point to a branching point through the input line Lin. In addition, the distributor 4 is configured to include a stub area 42 that is formed in the input line Lin, is separated from the branching point 41, and has a rectangular shape wider than line widths of a first area La and a second area Lb of the input line Lin.

Abstract: A sealing material composition which comprises sheet-like members containing expanded graphite, and which hardly causes the sheet-like members to be broken is provided. A sealing material composition 1 comprises: a stacked body 5; and a long surrounding body 6 which surrounds the stacked body. The stacked body has a plurality of sheet-like members 10 each of which is formed into a tape-like shape by expanded graphite. In the stacked body, the plurality of sheet-like members are stacked in a direction which intersects with the longitudinal direction of the surrounding body, and, in the plurality of sheet-like members, sheet-like members which are adjacent to each other in the stacking direction are disposed to be displaced from each other in the longitudinal direction of the surrounding body, in a relatively movable manner.

Abstract: A gland packing includes an annular packing body which is formed by winding an expanded graphite tape material in a spiral shape and a laminating member that is bonded to an axial end surface of the packing body and is formed of an annular expanded graphite sheet material, the axial end surface of the packing body being provided with a protrusion facing and contacting an inner peripheral portion or an outer peripheral portion of the laminating member in the radial direction, in which a contact surface between the protrusion and the laminating member is formed so that a radius changes in at least a part in the axial direction.

Abstract: An exhaust pipe structure has: an exhaust pipe through which exhaust from an engine flows; a communicating portion that is formed in a lower surface side of the exhaust pipe further toward a downstream side, in a direction of flow of the exhaust, than a catalyst device provided at the exhaust pipe, and that communicates an interior and an exterior of the exhaust pipe; and a porous body that is disposed at the communicating portion and that leads moisture, which is at the interior of the exhaust pipe, to the exterior of the exhaust pipe by capillary action.

Abstract: A rotary joint includes a tubular case body, an outer cylinder body provided to be relatively rotatable inside the case body, an inner shaft body provided to be relatively rotatable inside the outer cylinder body, a first mechanical seal for forming flow passages that connect a first flow passage of the case body and a second flow passage of the outer cylinder body to each other by dividing a first annular space formed between the case body and the outer cylinder body, and a second mechanical seal for forming flow passages that connect a third flow passage of the outer cylinder body and a fourth flow passage of the inner shaft body to each other by dividing a second annular space formed between the outer cylinder body and the inner shaft body.

Abstract: An antistatic cover which, when the cover covers an insulating resin-made tube, can enhance the certainty of preventing the tube from being electrically charged, and can facilitate attachment to and detachment from the tube. The tubular cover body, is divided in a circumferential direction to form first and second divided portions. The cover body is elastically deformed such that the first and second divided portions separate from each other, and allow the tube to pass through between the first and second divided portions. The cover body has a plurality of first cutaway portions, which pass through at least one of the first and second divided portions in a radial direction of the cover body, and is configured such that, when the cover body is fitted onto the tube, a part of the tube can be exposed through the plurality of first cutaway portions.

Abstract: Provided is a floating ring type mechanical seal in which a floating ring is pinched and held between a rotary ring provided in a rotary shaft and a stationary ring provided in a seal casing to be movable in an axial direction while being urged toward the rotary ring so that a relative rotation of the floating ring with respect to the stationary ring is inhibited. The rotary ring is made of a sintered compact of SiC or cemented carbide. A diamond film is formed on a sealing surface sliding on the floating ring in the rotary ring. A diamond film continuous to the diamond film of the sealing surface is formed on an outer peripheral surface of the rotary ring and a rear surface, which is a surface opposite to the sealing surface, in the rotary ring.

Abstract: An end surface-contact mechanical seal that is configured so as to seal by means of a relative rotational sliding contact action of sealing end surfaces (5a, 6a) which are opposing end surfaces of a fixed sealing ring (6), which is fixed to a rotating shaft (4), and a movable sealing ring (5), which is held by a seal case (3) so as to be movable in an axial direction, the mechanical seal being provided with a flushing means (8) for discharging a flushing liquid (F) from a flushing passage (81) formed in the seal case (3) toward the relative rotational sliding contact portions (5a, 6a) of the sealing rings (5, 6), wherein coating layers (9a, 10a) and (9b, 10b), which are composed of a material having a higher heat conduction coefficient and hardness than the constituent material of the sealing rings (5, 6), are formed continuously on portions of the surfaces of the sealing rings (5, 6) where the flushing liquid (F) makes contact with and on the sealing end surfaces (5a, 6a), and the relative rotational sliding

Abstract: A gasket in which a high sealing property can be ensured, and a method of producing such a gasket are provided. A gasket 1 is produced by spirally winding a belt-like composite body 13 having a metal mesh member 11 and expanded graphite 12 enveloped by the metal mesh member, and then compression molding the composite body into a tubular shape. The gasket includes a first sealing portion 21 placed in one axial end portion, and a second sealing portion 22 placed in the other axial end portion. The gasket has a sectional shape in which the composite body that is in a bent state overlaps in a radial direction. The composite body includes a bent portion which is radially bent in an acute angle shape.