Allows Rolling Or Folding Patents (Class 277/604)
  • Patent number: 10792715
    Abstract: In a gear spindle, outer cylinder gear sections (11) are each integrally formed on an inner peripheral surface of a spindle outer cylinder and inner cylinder gear sections (14) are each integrally formed on an outer peripheral surface of a spindle inner cylinder (13). An oil seal (27) that seals in the lubricating oil (20) for each of the aforementioned gear sections includes, a seal body (29) having a channel-shaped cross section and interposed in the peripheral gap between the inner peripheral surface of the spindle outer cylinder and the outer peripheral surface of the spindle inner cylinder (13), and a seal mounting member (30) that includes a band, a spring, or the like that tightens and fixes the seal body to the outer peripheral surface of the spindle inner cylinder (13) to allow expansion of the seal body in the axial direction in the aforementioned peripheral gap.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: October 6, 2020
    Assignee: PRIMETALS TECHNOLOGIES JAPAN, LTD.
    Inventor: Kenji Yamamoto
  • Patent number: 10734752
    Abstract: A grommet 2 for sealing a cable 4 in a cable bushing 3. The grommet comprises a sleeve body 6, wherein the sleeve body 6 has an inner sealing lip 14 for sealing the cable 4 in the sleeve body 6 and an outer sealing lip 12 for sealing the sleeve body 6 in the cable bushing 3, wherein the sleeve body 6 comprises at least two body parts 7, 7a, 7b, wherein the sleeve body 6 has a detached state and an aligned state, whereby in the detached state the at least two body parts 7, 7a, 7b are detached to insert the cable 4, whereby in the aligned state the at least two body parts 7, 7a, 7b are aligned to form the inner sealing lip 14 and the outer sealing lip 12.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: August 4, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Francisco Homem, Berry van Hoof, Jakub Dzierzak
  • Patent number: 10575558
    Abstract: The present disclosure relates to an aerosol delivery device. The aerosol delivery device may include a first outer body, a second outer body, and a coupler defining a coupler inlet positioned between, and welded to, the first outer body and the second outer body. A sealing member may be engaged with the coupler, the sealing member including one or more penetrable portions, wherein the one or more penetrable portions of the sealing member are configured to be pierced with one or more electrical connectors such that the one or more electrical connectors extend through the sealing member from the coupler and seal against the sealing member. Related assembly methods are also provided.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: March 3, 2020
    Assignee: RAI Strategic Holdings, Inc.
    Inventors: Alfred Charles Bless, Michael Andrew Liberti, Timothy Brian Nestor, Frederic Philippe Ampolini, Michael Ryan Galloway
  • Patent number: 10408650
    Abstract: A system, method, and apparatus for attenuating acoustic back-coupling in a ultrasonic meter transducer that includes a gasket band comprising a loop of a material, a first gasket ring integrated in the gasket band configured to match a diameter of a first bracket hole, and a second gasket ring integrated in the gasket band configured to match a diameter of a second bracket hole wherein the loop of material comprises a material that provides both environmental sealing and acoustic attenuation.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: September 10, 2019
    Assignee: Honeywell International Inc.
    Inventors: Bin Sai, Fabian Weber
  • Patent number: 10125904
    Abstract: A sealing member or gasket for sealing a space between two adjacent surfaces, the sealing member having at least one non-helical circumferential extension or ridge configured for size-on-size or press fit engagement with a corresponding recess in at least one of the surfaces being sealed. The sealing member can be formed by molding followed by insertion between the two adjacent surfaces, or by positioning the surfaces adjacent one another and then injecting or pouring the sealing member material into the space and allowing it to solidify in place.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: November 13, 2018
    Assignee: Evolution Engineering Inc.
