专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20220205541A1 ROTARY JOINT 有权
公开(公告)号：US20220205541A1
公开(公告)日：2022-06-30
申请号：US17611294
申请日：2020-04-17
申请人： NIPPON PILLAR PACKING CO., LTD.
发明人： Masanao ISHIJIMA , Osamu SUZUKI , Yasuyuki OKUNISHI , Shuhei MATSUI
IPC分类号： F16J15/34 , F16L27/087
摘要： Each of mechanical seal devices 7 of a rotary joint 1 includes a first shaft side seal ring 71 and a second shaft side seal ring 72 attached to a shaft body 5, and a first case side seal ring 73 and a second case side seal ring 74 attached to a case body 2. The first shaft side seal ring 71 and the second shaft side seal ring 72 have contact surfaces 71b and 72b axially facing each other and coming into contact with each other, and grooves 421c and 421d for forming a second communication flow passage 42 connecting a second outer flow passage 32 and a second inner flow passage 62 are formed in both the contact surfaces 71b and 72b.

2. 发明授权

US11371500B2 Floating ring type mechanical seal 有权
公开(公告)号：US11371500B2
公开(公告)日：2022-06-28
申请号：US15527239
申请日：2016-02-19
申请人： NIPPON PILLAR PACKING CO., LTD.
发明人： Yuji Sato , Takashi Nishi
IPC分类号： F16J15/34 , F04B53/14 , F04B39/00 , F04B53/00
摘要： 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.

3. 发明申请

US20220155219A1 LIQUID SENSOR 有权
公开(公告)号：US20220155219A1
公开(公告)日：2022-05-19
申请号：US17514092
申请日：2021-10-29
申请人： NIPPON PILLAR PACKING CO., LTD.
发明人： Akira NAKATSU , Kentaro WATANABE
IPC分类号： G01N21/31
摘要： Provided is a liquid sensor that can more accurately detect the state of a liquid. The liquid sensor includes a light emitting element, an optical waveguide, a light receiving element, and a detection circuit. The light receiving element is configured to receive light that was emitted by the light emitting element and passed through the optical waveguide. The detection circuit is configured to detect output of the light receiving element. The optical waveguide includes a first pillar portion that extends straight and a second pillar portion that extends straight. The second pillar portion is provided at a position opposing the first pillar portion. A space for liquid is formed between the first pillar portion and the second pillar portion. The first pillar portion includes a first end surface that faces the light emitting element, and a second end surface that is tilted relative to the first end surface and reflects light toward the second pillar portion. The second pillar portion includes a third end surface that faces the light receiving element, and a fourth end surface that is tilted relative to the third end surface and is configured to reflect light from the second end surface toward the light receiving element.

4. 发明授权

US11306819B2 Gasket-mounting structure 有权
公开(公告)号：US11306819B2
公开(公告)日：2022-04-19
申请号：US16424590
申请日：2019-05-29
申请人： NIPPON PILLAR PACKING CO., LTD.
发明人： Atsushi Nakano , Tomohiro Adachi , Tomoyuki Koike , Kazukiyo Teshima , Motoaki Naruo
IPC分类号： F16J15/02 , F16L23/22
摘要： A gasket includes a first slope at a first axial end. The fluid device includes a second slope that contacts the first slope. The first slope and the second slope have different gradients. The first slope allows at least the first axial end to be deformed along the second slope. The first slope contacts the second slope with a gradient that varies depending on a gradient of the second slope to seal a gap between the first slope and the second slope.

5. 发明授权

US11067175B2 Gasket-mounting structure 有权
公开(公告)号：US11067175B2
公开(公告)日：2021-07-20
申请号：US16424663
申请日：2019-05-29
申请人： NIPPON PILLAR PACKING CO., LTD.
发明人： Tomohiro Adachi , Atsushi Nakano , Tomoyuki Koike , Kazukiyo Teshima , Motoaki Naruo
IPC分类号： F16J15/02 , F16J15/06 , F16L17/073 , F16L23/22 , F16L23/18 , F16J15/10
摘要： A structure allowing a gasket to be mounted on a fluid device is provided. The gasket includes a ring with a first annular slope at a first axial end. The fluid device includes an inner sleeve with a second annular slope and an outer sleeve radially outside the inner sleeve. An outer periphery of the ring includes an annular contact face that contacts the outer sleeve and an annular non-contact face radially separated from the outer sleeve. The first annular slope contacts an outer periphery of the second slope.

