Frustoconical Shape Patents (Class 277/381)
  • Patent number: 10634052
    Abstract: The invention relates to a turbine (20) having an impeller (23) arranged in a housing (26). The turbine (20) has an inflow region (21) and an outflow region (22) and a working medium flows through said turbine during operation. The working medium flows into the inflow region (21), along a front side (23a) formed on the impeller (23) and subsequently out of the outflow region (22). There is a pressure drop at the front side (23a) between the inflow region (21) and the outflow region (22). A pressure distributer (9) is arranged on the rear side (23b) of the impeller (23), opposite the front side (23a). The pressure distributer (9) comprises a slide ring (31), which cooperates with the rear side (23b) of the impeller (23) and thereby forms a vapour-lubricated throttle. A first flow path (51) runs through the throttle, wherein the throttle hydraulically divides the rear side (23b) into a first region (231) and a second region (232).
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: April 28, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Dietmar Uhlmann, Giuseppe Di Giandomenico, Luiz-Alexandre Colodel
  • Patent number: 10381856
    Abstract: A wireless charging system for a power tool includes a charging module, docking frame, and tool holder. The charging module has a charging surface and an inductive charging device for charging a power tool resting on the charging surface, and is mounted in the docking frame, which is mounted in a mounting interface of the tool holder such that the charging surface is at an angle. The tool holder further includes a holding portion extending from a downward portion of the mounting interface such that the holding portion transversely supports the power tool. A soft insert structure received in the holding portion forms an interference fit with the power tool and applies a load to the power tool toward the charging surface that urges the power tool to an optimal location for charging, relative to the inductive charging device.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: August 13, 2019
    Assignees: Robert Bosch Tool Corporation, Robert Bosch GmbH
    Inventors: Yizhuo Zhang, Marco Laubach, Steve Cole
  • Patent number: 10274114
    Abstract: A torque retention arrangement for a flange bolt connector for use with pipe. The torque retention arrangement a carrier body and a plurality of springs. The carrier body can include a plurality of spring holes equi-spaced around a circumference. A plurality of springs in a vertical stack can be mounted in each of the plurality of spring holes in the carrier. Each spring is in a convex orientation in a pre-torque condition and is in a planar orientation in a post-torque condition.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: April 30, 2019
    Assignee: Barnes Group Inc.
    Inventor: John R. Otto
  • Patent number: 9822883
    Abstract: A load ring for a seal assembly includes an inner axial surface, an outer axial surface, a first frustoconical surface, a second frustoconical surface, and a rib. The inner and outer axial surfaces are cylindrical and extend along a longitudinal axis. The outer axial surface is in outward radial relationship to the inner axial surface along a radial plane which is perpendicular to the longitudinal axis. The first and second frustoconical surfaces are annular and extend radially between the inner axial surface and the outer axial surface. The second frustoconical surface is in spaced relationship with respect to the first frustoconical surface along the longitudinal axis. The rib projects radially inwardly from the inner axial surface.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: November 21, 2017
    Assignee: Caterpillar Inc.
    Inventors: Darren B. Antoine, Sunil I. Mathew, Pradeep Chapagain, Brian S. Skauge
  • Patent number: 9574665
    Abstract: The invention relates to a slide ring seal, and in particular a running gear seal, at least comprising an angled slide ring and/or counter ring, the radial leg of which forms a sliding region, and the axial leg of which forms a seating for a sealing element, which radially outside of the sliding region, is provided with a projection that at least partially overlaps the radial leg, forming a secondary seal, wherein at least in the region of the radial leg, the projection is provided with a profile, which is supported on the outer circumferential surface of the radial leg, forming anti-contamination lips in the installed state of the slide ring seal, and in particular running gear seal, that profile being supported on the outer circumferential surface of the radial leg when viewed in the axial direction.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: February 21, 2017
    Assignee: FEDERAL-MOGUL BURSCHEID GMBH
    Inventor: Andreas Dengler
  • Patent number: 9409612
    Abstract: A seal assembly can be incorporated into a track joint assembly of an undercarriage of a track-type machine. The track joint can have a first member pivotable about a rotational axis relative to a second member thereof. The first member includes a seal member engagement surface defining, at least in part, an axially-extending seal cavity about the rotational axis and within which the seal assembly is disposed. The seal assembly can include a thrust ring and a seal member mounted to the thrust ring. The seal member includes a first member engagement surface, a second member engagement surface, a frusto-conical inner relief surface, a thrust ring engagement surface, and an outer relief surface.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: August 9, 2016
    Assignee: Caterpillar Inc.
    Inventors: Sunil Mathew, Mark Kiesel, Pradeep Chapagain
  • Patent number: 9004493
    Abstract: A sealing arrangement used to create a seal between a first part of a chain and a second part of the chain, wherein the second part can at least be pivoted in relation to the first part, includes a sealing ring with an annular sealing lip for sealing a lubricant area between parts which can be pivoted towards each other, and an elastic ring which is adapted to be fixed to one of the parts and which is adapted to exert pressure in the sealing ring. In addition, a supporting ring is arranged between the sealing ring and the elastic ring.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: April 14, 2015
    Assignee: AB SKF
    Inventors: Hans-Joachim Vom Stein, Wolfgang Korte, Marcus Stojek
  • Patent number: 8753079
    Abstract: A mechanical seal is disclosed having a rotatable sealing face and a stationary sealing face that are in opposed relation and arranged to be urged, into contact to form a seal. One of the sealing faces is mounted on a support assembly that includes a biasing device operative to move that sealing face into contact with the other sealing face. In one form of the invention, the biasing device includes one or more resilient members that in use are deformed to provide the biasing force. In a second form of the invention, the support assembly forms part of a fluid barrier of the seal and the biasing device is fluid impervious and forms part of the barrier. In a third form of the invention, the biasing device is exposed to fluid pressure in the chamber and the biasing force increases on increasing the fluid pressure in the chamber.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: June 17, 2014
    Assignee: Vulco S.A.