    Inventors: Hasan Alper Hepguvendik, Aaron William Logan, Justin Christopher Logan, Gavin Gaw-Wae Lee, Luke Anthony Stack, Mojtaba Kazemi Miraki, Patrick Robert Derkacz, Daniel William Ahmoye
  • Patent number: 9637928
    Abstract: A sealing assembly for fluidly sealing a roof drain within a conductor pipe has a sealing element and an expansion ring. The sealing element defines an inner wall with a portion that transitions inward and may be disposed on a portion of the roof drain. The expansion ring is disposed within the inner wall. Reciprocation of the of the expansion ring along the inward transitioning portion of the inner wall causes the sealing element to expand outwardly to a sealed position with the sealing element outer wall abutting the conductor pipe inner wall in a fluid tight seal. Opposite reciprocation of the ring allows the sealing element to contract and release from the conductor pipe.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: May 2, 2017
    Assignee: Handy & Harman
    Inventors: Andrew J. Liptak, Peter J. Shadwell
  • Patent number: 9587744
    Abstract: The sealing material is configured to be installed in a dovetail groove. The sealing material has a seal cross-section including a main body arranged on a bottom surface of the dovetail groove, and a lip portion which is bent from an end of the main body and extends toward an outside of the dovetail groove. The seal cross-section has such a V shape that each of the main body and the lip portion extends linearly from a bending position between the main body and the lip portion. A width B1 of the main body in a direction orthogonal to a direction in which the main body extends linearly is not more than a width B2 of the lip portion in a direction orthogonal to a direction in which the lip portion extends linearly. This configuration provides the sealing material which can be used under an extremely low load.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: March 7, 2017
    Assignee: NIPPON VALQUA INDUSTRIES, LTD.
    Inventors: Nobuhiro Yoshida, Masamichi Iwaki
  • Patent number: 8967245
    Abstract: A method and assembly for reducing a radial gap between radially proximate components including a setting member having a first dimension that partially defines the radial gap, the setting member including a circumferential groove extending radially from the first dimension, and a first toroid having a second dimension, the setting member operatively arranged to engage with the first toroid, wherein increasingly engaging the setting member with the first toroid enables a boundary dimension of the assembly to be extended toward the radial gap for reducing the radial gap, the circumferential groove operatively arranged to catch the first toroid when the setting member is fully engaged with the first toroid.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: March 3, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Amy L. Farrar, Edward T. Wood, Gregory C. Badke, Robert O. Castillo, Anthony P. Foster
  • Patent number: 8079599
    Abstract: A tank seal for use in cast concrete walls has a generally cylindrical main body portion with a stepped outside wall having first axially-extending portion, a second axially-extending portion having an outermost diameter less than an outermost diameter of the first axially-extending portion, and a radial ledge or step separating the first and second axially-extending portions. A wiper blade portion extends radially inwardly of the stepped outside wall, from an end of the second axially-extending portion opposite the radial ledge, terminating at a third end. A circular membrane or web extends across the third end, including at least one annular groove therein to facilitate removal of at least one circular portion of the web. The radial ledge collapses and the first axially-extending portion puckers in response to compressive force exerted on the tank seal in an axial direction, reducing the axial length of the tank seal.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: December 20, 2011
    Assignee: Tug-Tite, Inc.
    Inventor: Theodore W. Meyers
  • Patent number: 7827665
    Abstract: A gasket and mandrel assembly, including a gasket having an annular main body portion with an anchor flange and a pipe sealing portion. The gasket is foldable between a folded position in which the pipe sealing portion is disposed substantially within the main body portion and an unfolded position in which the pipe sealing portion extends outwardly of the main body portion along its longitudinal axis. A pair of mandrels are respectively fitted on opposite sides of the folded gasket to enclose most of the gasket for casting the gasket within a wall in a concrete structure. At least one of the mandrels includes an annular outer surface aligned parallel or substantially parallel with the longitudinal axis of the gasket.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: November 9, 2010
    Assignee: Press-Seal Gasket Corporation
    Inventors: Andrew J. Happel, Timothy A. Andrews, Michael R. Miller, James W. Skinner
  • Patent number: 7810816
    Abstract: A seal is inserted into a space to be sealed. First and second end portions of the seal are engaged with first and second end surfaces of the space. The seal is compressed between the first and second end surfaces. The compression strains the seal. The strain includes the rotation of a cross-section of the seal so as to bias the seal into engagement with a surface forming one of an inboard surface and an outboard surface of the space.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: October 12, 2010
    Inventor: Horace P. Halling
  • Patent number: 7789397
    Abstract: An annular, axial seal having a linear section having opposite ends, a first side in a first plane and an opposite second side in a second plane wherein the second plane is parallel to the first plane and a curled section contiguous with one of the ends of the linear section. The curled section curls in a first direction to a distal end. The curled section curls in the first direction in accordance with a predetermined radius and predetermined distance such that the distal end of the curled section is located directly across from the first side of the linear section. The linear section and the curled section provide a generally “J” shaped cross-section. The annular, axial seal also has a tip portion contiguous with the opposite end of the linear section such that the linear section is between the tip portion and the curled section. The tip portion is slightly curved with respect to the linear section such that the tip portion breaks the first plane.
    Type: Grant
    Filed: April 9, 2007
    Date of Patent: September 7, 2010
    Assignee: American Seal and Engineering Company, Inc.
