Patents Examined by Alison K. Pickard
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Patent number: 7185894Abstract: A corrugated pipe saddle gasket is provided having a leading member, a primary sealing member, and an arm member, with the gasket having a contoured surface extending along at least a portion of the bottom of the primary sealing member and the arm member corresponding to the shape of a corrugated pipe. The primary sealing member of a second length is intermediate the leading member of a first length and the arm member of a third length, with the third length being greater than the sum of the first and second lengths. The gasket has at least a portion of its arm member having a durometer different from the durometer of the primary sealing member. In the preferred embodiment, the arm member has an axis that is substantially horizontal, and the leading member has an axis that is substantially vertical, such that the two axes are substantially perpendicular.Type: GrantFiled: June 9, 2004Date of Patent: March 6, 2007Assignee: Advanced Drainage Systems, Inc.Inventors: Kevin S. Kish, Pardeep K. Sharma
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Patent number: 7178809Abstract: A roof weather strip for use in a convertible car is composed of a plurality of weather strip pieces corresponding to the folding of a sliding roof thereof. When the sliding roof is unfolded to form a roof of the convertible car, longitudinal end parts of adjacent roof weather strip pieces contact each other to define a continuously extending roof weather strip for sealing a side edge of the sliding roof. Each of the weather strip pieces has a base portion, a tubular door glass-sealing portion, and a sliding roof-sealing portion. In each of the longitudinal end parts, the sliding roof-sealing portion is formed tubular, and the tubular sliding roof-sealing portion and the tubular door glass-sealing portion are closed with end faces, respectively, which are provided in each of the longitudinal end parts.Type: GrantFiled: January 21, 2005Date of Patent: February 20, 2007Assignee: Toyoda Gosei Co., Ltd.Inventors: Hiroshi Kuzuya, Yoshihiro Kurosaki, Toshiya Miyashita
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Patent number: 7175183Abstract: Arrangement for the gas-tight fixing of an inlet manifold (1) with a connector flange to the cylinder head (2) of an internal combustion engine, with a sealing plate (3), arranged between the connector flange of the inlet manifold (1) and the cylinder head (2), in which at least one air passage (4, 5, 6, 7) for the at least one inlet tube of the inlet manifold (1) is embodied, with first connecting means (9) for connecting the sealing plate (3) to the inlet manifold (1), which are arranged in housings (10), in or on the sealing plate (3), with second connecting means for connecting the connector flange (1) and/or the sealing plate (3) to the cylinder head (2). A first sealing means (19) is provided on the sealing plate (3) on the one side (18) thereof, surrounding the at least one air passage (4, 5, 6, 7), for fitting to the inlet manifold (1), whereby at least one elastic element (13) is provided between the first connecting means (9) and the sealing plate (3).Type: GrantFiled: December 20, 2001Date of Patent: February 13, 2007Assignee: Carl Freudenberg KGInventors: Fabrice Faurien Des Places, Olivier Jeanne, Xavier Parendel
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Patent number: 7171886Abstract: To seal a pipe mortar, a sealing element (3, 6) is inserted between the pipe (1) and the base (2), with the element elastically balancing out the axial relative movements between the pipe (1) and the base (2). The sealing element (3) is preferably prestressed, with the gas pressure supporting the sealing effect. The sealing element (3, 6) can be a U-shaped or L-shaped steel ring. In the U-shaped sealing element (3), the legs (3.1) are axially prestressed to the extent that the sealing ring (3) and the pipe (1) or the base (2) are pressed together to produce an adequate seal. In the L-shaped sealing element (6), the inside leg (6.1) produces the gas-tight connection when the pipe (1) and the base (2) are screwed together. A sealing lips (6.2) of the sealing ring (6) elastically absorbs changes in length between the pipe and the base that occur during firing.Type: GrantFiled: March 28, 2003Date of Patent: February 6, 2007Assignee: Rheinmetall W & M GmbHInventors: Ralf-Joachim Herrmann, Henning von Seidlitz, Marold Elspass, Rolf Bartolles
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Patent number: 7163206Abstract: A jet pipe assembly containing at least one joint provided with a seal assembly to isolate, substantially, the fluid flowing in the pipe from the fluid external to the pipe. The dynamic member of the seal assembly is provided with both radial and cylindrical sealing surfaces.Type: GrantFiled: February 20, 2003Date of Patent: January 16, 2007Assignee: Cross Manufacturing Company (1938) LimitedInventors: Rodney Alan Cross, Paul Anthony Blanchard
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Patent number: 7159873Abstract: The present invention relates to a seal assembly for use in a rotary machine. The seal assembly comprises a first member and a seal carrier mounted to the first member by a mounting member, a second member spaced from the first member and a seal running member positioned on a second member, and a hydraulic seal for preventing gas leakage from a high pressure source to a low pressure compartment through the mounting member.Type: GrantFiled: December 8, 2004Date of Patent: January 9, 2007Assignee: United Technologies CorporationInventor: Sean McCutchan