    Inventors: Ricardo Abarca Melo, Rodrigo Guzman Castro, Osvaldo Quiroz Venegas
  • Patent number: 8485926
    Abstract: A sealing arrangement used to create a seal between a first (12) part of a chain and a second (14) part of a chain, wherein said second part can at least be pivoted in relation to the first part, exhibiting the following features: a sealing ring (40) with an annular sealing lip (42) for sealing a lubricant area between parts which can be pivoted towards each other, an elastic ring (60) which can be fixed to one of the parts and which can be used to exert pressure on the sealing ring; in addition to a supporting ring (50) which is arranged between the sealing ring and the elastic ring; and link of a chain provided with said sealing arrangement.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: July 16, 2013
    Assignee: AB SKF
    Inventors: Hans-Joachim Vom Stein, Wolfgang Korte, Marcus Stojek
  • Patent number: 8226088
    Abstract: To prevent premature wear and damage of elastic rings caused by fine grained soil, floating rings 22, 24 are supported by corresponding housings 20, 21 through associated elastic rings 23, 25. The elasticity of the elastic rings causes the floating rings 22, 24 to contact each other. When the housings rotate relative to each other, the floating rings 22, 24 slide with respect to each other. An elastic layer 28, 29 is arranged on a contact surface of a portion of a contact surface of each floating ring 22, 24 or a contact surface of each housing 20, 21 with respect to the corresponding elastic ring located closer to an opposing portion 22a, 24a of the floating ring 22, 24.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: July 24, 2012
    Assignee: Komatsu, Ltd.
    Inventor: Yukio Kometani
  • Patent number: 8113597
    Abstract: A track joint seal system comprises a pin (43) having, at each end, a first track link (41) rotatably coupled to the pin by means of interposition of a bushing (49) and an end element (42) coupled to the end of the pin (43); the end element (42) comprises an annular seat (57) bearing, housed, a seal group (56) cooperating with the bushing (49) to make the sealing of the joint; the bushing (49) is provided at the end with an annular head seat (58), provided to house a bushing insert (53) provided with an abutment surface (48) destined to be in contact with a seal portion (47) of the seal group (56).
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: February 14, 2012
    Assignee: Berco S.p.A.
    Inventor: Francesco Grenzi
  • Publication number: 20090121442
    Abstract: To provide: a method of manufacturing a ring-shaped member that can efficiently manufacture a stronger backup ring that reinforces a seal member disposed in a pressure introduction chamber of a fuel injection valve; the backup ring; and a seal structure for a fuel injection valve disposed with the backup ring.
    Type: Application
    Filed: November 27, 2006
    Publication date: May 14, 2009
    Inventors: Yasufumi Uozumi, Eiji Mochizuki
  • Patent number: 7108418
    Abstract: An auger mixer for mixing a concrete mix includes an elongated mixer housing having a mixing chamber for mixing the concrete mix therein. A mixing auger is rotatably mounted within the mixing chamber. A bearing assembly mounts one end of the auger shaft to the mixer housing. A seal assembly comprising a stationary seal remains stationary relative to the mixer housing and a rotating seal rotates with the auger. The stationary seal and the rotating seal contact one another to create a seal preventing the concrete mix from exiting the mixing chamber and moving toward the bearing assembly.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: September 19, 2006
    Assignee: Cemen Tech, Inc.
    Inventors: David M. Crall, Max W. Gilmore, Leland W. Goode, Gary L. Ruble, Larry G. Lepper
  • Patent number: 6220601
    Abstract: A mechanical face seal device includes a bellows assembly comprising a bellows member of resilient material having axially spaced mounting portions interconnected by an intermediate foldable portion, one of said mounting portions being adapted to be fixed relative to a rotary component whilst the other is in torque transferring relationship with a rotary annular seal member, and a biasing means for diasing the rotary annular seal member against the stationary annular seal member. An essentially stiff support member having a predetermined radial dimension is provided for axially supporting the rotary annular seal member and is itself supported by the bellows member.
    Type: Grant
    Filed: January 24, 2000
    Date of Patent: April 24, 2001
    Assignee: Feodor Burgmann Dichtungswerke GmbH & Co.
    Inventors: Thomas Keller, Ulrich Reinfrank, Wolfgang Ries, Reinhard Svejkovsky, Robert Woppowa, Dieter Ziegenbein
  • Patent number: 6053506
    Abstract: A slide ring seal assembly includes a slide ring having a radial slide face and a circumferential conical surface; a support ring, made of an elastic material, surrounding the slide ring and having a circumferential conical surface; an annular elastic rolling body disposed between the slide ring and the support ring and being in engagement with the circumferential conical surfaces thereof; and an annular reinforcing body embedded in the support ring and having a plurality of radially, axially and circumferentially extending channels distributed over the circumference of the reinforcing body.
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: April 25, 2000
    Assignee: AE Goetze GmbH
    Inventor: Hans-Henning Zutz