    Inventor: Horace P. Halling
  • Patent number: 7699320
    Abstract: A seal device includes a first seal portion, a second seal portion, and a joint base, wherein the first seal portion has a first elastic portion with a flat side surface at one side of a first bight portion and a second elastic portion at the other side of the first bight portion. The second seal portion has a first symmetrical elastic portion with a flat side surface at one side of a second bight portion and a second symmetrical elastic portion at the other side of the second bight portion. A first seal face is disposed on a first outmost circumferential surface of the first elastic portion, and a second seal face is disposed on a second outmost circumferential surface of the first symmetrical elastic portion.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: April 20, 2010
    Assignee: Eagle Engineering Aerospace Co., Ltd.
    Inventors: Tetsuya Iguchi, Jun Hiromatsu
  • Publication number: 20100084825
    Abstract: A textile gasket and method of construction thereof for establishing a seal between mating members in a high temperature application is provided. The gasket has a knit, tubular body constructed at least in part of non-metallic, heat-resistant yarns. The body extends between opposite ends with at least one of the ends being rolled toward the other end to form a circumferentially extending rolled portion of a predetermined diameter for receipt between the mating members.
    Type: Application
    Filed: August 12, 2009
    Publication date: April 8, 2010
    Inventors: Cassie Malloy, Zhong Huai Zhang, Ming-Ming Chen, Lucia Della Putta, Gerard Mirmand, Linwood Ludy
  • Patent number: 7401791
    Abstract: A pipe gasket includes a toroidal gasket body and projections extending away from a peripheral surface of the gasket body. The gasket body is configured to allow the gasket body to roll along a spigot end of a first pipe as the spigot end is received inside a bell end of a second pipe. The projections each include a first surface and a second surface. The first surface is configured to facilitate rotation of the gasket body in a first rotational direction. The second surface is configured to inhibit rotation of the gasket body in a second, opposite, rotational direction.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: July 22, 2008
    Assignee: Vertex, Inc.
    Inventors: William C. Andrick, Michael J. Ferrara, Jr.
  • Publication number: 20080128998
    Abstract: A sealing element for a leadthrough (10) for passing of conduits (40) through constructional components (50), has a flexible tubular body (14) rotatable along its longitudinal axis (L) that serves as a rotational axis, and on at least first axial end (12) of which, a securing element is provided.
    Type: Application
    Filed: November 29, 2007
    Publication date: June 5, 2008
    Inventors: Manfred Klein, Mario Paetow
  • Patent number: 7331582
    Abstract: An annular gasket for affecting a watertight seal between two sections of corrugated pipe. The gasket comprises a seating portion dimensioned to fit within an annular recess in one of the mated sections of corrugated pipe, and a sealing portion integrally molded with the seating portion. The sealing portion includes a first shoulder portion, a second shoulder portion, and an arcuate surface extending between the first and second shoulder portions. The mass of the seating portion is less than the mass of the sealing portion.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: February 19, 2008
    Assignee: Advanced Drainage Systems, Inc.
    Inventors: William V. Shaffer, William C. Andrick
  • Patent number: 7201381
    Abstract: The present invention is directed to a resilient, annular, metallic seal member having a generally “j” shaped cross-section. The annular, metallic seal member includes a first end portion having a first distal end, a generally curled second end portion that extends to a second distal end, and a central body portion between and contiguous with the first and second end portions. The annular, metallic seal member has a first side and an opposite second side. The second end portion curls in a first direction in accordance with a predetermined radius such that the second distal end is located across from the first side of the annular, metallic seal member and the first and second distal ends do not face each other.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: April 10, 2007
    Assignee: American Seal and Engineering Company, Inc.