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Patent number: 7159874Abstract: A sealing construction provided with a plate member of metal and a rubber member forming a sealing portion and unitedly fixed to the plate member on which a ring concave groove is formed on an obverse face. And, plural through holes, having enlarged opening end portions on a reverse face, are formed through a bottom face of the ring concave groove and the reverse face. Further, a ring plate is disposed as to contact the bottom face of the ring concave groove and partially close the opening portions of the through holes toward the bottom face, and the rubber member, fit to the through hole and surrounding the ring plate, is unitedly connected to the sealing portion in the ring concave groove.Type: GrantFiled: June 9, 2005Date of Patent: January 9, 2007Assignee: Mitsubishi Cable Industies, Ltd.Inventor: Atsushi Hosokawa
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Patent number: 7147228Abstract: A circular seal (19) for the end face of a substantially cylindrical canister, the seal (19) having a substantially rectangular cross-section, and a recess (21) in one side thereof to reduce the area of said cross-section. In use the recessed area (21) of the seal (19) constitutes a weakened portion which will blow out elastically to relieve excess pressure.Type: GrantFiled: July 26, 2001Date of Patent: December 12, 2006Assignee: Wabco Automotive UK LimitedInventor: Philip Edward Tonkin
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Patent number: 7144016Abstract: A gas seal assembly comprises a pair of mutually rotatable sealing members A, B, each of which has a face adjacent a gap between the two members. One of the members B is urged in a direction attempting to close the gap h which constitutes a leakage path through the seal assembly. A gas bleed arrangement 7 allows gas from a high pressure side P3 of the seal assembly to bleed into the gap at a position radially spaced between an inner diameter of the members and an outer diameter of the members A,B so as to apply a force tending to separate the members, the force decreasing as the size of the gap increases.Type: GrantFiled: April 24, 2002Date of Patent: December 5, 2006Assignee: Corac Group PLCInventor: Richard Julius Gozdawa
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Patent number: 7144017Abstract: A piston ring including at least one intermetallic alloy is provided. A piston ring having a wear-resistant composite composition and a piston ring coating comprising a wear-resistant composition are also provided.Type: GrantFiled: December 14, 2004Date of Patent: December 5, 2006Assignee: Koncentra Marine & Power ABInventors: Mehdi Aram, Per Samuelsson, Karin Gong, Changhai Li
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Patent number: 7140617Abstract: A seal of an annular shape comprising a top bead and a side bead that are tilted inwardly at predetermined angles. The top bead and side bead are integrally formed such that a force exerted on the side bead allows the side bead to cooperate with the top bead to properly seal an intake pipe within a cylinder head. This abstract submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.Type: GrantFiled: May 30, 2003Date of Patent: November 28, 2006Assignee: Dana CorporationInventors: Frank W. Popielas, Alexander S. Williamson, Rohit Ramkumar, Troy D. Mc Arthy, Marsha A. Minkov, Colin C. Chen
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Patent number: 7137631Abstract: A cylinder head gasket is provided for dealing with gas leak between cylinder bores of an engine with a reduced size and rigidity. A cylinder head gasket is formed of one or more metal plates. One metal plate is provided with a first bead, a second bead, and a third bead arranged from inside in this order around a cylinder bore. The first bead is formed around each of the cylinder bores. The second beads are combined into a single bead having a width greater than a width of other section of the second beads in an area between adjacent cylinder bores. The third bead does not pass through the area between the adjacent cylinder bores and surrounds all of the cylinder bores.Type: GrantFiled: December 21, 2004Date of Patent: November 21, 2006Assignee: Ishikawa Gasket Co., Ltd.Inventors: Tsunekazu Udagawa, Yuuichi Kinoshita
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Patent number: 7134668Abstract: A differential pumping seal apparatus includes a differential pumping seal for sealing a first space and a second space from each other in a non-contact manner, and a back up seal mechanism for sealing the first space and the second space from each other in a contact manner. The back up seal mechanism is operated to seal the first space and the second space from each other only when the differential pumping seal is stopped or while operation of said differential pumping seal is stopped.Type: GrantFiled: October 23, 2002Date of Patent: November 14, 2006Assignee: Ebara CorporationInventor: Hiroyuki Shinozaki
