Particular Coating Or Layer Of Sealing Material Patents (Class 277/592)
  • Patent number: 6565097
    Abstract: A cylinder head gasket comprises a plate, an annular groove formed to surround a combustion chamber opening formed in the plate, a metallic shim fitted into the annular groove, and a full bead located outward of the shim and projecting in the same direction as the shim. The shim is mounted on the plate by an intermittent welding. With this construction, the manufacturing cost can be reduced in comparison to the use of a conventional continuous welding or multi-layer welding. In addition, the thermal deformation of the shim and the plate itself is reduced as compared with when continuous welding or multi-layer welding is used, thus allowing the sealing capability to be improved. In addition, the cylinder head gasket is preferred for use in an engine of a higher combustion temperature than the combustion temperature when the shim is formed of a resinous material.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: May 20, 2003
    Assignee: Taiho Kogyo Co., Ltd.
    Inventor: Osamu Jinno
  • Patent number: 6565099
    Abstract: A flat gasket includes a gasket body and at least one eyelet enclosing the gasket body. The gasket body is formed of a pressure-resistant core which is resistant to temperatures of at least 150° C. and a covering that completely covers flat outer sides of the core and is made of a gas-tight foil of an organic polymer having a long-term temperature resistance of at least 150° C. The eyelet or eyelets enclose the gasket body with a gas-tight joining. The core is formed of a plastic or elastomer reinforced with fibers and/or fillers, or it is formed of mica or graphite. If mica or graphite are used, the core is preferably formed of layers disposed alternately on top of one another and formed of graphite foils and metal foils or layers of mica and metal foils.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: May 20, 2003
    Assignee: SGL Carbon AG
    Inventors: Oswin Öttinger, Otto Mederle
  • Publication number: 20030090068
    Abstract: A material for a gasket used in a vehicular engine comprising a steel plate, a coating film which is formed on one or both sides of said steel plate, and a rubber layer formed on said coating film, wherein the coating film comprises an acid, water-dispersible silica, a titanium compound, and a water-soluble polymer represented by a specific formula.
    Type: Application
    Filed: September 30, 2002
    Publication date: May 15, 2003
    Inventors: Hiroshi Saito, Kenichiro Ishikawa
  • Publication number: 20030085529
    Abstract: A cylinder head gasket that includes a body that has holes stamped through it and is then coated with an encapsulant before assembling armor to the body of the gasket. A topcoat is coated over the body and armor. The encapsulant is preferably an epoxy primer and the topcoat is preferably a silicone.
    Type: Application
    Filed: October 25, 2002
    Publication date: May 8, 2003
    Inventors: Martin Novil, Jerry Gerstile Smith
  • Patent number: 6550782
    Abstract: A cylinder head gasket adapted for being mounted on an internal combustion engine, and comprises an elastic metal sheet (1) having more than one combustion chamber opening and more than one passage hole, including a bead formed in the area surrounding the combustion chamber opening and a bead formed in the area surrounding the passage hole, wherein a sealing material is coated on the front or rear side, or both, of the elastic metal sheet (1). Specifically, the sealing material includes a thermally resistant sealing material (7, 17) and a water/oil resistant sealing material (8, 18), wherein the thermally resistant sealing material (7, 17) may be coated on the front or rear side, or both, of the bead (5) formed in the area surrounding the combustion chamber opening (2), and the water/oil resistant sealing material (8, 18) may be coated on the front or rear side, or both, of the bead (6) formed in the area surrounding the passage hole (3).
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: April 22, 2003
    Assignee: Uchiyama Manufacturing Corp.
    Inventors: Yoshimichi Okazaki, Takashi Nanba, Kenji Matsumoto, Yoshitaka Tanaka
  • Patent number: 6547253
    Abstract: In an attachment structure of a gasket for a refrigerant-seal, both first and second connection members are disposed to define a seal space by first and second opposite surfaces and first and second wall surfaces, and the gasket having a beam portion is disposed in the seal space so that one end surface of the gasket is held on the first wall surface of the first connection member and the other end surface of the gasket is separated from the second wall surface of the second connection member by a predetermined clearance, before both the first and second connection members are fastened. After both the first and second connection members are fastened, the gasket extends, and the other end surface of the gasket press-contacts the second wall surface.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: April 15, 2003
    Assignee: Denso Corporation
    Inventors: Ryoichi Izumi, Shinichi Inagaki
  • Patent number: 6536776
    Abstract: A metal laminate gasket for an internal combustion engine is formed by a first metal plate having a first hole corresponding to a hole of the engine, and a bore ring and a second metal plate both being disposed under the first metal plate. The bore ring has a second hole corresponding to the first hole, and at least two first engaging members formed around an outer periphery thereof with a predetermined distance away from each other. The second metal plate includes a third hole having a size for receiving the outer periphery of the bore ring, and at least two second engaging members formed around an inner periphery thereof to engage the at least two first engaging members. The first and second engaging members are arranged such that the bore ring can be positioned and retained in the second metal plate in only one position even if the bore ring is positioned upside down.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: March 25, 2003
    Assignee: Ishikawa Gasket Co., Ltd.