    Inventor: Horace P. Halling
  • Patent number: 7182372
    Abstract: An annular beveled insert for enhancing the insertion of a plain end of a pipe into a mating belled end of a pipe, the insert including an annular main body portion having a substantially flat surface and a beveled opposed surface. The annular main body portion has inner and outer diameters approximately equal to inner and outer diameters, respectively, of the plain end of the pipe. An outwardly directed flange extends from the annular main body portion around a periphery and has an outer diameter greater than the outer diameter of the plain end of the pipe. The flange is sufficiently flexible so that it bends into an angle of approximately ninety degrees with the flat surface of the annular main body portion and aids the main body portion in masking the plain end of the pipe as it passes through the annular gasket.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: February 27, 2007
    Inventor: Steven K. Wolff
  • Patent number: 7086652
    Abstract: A closed end of a one piece flexible elastomeric seal is mounted in one end of a tubular liquid concrete tight frame that is mounted on a removable door of one wall of a concrete wall mold, the other open end of the flexible seal is in liquid concrete tight sealing contact with the other wall of the concrete wall mold.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: August 8, 2006
    Assignee: The Peter Gavin Spray Trust
    Inventor: Norman W. Gavin
  • Patent number: 7028972
    Abstract: A gasket and mandrel assembly, including a gasket having an annular main body portion with an anchor flange and a pipe sealing portion. The gasket is foldable between a folded position in which the pipe sealing portion is disposed substantially within the main body portion and an unfolded position in which the pipe sealing portion extends outwardly of the main body portion along its longitudinal axis. A pair of mandrels are respectively fitted on opposite sides of the folded gasket to enclose most of the gasket for casting the gasket within a wall in a concrete structure. At least one of the mandrels includes an annular outer surface aligned parallel or substantially parallel with the longitudinal axis of the gasket.
    Type: Grant
    Filed: July 8, 2004
    Date of Patent: April 18, 2006
    Assignee: Press-Seal Gasket Corporation
    Inventors: Michael R. Miller, James W. Skinner
  • Patent number: 6983940
    Abstract: The present invention is directed to a resilient, annular, metallic seal member having a generally “j” shaped cross-section. The annular, metallic seal member includes a first end portion having a first distal end, a generally curled second end portion that extends to a second distal end, and a central body portion between and contiguous with the first and second end portions. The annular, metallic seal member has a first side and an opposite second side. The second end portion curls in a first direction in accordance with a predetermined radius such that the second distal end is located across from the first side of the annular, metallic seal member and the first and second distal ends do not face each other.
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: January 10, 2006
    Assignee: American Seal And Engineering Company, Inc.
    Inventor: Horace P. Halling
  • Patent number: 6948718
    Abstract: An annular gasket for affecting a watertight seal between two sections of corrugated pipe. The gasket comprises a seating portion dimensioned to fit within an annular recess in one of the mated sections of corrugated pipe, and a sealing portion integrally molded with the seating portion. The sealing portion includes a first shoulder portion, a second shoulder portion, and an arcuate surface extending between the first and second shoulder portions. The mass of the seating portion is less than the mass of the sealing portion.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: September 27, 2005
    Assignee: Advanced Drainage Systems, Inc.
    Inventors: William V. Shaffer, William C. Andrick
  • Patent number: 6769698
    Abstract: The object of this invention is to provide a structure of seal ring, and seal structure using the seal ring for flange joints of composite tanks and pipes, that prevents seal surface variations due to differences in thermal contraction between the seal ring and the tank/the flange joint, etc., that improves the resilience of the seal, and that prevents gas leakage due to poor sealing, in order to achieve the stable sealing. The seal ring fits into a ring groove formed in a sealed unit such as a tank unit or a flange joint to provide a tight seal to contain fluids. The heart-shaped seal ring has three curved surface areas that smoothly flow together, comprised of a first curved seal surface which contacts the formed surface of the ring groove, a second curved seal surface which contacts the seal surface of a second member (e.g. manhole cover), and a projecting curved surface on the opposite side.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: August 3, 2004
    Assignees: Mitsubishi Heavy Industries, Ltd., Eagle Engineering Aerospace Co., Ltd.
    Inventors: Takanobu Kamiya, Makoto Watanabe, Tetsuya Iguchi
  • Patent number: 6719294
    Abstract: A gasket assembly includes an upper housing forming a seal with the outlet of a bathroom fixture, and a lower housing forming a seal with a sewer pipe. The lower housing has an outer surface extending along an axis and a toroidal gasket disposed in sealing relationship with the outer surface and the sewer pipe. To accommodate larger sewer pipes, the outer surface can be formed on an adapter and a second gasket provided to form a seal with the adapter. In an associated method for mounting the gasket assembly, the gasket is rolled axially in a continuous sealing relationship with the lower housing.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: April 13, 2004
    Assignee: Fluidmaster, Inc.
    Inventors: Jack T. Nguyen, Christopher A. Coppock, Steven E. Maple, Troy A. Bell, Kevin J. Doverspike
  • Patent number: 6719302
    Abstract: A gasket for a pipe joint includes an annular gasket body which is symmetrical around an axial centerline and is therefore insensitive to axial orientation. The gasket is formed of a resilient material and includes a base adapted to sealingly engage an annular groove formed in one of the pipe segments to be joined. First and second protrusions run along the length of the gasket body and extend radially therefrom. The first and second projections are spaced apart symmetrically about the centerline. An annular bore, bisected by the center line, extends within the interior of the gasket body, and comprises a central region bridging first and second transversely spaced apart lobes. It is particularly suited for sealing an annular space in a bell-and-spigot pipe joint and provides an increased surface contact area to compensate for defects in the sealing surfaces of the pipes.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: April 13, 2004
    Assignee: Vertex, Inc.
