NIPPON PILLAR PACKING CO., LTD. Patent applications |
Patent application number | Title | Published |
20160116096 | PIPE JOINT MADE OF SYNTHETIC RESIN - A pipe joint made of synthetic resin includes: a joint body including a male screw portion on an outer circumferential portion; and a union nut including a female screw portion formed on an inner circumferential portion such that the female screw portion is tightened onto the male screw portion of the joint body. An outer circumferential surface of the joint body has a projection portion that is integrated therewith and projects radially outward. An inner circumferential surface of the union nut has a convex or concave engagement portion that is integrated therewith and engages with the projection portion when the union nut is tightened up to an appropriate position. | 04-28-2016 |
20160061361 | PIPE CONNECTING DEVICE - A pipe-connecting device includes: an inner ring having an outer circumferential portion having, at a tip end, a tip-contracted outer-circumferential flared surface that flares a tube end portion; a pipe joint body that has a tubular screwing portion having an external thread; and a union nut having an internal thread. The inner ring flares the tube end portion, and is inserted into the tubular screwing portion. The tip-contracted outer-circumferential flared surface is clamped and pressed through the tube by the union nut which is screw-advanced by screwing with the tubular screwing portion. A tube pressing portion which is in the union nut, and which presses the tube against the tip-contracted outer-circumferential flared surface is formed into an inclined inner circumferential surface which is inclined in the same direction as the outer-circumferential flared surface with respect to the axis of the tubular screwing portion. | 03-03-2016 |
20160061360 | INNER RING - An inner ring, in which a tip-contracted outer-circumferential flared surface to be press-inserted into a tube end portion to flare and deform the end portion is formed on the side of the tip end of a flared portion that is formed in an outer circumferential portion of an inner ring body, a section shape of the outer-circumferential flared surface in a direction extending along the axis of the inner ring body is formed into a convex curved surface passing through: a first place, which is the tube-press-insertion side tip end of a maximum-diameter portion of the flared portion; a second place, which is the tip end on the tube press insertion side; and a third place between the first place and the second place, and in which the diameter is equal to the outer diameter of the tube with respect to the axis. | 03-03-2016 |
20160025223 | GASKET - A gasket in which a high sealing property can be certainly ensured is provided. A gasket | 01-28-2016 |
20140306846 | Microstrip Antenna - To provide a microstrip antenna that can radiate electromagnetic waves in two or more different directions while suppressing an increase in manufacturing cost. The microstrip antenna is configured to include: a dielectric substrate | 10-16-2014 |
20140292606 | ANTENNA DEVICE AND RADAR DEVICE - An antenna device according to an embodiment includes a dielectric substrate, a housing, and an interference prevention unit. On the top surface side of the dielectric substrate, a plurality of antennas is formed, and on the bottom surface side, a ground is formed, each as a conductive thin film pattern, respectively. The housing is formed of a conductive material, and formed to have a shape configured to function as a waveguide, and the top surface side of the housing is bonded to the bottom surface side of the dielectric substrate. The interference prevention unit is formed between the neighboring antennas to include at least a groove provided on the top surface side of the housing and a slit provided on the ground in the portion corresponding to the groove. | 10-02-2014 |
20140210205 | PIPE CONNECTING DEVICE - A pipe connecting device having a joint body including a fitting cylinder to which a flared synthetic resin-made tube is to be externally fitted, an external thread formed on a radially outward side of the fitting cylinder; and a union nut including an internal thread screwed with the external thread, and a tube pressing portion that presses a diameter changing portion formed between a flared portion in the tube, and a non-flared portion, in the direction of the axis. In a fastening completion state in which the tube pressing portion is caused to press the diameter changing portion by a screw advancement of the union nut, the screw advancement being produced by screwing the internal thread to the external thread, positions of a basal end of the external thread and a tip end of the union nut in the directions of axes coincident with each other. | 07-31-2014 |
20140203521 | SPIRAL GASKET - A spiral gasket includes: a gasket body having a body portion, an inner peripheral empty winding portion, and an outer peripheral empty winding portion. An inner ring having an outer peripheral surface on which an inner ring pawl portion engageable with the inner peripheral empty winding portion and an outer ring having an inner peripheral surface on which an outer ring pawl portion engageable with an outer peripheral surface of the outer peripheral empty winding portion are formed. The number of turns of the inner and outer peripheral empty winding portions are set to 5 to 10. Respective gaps are formed between the inner/outer peripheral surface of the inner/outer peripheral empty winding portion and a portion of the outer/inner peripheral surface of the inner/outer ring except for the inner/outer ring pawl portion. | 07-24-2014 |
20140072465 | Bellows Pump - A bellows pump including in its pump case ( | 03-13-2014 |