6. 发明授权

US10907629B2 Diaphragm pump having an actuator driven by a controller to move a diaphragm or a movable member to bring a motor into a first step-out wherein an origin position is reset 有权
公开(公告)号：US10907629B2
公开(公告)日：2021-02-02
申请号：US16304186
申请日：2017-06-15
申请人： NIPPON PILLAR PACKING CO., LTD.
发明人： Kazukiyo Teshima , Naoto Yamada , Motoaki Naruo
IPC分类号： F04B49/06 , F04B43/04
摘要： A diaphragm pump includes a reciprocable diaphragm, an actuator including a motor, and a control device. The control device resets an origin of the diaphragm in a reciprocating direction, when detecting a step-out of the motor. After resetting the origin, the control device activates the actuator to move the diaphragm to the origin.

7. 发明申请

US20200347936A1 YARN AND GLAND PACKING 审中-公开
公开(公告)号：US20200347936A1
公开(公告)日：2020-11-05
申请号：US16963328
申请日：2019-01-15
申请人： NIPPON PILLAR PACKING CO., LTD.
发明人： Masaru FUJIWARA , Misato IZUKA , Ryoji HAMAGUCHI , Naoyuki SAWAMOTO
IPC分类号： F16J15/22 , D02G3/04 , D02G3/06 , D02G3/36 , D04B1/22 , D04B9/44 , D04B21/20
摘要： A yarn includes elongated pieces of expanded graphite sheet and a tubular member made of knitted or braided fibers. In the tubular member, the pieces of expanded graphite sheet are twisted and packed. The yarns are knitted, or bundles of the yarns are twisted to form a gland packing.

8. 发明申请

US20200047452A1 COATING BASE MATERIAL 审中-公开
公开(公告)号：US20200047452A1
公开(公告)日：2020-02-13
申请号：US16499008
申请日：2018-01-22
申请人： NIPPON PILLAR PACKING CO., LTD.
发明人： Toshihide IIDA , Noboru TAMAKI , Masateru YAMADA
IPC分类号： B32B3/30 , B23K26/354 , B23K26/364
摘要： Provided is a coating base material having a new configuration capable of enhancing the durability of a coating regardless of the adhesion strength of a primer. A coating base material 1 whose surface is subjected to application of a coating includes: a mesh-like valley portion 2 formed on the surface; and a plurality of island portions 3 formed on the surface and surrounded by the valley portion 2. Each island portion 3 has a crater-like recess 4 formed on an upper surface thereof.

9. 发明申请

US20190289713A1 LAMINATED PLATE 审中-公开
公开(公告)号：US20190289713A1
公开(公告)日：2019-09-19
申请号：US16354936
申请日：2019-03-15
申请人： NIPPON PILLAR PACKING CO., LTD.
发明人： Koichi SHIMAUCHI , Yoshitsugu FURUI
IPC分类号： H05K1/03 , H05K1/02 , B32B15/085 , B32B15/20 , C08L27/18 , C08J9/00
摘要： A laminated plate has a metallic conductive layer layered on one surface or each surface of an insulating substrate, the insulating substrate contains a fluorine resin and a polymer of an alkoxysilane, and the fluorine resin is dispersed in the polymer of the alkoxysilane.

10. 发明授权

US10371300B2 Rotary joint 有权
公开(公告)号：US10371300B2
公开(公告)日：2019-08-06
申请号：US15031261
申请日：2014-10-15
申请人： Nippon Pillar Packing Co., Ltd.
发明人： Takato Fukumoto , Yoshinori Kikuyama
IPC分类号： F16L39/06 , F16J15/34
摘要： A mechanical seal which defines an annular space formed between a case body and a shaft body is included. The mechanical seal includes: a first sealing ring having a first seal surface; a second sealing ring having a second seal surface which slidably contacts with the first seal surface; and a plurality of coil springs provided along the first sealing ring in a circumferential direction and configured to apply axial forces to the first sealing ring to press the first seal surface against the second seal surface. The plurality of coil springs are divided into a plurality of groups, and first regions in each of which occurring distortion is increased by the axial forces of the coil springs that belong to the group and second regions in each of which distortion is smaller than that in each first region are present alternately along the circumferential direction in the first sealing ring.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式