    Inventor: William C. Andrick
  • Patent number: 6702299
    Abstract: A closure includes an object to be closed. The object having an opening hole, a plug member to be inserted into the opening hole, and a seal member disposed on the plug member. The seal member is formed of a ring-shaped elastic member and contacts the object to be closed and the plug member to close the object. An insertion portion of the plug member is smaller than theopening hole. An insertion portion of the plug member is provided with a seal member-receiving groove and is smaller than the opening hole. The seal member-receiving groove is provided with a seal member-seating portion, which has an outer surface with a predetermined diameter smaller than that of the opening hole and larger than that of a bottom of the seal member-receiving groove. The seal member has a cross-sectional shape, which can be fitted into the seal member-receiving groove of the plug member. The seal member has an outer diameter larger than the opening hole in a mounting state into the seal member-receiving groove.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: March 9, 2004
    Assignee: Daiden Co., Ltd.
    Inventors: Shuichi Yamaguchi, Hikaru Ibi, Hirotoshi Tateishi
  • Patent number: 6691975
    Abstract: A closed end of a one piece flexible elastomeric seal is mounted in one end of a tubular liquid concrete tight frame that is mounted on a removable door of one wall of a concrete wall mold, the other open end of the flexible seal is in liquid concrete tight sealing contact with the other wall of the concrete wall mold.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: February 17, 2004
    Inventor: Norman W. Gavin
  • Patent number: 6688608
    Abstract: The improved ring seal includes an annularly shaped body element having a radial inner surface, a radial outer surface, a first axial end surface and a second axial end surface. The ring seal also includes a plurality of bores which project radially inward from the radial outer surface toward the radial inner surface. The projection of the bores through the ring seal form sidewalls which project between the axial end surfaces and radially from the ring seal's radial outer surface towards the ring seal's radial inner surface. The addition of the bores to the ring seal increases the ring seal's deformation during sealing compression, while the sidewalls provide elastic recovery of the ring seal during repeated cycles of compression and decompression. The ring seal also includes a circular ridge axially projecting from both axial end surfaces. The axial ridges separate the end surfaces into inner axial end surfaces and outer axial end surfaces.
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: February 10, 2004
    Inventor: Michael Doyle
  • Publication number: 20030218304
    Abstract: A gasket having an intermediate portion provided with convolutions which are capable of expanding/contracting enabling an anchoring end to be cast in a curve and a pipe receiving end to be maintained lying in a plane, and a method for forming and using the gasket including the employment of a mandrel assembly to conform the anchoring end to the curvature of the cast member.
    Type: Application
    Filed: May 23, 2003
    Publication date: November 27, 2003
    Applicant: Poly-Tech Products, Inc.
    Inventors: James A. Westhoff, James A. Kelly
  • Patent number: 6568691
    Abstract: A molded annular gasket is placed upon a mandrel for embedment of its annular-shaped embedment portion within an opening in a cast member. After the cast member has been cured and removed from a molding assembly, including the mandrel, the pipe attachment end of the gasket is pulled through the center of the gasket so that its pipe attachment end extends beyond the embedment end, to facilitate the placement of a take-down clamp which secures the pipe attachment end to a pipe inserted there through thereby providing a fluid-tight joint. The mandrel is preferably a one-piece member. The gasket may have a cylindrical or conical-shaped intermediate portion provided with spaced-apart annular projections at the pipe attachment end, between which the takedown clamp is arranged.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: May 27, 2003
    Assignee: Poly-Tec Products, Inc.