20130213130 | FLUID MEASUREMENT SENSOR ATTACHMENT STRUCTURE - The present invention provides a fluid measurement sensor attachment structure in which a fluid measurement sensor is attached to a branch pipe among three or more branch pipes branched from a pipe, thereby measuring properties of a fluid flowing through a flow path that is formed by remaining branch pipes, comprising a sleeve that can accommodate the fluid measurement sensor, wherein the sleeve is a member in a shape of a tumbler including a circumferential wall that is substantially cylindrical and a protective wall that is disposed at one end of the circumferential wall and that does not disturb a function of the sensor, a seal lip is disposed on the circumferential wall near the protective wall, and the sleeve is inserted into the branch pipe such that the protective wall is positioned near a base end of the branch pipes. | 08-22-2013 |
20130209777 | CERAMICS SLIDING MEMBER FOR USE IN PURE WATER - A ceramics sliding member for use in ultrapure water or pure water of the present invention is made of a non-continuous-pore SiC sintered body. The non-continuous-pore SiC sintered body includes β-SiC at a ratio of 20% by weight or more thereto and has an average crystal structure whose aspect ratio is 2 or greater. | 08-15-2013 |
20130038053 | WELDING JOINT AND WELDING METHOD FOR SAME, WELDING DEVICE, WELDING JOINT, RESIN PIPE WELDING DEVICE AND WELDING METHOD - A synthetic resin-made welding joint that has a pipe end portion into which an end portion of a synthetic resin-made tube is to be fitted and inserted, and that is configured so that the pipe end portion and the tube end portion which is fitted and inserted thereinto are enabled to be welded together by heating of heating means which externally surrounds the pipe end portion, therefore, a synthetic resin-made holder which is fitted and attached onto the pipe end portion is disposed, and a flange for ensuring a radial expansion gap with respect to the heating means is integrally formed in the holder. | 02-14-2013 |
20130027259 | Traveling Wave Excitation Antenna And Planar Antenna - An object is to suppress radiation of a cross polarized wave by a microstrip antenna to improve cross polarization discrimination of the traveling wave excitation antenna. A microstrip antenna wherein: a feed line | 01-31-2013 |
20120326394 | Shaft-Seal Device for High-Temperature Fluid - A shaft-seal device for high-temperature fluid including a seal case ( | 12-27-2012 |
20120112976 | ANTENNA - An antenna which reduces the number of end faces and perpendicular corners, and suffers from little deterioration of performance even if used for high frequency transmission/reception, in particular a microstrip patch antenna which is comprised of a dielectric substrate on the bottom surface of which a conductive ground plate is formed and on the top surface of which a patch antenna part formed by a conductor and a feeder circuit connected to the same are provided, wherein the feeder circuit is connected to the antenna part while offset by exactly a predetermined distance to either end side from a center of one side of said antennas part to which said feeder circuit is to be connected so that a transmission loss of the antenna becomes a predetermined value or less. The predetermined distance can be made 20 to 70% of the longitudinal side of the patch antenna part. | 05-10-2012 |
20110318207 | BELLOWS PUMP - A bellows pump which is further improved so that, without causing performance reduction and increases of the installation place and the cost, shock vibration which is generated in the timing of switching between suction and discharge can be suppressed is provided. | 12-29-2011 |
20110260450 | RESIN PIPE JOINT - In a resin pipe joint having a configuration where, by a screw advancement of a union nut caused by screwing an internal thread to an external thread in a state where a tube is externally fitted to an inner cylinder to form a flared portion, a flaring changing region is pressed by a seal pressing portion, a torque varying portion in which projecting portions of a joint body and recess portions of the union nut are fitted to or unfitted from each other by a flexural displacements of the projecting portions in the direction of the axis in accordance with fastening rotation of the union nut from the vicinity of a portion in front of an end of the screw advancement, the screw advancement being caused by pressing of the seal pressing portion against the flaring changing region is configured. | 10-27-2011 |
20110221190 | TUBE JOINT CONSISTING OF RESIN - A resin pipe joint in which, although an economical configuration formed by two components or a joint body and a union nut is employed, both a resistance against pulling and an excellent sealing property can be attained is provided. A resin pipe joint is configured so that the joint has: a synthetic resin-made joint body | 09-15-2011 |
20110210544 | RESINOUS TUBE JOINT - A resin pipe joint in which, although an economical configuration formed by two components or a joint body and a union nut is employed, both a resistance against pulling and an excellent sealing property can be attained is provided. | 09-01-2011 |
20110169261 | Double-pipe Joint - In a double-pipe joint for connecting and coupling a double pipe H consisting of outer and inner pipes h | 07-14-2011 |
20110163535 | Double-pipe Joint - In a double-pipe joint for connecting and coupling a double pipe H consisting of outer and inner pipes h | 07-07-2011 |
20110162338 | YARN - A yarn which is configured by using expanded graphite and PTEE is provided while improving the yarn so that the expanded graphite functioning as a core member is not exposed and it can be simply produced. | 07-07-2011 |
20100264607 | GASKET - A gasket having a concentrically waved metal sheet, i.e., a core member, which has a PTFE sheet or an inorganic sheet of sealing-property layered and bonded on each of its opposite surfaces. The gasket makes it possible to ensure a stable sealing-property for a long period of time with a low to a high fastening-load applied. The metal sheet has valley portions, which were conventionally vacant gaps, and are filled with powdered sealing member to be embedded from the beginning. Therefore, the PTFE sheet or the inorganic sheet at the valley portions of the metal sheet that conventionally could not be compressed with a low fastening-load applied is compressed and even with the low fastening-load applied can secure a fastening surface-pressure over the entire surface. Further, since it is possible to suppress the deformation of the sheet in quantity, which was conventionally large, the PTFE sheet or the inorganic sheet each of low-fluidity are arranged so as not to be broken with a high fastening-load applied and the thinner PTFE sheet or the thinner inorganic sheet can be used. | 10-21-2010 |