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Patent number: 7134666Abstract: The invention concerns a support (30) for storing, transporting and using devices (10) for applying a sealing compound onto an element projecting on a surface. The invention is characterised in that it comprises a plurality of said devices borne by a substantially planar base plate (32) and wherefrom the latter can be detached, and each device includes a cap (11) designed to cover entirely said element and containing a predetermined amount of sealing compound in frozen state. The invention is useful for producing impermeability to fluids at rigid connecting elements such as rivets, bolts or the like, for protecting projecting elements of structures against electromagnetic effects such as lightning.Type: GrantFiled: December 8, 2000Date of Patent: November 14, 2006Assignee: Le Joint FrancaisInventors: Georges Beyssac, Jacky Decreuse
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Patent number: 7134667Abstract: A sealing arrangement for turbomachines with a shaft bearing, a throw-off ring and a shaft seal which is assigned to a sealing gap and has a seal housing wherein opposing faces of the throw-off ring and the seal housing form an annular gap for centrifuging out dirt and oil particles.Type: GrantFiled: April 16, 2002Date of Patent: November 14, 2006Assignee: MTU Aero Engines GmbHInventor: Wolfgang Weiler
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Patent number: 7128322Abstract: A cylinder head gasket is coated with an encapsulant that is mixed with a light color pigment to create a light colored encapsulant. A translucent topcoat is preferably coated over the encapsulant. The encapsulant is preferably an epoxy primer, the topcoat is preferably a silicone, and the pigment is preferably made from titanium dioxide or zinc oxide.Type: GrantFiled: August 27, 2003Date of Patent: October 31, 2006Assignee: Freudenberg-NOK General PartnershipInventors: Martin Novil, Jerry Gerstile Smith
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Patent number: 7125019Abstract: The invention relates to a single seal, and more specifically to a seal for a rotary shaft extending through a wall, e.g. that of a pump housing. The single seal exhibits one single sealing location between a stationary and a rotating sealing ring. The seal is attached by means of a flange (12) on to the wall in order to seal off a chamber inside the wall against the shaft (22) and towards the exterior. According to the invention, the sealing rings (1, 2) are biased against each other by means of an axially movable member (5) extending through the wall in order to increase the contact between the sealing rings (1, 2). The resilient member may be a slitted sleeve (5) or a coil spring.Type: GrantFiled: February 13, 2003Date of Patent: October 24, 2006Assignee: Huhnseal ABInventor: Göran Anderberg
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Patent number: 7121554Abstract: In a high-pressure cylinder with an axial plunger, a seal assembly for scaling the gap between the cylinder wall and the plunger. The assembly is disposed in an annual recess in the wall having an open end and a bottom opposite thereto, and comprises a plunger-sealing ring, a cylinder-sealing ring, a resilient low-pressure ring, and an annual seal holder. The seal holder urges the plunger-sealing ring against the cylinder-sealing ring and the low-pressure ring, and urges the latter two rings against the recess bottom and against each other. The plunger-sealing ring and the cylinder-sealing ring are metallic, their mutual contact surfaces are fitted to each other, and the plunger-sealing ring has sufficient section modulus to ensure that under high pressure the contact and bending deformations at the mutual contact surfaces will be sufficiently small as to keep a tight fit therebetween.Type: GrantFiled: December 27, 2001Date of Patent: October 17, 2006Assignee: MLC Extrusion Systems Ltd.Inventors: Victor Lugovskoy, Vladimir Magaziner, Vitaly Chertkov, Guy Danieli
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Patent number: 7121557Abstract: A plate for passing a member from a first side of the plate through to a second side of the plate. The plate includes a retainer having a first surface on the first side of the plate, and a second surface on the second side of the plate. The retainer has one or more ports formed therethrough, at least a first one of the ports having an inner diametric extent configured to receive the outer periphery of the first member therethrough. A layer of an elastomeric material is provided on the first surface of the retainer across at least the first one of the ports. The layer is formed as having a first imperforate portion closing the first one of the ports, which first imperforate portion is openable for receiving the outer periphery of the first member through the inner diametric extent of the first one of the ports.Type: GrantFiled: March 5, 2003Date of Patent: October 17, 2006Assignee: Parker-Hannifin CorporationInventors: Michael Christie, Richard G. Novak, Jeffrey J. Blake, Ronald A. Moner
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Patent number: 7121558Abstract: A gasket for fuel cells and a fabrication method of the same have two or more rubber powders having different hardness are coated onto a rigid substrate together with a liquid rubber, for example by a spray method, for thereby implementing a repulsive elastic property of a rubber coated portion and a sealing property. The cell intervals are constantly maintained by using a rigid plate as a spacer. Since a rigid frame provides a consistent distance during stack manufacture and engagement, stack workability and productivity are enhanced.Type: GrantFiled: December 31, 2003Date of Patent: October 17, 2006Assignee: Hyundai Motor CompanyInventor: Kyu Taek Cho