    Inventors: James A. Westhoff, James A. Kelly
  • Patent number: 6460860
    Abstract: A tubular wall sealed at a first end by an integrally molded annular wall, forming a cap, is cast in the concrete wall of a low pressure vessel, forming a sealed cavity in the concrete. One end of a rubber tubular gland wrapped sealingly around the outside of the second end of the tubular wall is sealed in the concrete by a radially extending cast-in anchor. The diameter of the other end of the rubber tube is smaller than the diameter of the tubular wall of the cap.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: October 8, 2002
    Inventor: Norman W. Gavin
  • Patent number: 6457718
    Abstract: A pipe gasket and a method of forming a pipe joint between a metal spigot pipe and metal belled pipe. The gasket has three regions to facilitate a seal. A seal region forms the primary seal within the groove of the belled pipe. A sleeve region extending from the seal region forms a sleeve around the end of an inserted spigot pipe to protect the pipe from contact with fluids flowing there through. A retainer region coupled to the sleeve region covers the end of the spigot pipe and also acts as a stop to prevent over-insertion of the spigot pipe into the belled pipe. The three regions cooperate to form a sleeve around the spigot pipe end and to prevent over-insertion of the spigot pipe into the belled pipe.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: October 1, 2002
    Assignee: S & B Technical Products, Inc.
    Inventor: Guido Quesada
  • Publication number: 20020074740
    Abstract: A metallic sealing element comprises a generally tubular body having first and second opposed ends and a center section which is located between the first and second ends. In use the sealing element is compressible to bring the first and second ends towards one another to cause a center section to bulge transversely and sealingly engage a co-operating sealing surface.
    Type: Application
    Filed: November 29, 2001
    Publication date: June 20, 2002
    Inventor: Roberto L. Quoiani
  • Patent number: 6378915
    Abstract: A pipe coupling includes a body member (10) formed with a bore (11) for receiving one end of a pipe (P) to be coupled; a sealing ring (20) and a compression sleeve (30) receivable within the bore (11); a radially-deformable gripping ring (40) having one end abuttable against the compression sleeve (30), a securing nut (50) threaded on the body member (10) and engageable with the gripping ring (40) to move the gripping ring (40) axially and to effect a sealing action via the compression sleeve (30) and the sealing ring (20), and also to compress the gripping ring (40) radially to effect a gripping action of the pipe (P) received in the bore (11); and an axially-extending limit element (45) between the gripping ring (40) and the body member (10) effective to cause the nut (50), when tightened; (a) in an initial stage, to move the gripping ring (40) and the compression sleeve (30) until the limit element engages (45) prevents further axial movement of the gripping ring (40); and (b) in a final stage, to radially
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: April 30, 2002
    Assignee: Plasson Ltd.
    Inventor: Oded Katz
  • Patent number: 6371530
    Abstract: A tube joint comprises: a pushing ring provided at its outer periphery with a projection and fitted to an outer periphery of one end of a joint tube; a tube or a joint body provided at is side opposed to the pushing ring with a projection opposed to the projection of the pushing ring, the tube or the joint body having a receiving portion which is widened toward the pushing ring and the tube or the joint body being fitted to an outer periphery of the joint tube with a peripheral gap left therebetween; a fastening tool capable of moving the pushing ring in a direction of the tube or the joint body; a packing provided between inner and outer side of the tube or the joint body and the joint tube, and fitted through the receiving portion by its own resilient deformation by operation of the fastening tool; and a spacer inserted between the pushing ring and the tube or the joint body to limit a distance between the pushing ring and the tube or the joint body to a constant value.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: April 16, 2002
    Assignee: Waterworks Technology Development Organization Co., Ltd.
    Inventors: Taichi Sato, Koichi Shirakawa, Kosuke Sakai
  • Patent number: 6357760
    Abstract: The improved ring seal includes an annularly shaped body element having a radial inner surface, a radial outer surface, a first axial end surface and a second axial end surface. The ring seal also includes a plurality of bores which project radially inward from the radial outer surface toward the radial inner surface. The projection of the bores through the ring seal form sidewalls which project between the axial end surfaces and radially from the ring seal's radial outer surface towards the ring seal's radial inner surface. The addition of the bores to the ring seal increases the ring seal's deformation during sealing compression, while the sidewalls provide elastic recovery of the ring seal during repeated cycles of compression and decompression. The ring seal also includes a circular ridge axially projecting from both axial end surfaces. The axial ridges separate the end surfaces into inner axial end surfaces and outer axial end surfaces.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: March 19, 2002
    Inventor: Michael Doyle
  • Patent number: 6325389
    Abstract: A unique fluid pipe/duct coupling/fitting having flexible arcuate pliable and deformable gaskets such as an O-ring providing the seal between an OD pipe and the ID coupling or fitting and an uncouple retard structure for promoting the insertion of the tubular fluid connector from backing away or withdrawing from the fluid pipe into which the ID coupling is being inserted. The uncoupling retarder structure includes a first starting groove and a last or final resting groove both disposed on the tubular wall of the fluid connector pipe, the first beginning and last final resting groove being disposed and having a predetermined longitudinal distance along the length of the pipe wall between them.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: December 4, 2001
    Inventor: Amir Sharify
  • Publication number: 20010045710
    Abstract: A gasket assembly includes an upper housing forming a seal with the outlet of a bathroom fixture, and a lower housing forming a seal with a sewer pipe. The lower housing has an outer surface extending along an axis and a toroidal gasket disposed in sealing relationship with the outer surface and the sewer pipe. To accommodate larger sewer pipes, the outer surface can be formed on an adapter and a second gasket provided to form a seal with the adapter. In an associated method for mounting the gasket assembly, the gasket is rolled axially in a continuous sealing relationship with the lower housing.