20100237570 | GASKET - A gasket having a concentrically waved metal sheet, i.e., a core member, which has a sheet of sealing-property layered and bonded on each of its opposite surfaces. The gasket has an enhanced adaptability of the sheet material and enables the thinner sheet to be used and at the same time makes it possible to ensure a stable sealing-property for a long period of time with a low to a high fastening-load applied. The metal sheet has valley portions, which were conventionally vacant gaps, and are filled with powdered sealing member to be embedded from the beginning. Therefore, the sheet at the valley portions of the metal sheet that conventionally could not be compressed with a low fastening-load applied can be compressed and even with the low fastening-load applied can secure a fastening surface-pressure over the entire surface. Further, since it is possible to suppress the deformation of the sheet in quantity, which was conventionally large, a sheet made of not only the high-fluidity material but also the low-fluidity material can be used as well as the thinner sheet. | 09-23-2010 |
20100159357 | Separator for Fuel Cell and Process for Producing the Same - In order to attain excellent electrical conductivity and molding processability, a fuel cell separator to be produced by performing press molding on a preform in which expanded graphite is used as the main raw material is improved so that the preform is produced by a papermaking method, whereby the characteristics of the mechanical strength, the flexibility, and the gas impermeability are improved, and a light and compact configuration that is preferred in the automobile use or the like can be realized. In a fuel cell separator which is to be produced by performing press molding on a preform | 06-24-2010 |
20100130343 | CERAMICS SLIDING MEMBER FOR USE IN PURE WATER - A ceramics sliding member for use in ultrapure water or pure water of the present invention is made of an SiC sintered body. The SiC sintered body includes β-SiC at a ratio of 20% or more thereto and has an average crystal structure whose aspect ratio is 2 or greater. | 05-27-2010 |
20100000771 | COPPER-CLAD LAMINATE, PRINTED-WIRING BOARDS, MULTILAYER PRINTED-WIRING BOARDS, AND METHOD FOR MANUFACTURING THE SAME - The present invention is to significantly improve copper-foil adhesion strength (copper-foil peel strength) without roughening or blackening a copper-foil surface, and thereby to provide a copper-clad laminate used favorably in a high frequency range. The copper-clad laminate ( | 01-07-2010 |
20090130534 | Separator for fuel cell and process for producing the same - In order to attain excellent electrical conductivity and molding processability, a fuel cell separator to be produced by performing press molding on a preform in which expanded graphite is used as the main raw material is improved so that the preform is produced by a papermaking method, whereby the characteristics of the mechanical strength, the flexibility, and the gas impermeability are improved, and the moldability is made excellent so that a light and compact configuration that is preferred in the automobile use or the like can be realized. In a fuel cell separator which is to be produced by performing press molding on a preform | 05-21-2009 |
20090072536 | Connection Structure of Stack Panel to Fluid Device - A connecting structure for an integration panel and a fluid device in which an excellent sealing property can be held even when substantially no further fastening is performed, and the assembling workability is improved is provided. When an integration panel | 03-19-2009 |
20090066081 | Connecting structure between fluid device and joint - The present invention relates to a connecting structure between a fluid device and a joint in which a peripheral portion of a fluid supply/discharge passage in a fluid device, and a fluid joint are fittingly coupled to each other, whereby a functional component which allows a fluid flowing between the fluid device and the joint to pass through the functional component, and which exerts an action on the fluid is interposed between the peripheral portion and the joint in a state where the functional component is sealed both by the peripheral portion and the joint, and an annular groove and annular projection which are fitted to each other to constitute a sealing portion in a state where the fluid device and the joint are fittingly coupled to each other are formed in the fluid device and the joint, respectively. | 03-12-2009 |
20090000264 | Process and Apparatus for Producing Yarn and Gland Packing - A yarn production process for enabling a yarn formed by filling the interior of a tubular member configured by knitting or braiding a fibrous material with expanded graphite as a base material, to be produced in a state of a high productivity in order to enable the yarn to be actually used in an economical manner. The process of producing a yarn formed by filling the interior of a tubular member configured by knitting or braiding a fibrous material with expanded graphite, the process has: a fine cutting step of successively cutting an expanded graphite sheet which is continuously supplied in a state where the sheet has a predetermined width, to a small width along the width direction of the sheet; and a supplying and filling step of guiding and supplying a strip-like expanded graphite material which is produced by the fine cutting step, into the tubular member to be filled into the tubular member. | 01-01-2009 |