    Type: Application
    Filed: February 2, 2001
    Publication date: November 29, 2001
    Inventors: Jack T. Nguyen, Christopher A. Coppock, Steven E. Maple, Troy A. Bell
  • Patent number: 6299176
    Abstract: A pipe sealing gasket is shown which is designed to be received within a groove provided within a socket end of a thermoplastic pipe. The gasket includes a ring shaped body which, when viewed in cross-section includes a leading nose region and a radially inwardly slanting primary sealing surface which forms a lip seal for engaging a mating spigot end during insertion, the primary sealing surface being joined to a secondary sealing surface by an intermediate circumferential groove region, the secondary sealing surface comprising a planar circumferential region which terminates in an inside corner of the gasket, the inside corner being connected to an outermost wall region of the gasket by an exterior gasket surface, the outermost wall region of the gasket being connected to the nose region of the gasket by vertical step which joins a uniformly sloping external gasket surface.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: October 9, 2001
    Assignee: S&B Technical Products
    Inventors: Samuel Guzowski, Bradford G. Corbett, Jr.
  • Patent number: 6105972
    Abstract: A pipe sealing gasket is shown which is designed to be received within a groove provided within a socket end of a thermoplastic pipe. The gasket includes a ring shaped body which, when viewed in cross-section includes a leading nose region and a lower compression region. The leading nose region is joined to the lower compression region by a leading curved surface region which defines an angle .alpha. with respect to a horizontal axis drawn parallel to the central axis of the pipe. The lower compression region is joined to a secondary seal surface by a trailing curved surface region which defines a second angle .beta. with respect to the horizontal axis drawn parallel to the central axis of the pipe. The angles .alpha. and .beta. are selected to minimize the insertion force required when inserting the male spigot end within the female socket end of the pipe joint while guiding the spigot end and maintaining a compression seal between the pipe sections.
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: August 22, 2000
    Assignee: S & B Technical Products, Inc.
    Inventor: Samuel Guzowski
  • Patent number: 6082741
    Abstract: A resilient gasket is disclosed for providing a seal between corrugated pipes having a plurality of concentric ribs on their outer surfaces, such as drain and sewer pipes to be buried in soil. The gasket comprises a base which is received around a first pipe over top of a rib adjacent an end of the first pipe, with an inner surface adapted to mate with a radially outer surface of the rib, and with legs adapted to extend along forward and rearwardly-sloped faces of the rib. The outer surface of the base is provided with sealing elements to engage the inner surface of the bell adjacent the end of a second pipe. The gasket also has a flap extending outwardly and forwardly from the forwardly extending leg. The flap and the forward leg form a V-shaped member. The flap engages the inner surface of the bell when the first pipe is inserted into the second pipe, and the gasket is rotated rearwardly relative to the rib.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: July 4, 2000
    Assignee: Ipex Inc.
    Inventors: Bernard Gregoire, Pardeep K. Sharma
  • Patent number: 6076834
    Abstract: A sealing element (2) consisting of elastic material is adapted to be molded into for example a concrete pipe socket. In order to improve the binding between the sealing element and the material of the concrete pipe socket the sealing element is at least partially provided with fiber flock (14) at the surface portion which at the molding is adapted to be enclosed by the concrete material of the socket. (FIG.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: June 20, 2000
    Assignee: Forsheda AB
    Inventor: Lennart Jornhagen
  • Patent number: 6045139
    Abstract: A sealing system is formed of gasket attaching portions facing each other, and a metal gasket. Each gasket attaching portion has a hole to be sealed and a flat surface portion around the hole. When the gasket attaching portions are assembled, the holes and flat surface portions face each other. At least one of the gasket attaching portions has a depression around the hole. The metal gasket includes a main portion situated between the flat surface portions of the gasket attaching portions, and an enlarged hollow portion attached to the main portion and facing the depression. When the gasket is tightened between the gasket attaching portions, the enlarged hollow portion is disposed in the depression and compressed thereat to securely and resiliently seal around the holes of the gasket attaching portions.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: April 4, 2000
    Assignee: Ishiwara Gasket Co., Ltd.
    Inventor: Yuuichi Kinoshita
  • Patent number: 5997006
    Abstract: A bidirectional gasket providing a water-tight seal between a manhole assembly and a pipe, having a T-shaped anchoring portion for embedment in a manhole opening. An A-shaped pipe engagement portion joined to the anchoring portion by a connecting web facilitates bending of the gasket. The A-shaped portion has "legs" and recesses forming water pockets preventing water from entering between gasket and pipe. The gasket durometer enhances the water tight seal of the legs with increasing water pressure. The pipe engaging portion accommodates a greater outside pipe diameter compared with conventional connectors due to reduced volume, by providing voids within the connector. The gasket accommodates diameter deflection or ovation in rigid and flexible pipe materials. The A-shaped profile provides greater angular deflection and/or pipe misalignment allowance compared with conventional connectors.
    Type: Grant
    Filed: October 9, 1997
    Date of Patent: December 7, 1999
    Assignee: Poly-Tec Products, Inc.
    Inventors: James A. Westhoff, James A. Kelly
  • Patent number: 5979908
    Abstract: Apparatus including an elastomeric gasket and a rigid holder therefor for resiliently connecting a sewer pipe in the wall opening of a concrete manhold to prevent leakage through the connection under extreme conditions of ground settling and overhead loading. The base of the gasket is anchored in the opening with its interior surface in flush alignment with diverging surfaces of the wall opening and having an inside diameter substantially corresponding to the outside diameter of the pipe for a press fit. The holder is preassembled with the gasket for casting of a port in a wall in situ.
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: November 9, 1999
    Inventor: William D. Jones
  • Patent number: 5944323
    Abstract: A sealing ring for sealing a space between two substantially cylindrical space surfaces (36, 44) axially introducable one into the other comprises two annular sealing portions (2, 4) concentrically connected with each other. The sealing portions have one sealing surface (14, 16) each adapted to engage one space surface (44, 36) each. In its relaxed condition the sealing ring forms a recess (22) between the sealing portions (2, 4) and when this recess (22) is closed substantially without a compression of the sealing ring, the sealing surfaces (14, 16) take a substantially parallel position in relation to the space surfaces (44, 36), respectively. This provides that the sealing ring will at the compression between the space surfaces (44, 36) be subjected to a substantially uniform compression over the main part of its section.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: August 31, 1999
    Assignee: Forsheda AB
    Inventor: Elvir Cavka
  • Patent number: 5941535
    Abstract: A pipe support for mounting a pipe within a pipe-receiving aperture of a concrete container. The pipe support includes an annular anchor, a pipe seal and a removable closure. The annular anchor is for being cast in place within the concrete container surrounding the pipe-receiving aperture. The pipe seal has a flexible, reversible, generally frusto-conical outer portion extending axially rearward and radially inward from the anchor to a joint of the pipe seal. A flexible, reversible, generally frusto-conical inner portion extends axially forward and radially inward from the joint to a smaller diameter end of the pipe seal for receiving a pipe in a generally water-tight manner. The outer portion of the pipe seal can be reversed so that the pipe seal will extend out of the concrete container so that a pipe can be inserted therethrough from inside the container.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: August 24, 1999
    Inventor: James G. Richard
  • Patent number: 5826886
    Abstract: An anchored guide tube centered on an axis and a conduit passing axially through the tube are relatively sealed by a feedthrough fitting having a flexible and shrinkable sleeve having an inner portion secured to an outer surface of the guide tube at an end thereof and a outer portion folded back over the inner portion and forming an annular fold generally at the tube end. A lubricant or the like is provided for facilitating sliding of the outer portion on the inner portion from a storage position folded back over and lying on the inner portion and a use position extending outward past the tube end away from the inner portion.
    Type: Grant
    Filed: December 27, 1996
    Date of Patent: October 27, 1998
    Assignee: Hauff-Technik GmbH & Co. KG
    Inventors: Werner Hauff, Gerhard Gauland, Ernst Seifried
  • Patent number: 5813677
    Abstract: A seal between two interlocking components, especially tubes, with a compression lip (3) and a supporting foam rubber ring (12). The rear space as far as the cone surface can be empty or filled with light foam rubber.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: September 29, 1998
    Assignee: Forsheda-Stefa GmbH
    Inventor: Gerhard Preisendoerfer