    Inventor: Takashi Inoue
  • Patent number: 6530575
    Abstract: The invention concerns a joint comprising a flat metal core made of soft steel, coated on each of its surfaces with a layer of elastomer bound by constituents ensuring its adherence on the metal, the thickness of the elastomer varying on the joint surface, depending on the shape of the parts between which the joint is designed to be mounted and the sealing requirements at each point on the joint surface, the elastomer being cold deposited on each joint surface, then the whole assembly being placed in a heated mould, for forming the elastomer before vulcanisation.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: March 11, 2003
    Assignee: Federal Mogul Sealing Systems
    Inventors: Jean-Paul Poquet, Alexis Combet
  • Patent number: 6527277
    Abstract: Flat gasket with a gasket plate formed by a sheet metal layer for sealing a sealing gap between sealing surfaces of machine components, the gasket plate being provided with an elastomeric sealing element in an area in which the component sealing surfaces lead to a locally varying sealing surface pressure; in order that the sealing element can already be applied by the gasket manufacturer and will not be subjected to the danger of damage during installation of the gasket, a sealing element formed from a material curable in situ is applied to a first main surface of the sheet metal layer, and the sheet metal layer is provided with a cutout for passage of the curable sealing element material therethrough so that the sealing element material passes through this cutout and comes to rest against the adjacent component sealing surface only after installation of the gasket.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: March 4, 2003
    Assignee: Elring Klinger AG
    Inventor: Oliver Hegmann
  • Patent number: 6528168
    Abstract: A carbon/silicon composite material wherein a silicon carbide containing carbon layer which is formed by silicon and boron carbide being penetrated from a surface of a carbon substrate into the inside thereof to allow the silicon and carbon of the carbon substrate to react with each other so as to be converted into silicon carbide and in which the silicon carbide is dispersed generally uniformly along a depth direction is formed on the carbon substrate as a first layer, the silicon carbide containing carbon layer having a thickness of not less than 1 mm.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: March 4, 2003
    Assignee: Toyo Tanso Co., Ltd.
    Inventors: Takashi Matsumoto, Masaaki Kawakami
  • Patent number: 6517084
    Abstract: A cylinder head gasket for an internal combustion engine is formed of a metal plate extending substantially throughout an entire area to be sealed. The metal plate has a plurality of holes corresponding to cylinder bores of the engine, a plurality of beads surrounding the respective holes, and at least one area situated between the holes adjacent to each other. Seal coatings are deposited above the beads in the area. The seal coating has heatproof characteristic and compressibility to strengthen surface pressure of the beads at the area.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: February 11, 2003
    Assignee: Ishikawa Gasket Co., Ltd.
    Inventor: Susumu Inamura
  • Patent number: 6517085
    Abstract: A cylinder head gasket for an internal combustion engine is formed of one metal plate having a base portion extending substantially throughout an entire area to be sealed, a hole formed in the base portion corresponding to the hole of the engine, and a bead surrounding the hole. A resin coating is deposited on at least a part of the bead of the metal plate. Thus, the bead is reinforced and sealing ability is improved.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: February 11, 2003
    Assignee: Ishikawa Gasket Co., Ltd.
    Inventors: Tsunekazu Udagawa, Susumu Inamura, Shinichi Sato
  • Patent number: 6508474
    Abstract: A metal gasket for an internal combustion engine is formed of at least one metal plate extending substantially throughout an entire area to be sealed. The metal plate includes a hole to be sealed, and a bead projecting outwardly from the metal plate to surround the hole. A concave is formed inside the bead to extend inwardly from an outer surface of the metal plate. A sealing material is disposed in the concave to project outwardly from the outer surface of the metal plate. Thus, even if a foreign material is disposed on the bead, the sealing ability of the gasket is not substantially affected.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: January 21, 2003
    Assignee: Ishikawa Gasket Co., Ltd.
    Inventor: Yuichi Kinoshita
  • Publication number: 20030011139
    Abstract: A cylinder head gasket is formed of a single metal base plate for sealing between a cylinder head and a cylinder block of an internal combustion engine. The cylinder head gasket has a primary sealing portion including a grommet or shim around a cylinder bore, and a secondary sealing portion outside the primary sealing portion. The secondary sealing portion is formed of a bead and a foamed coating layer coated on one side or both sides of the bead to cover at least a portion of the bead in a belt shape.
    Type: Application
    Filed: July 12, 2002
    Publication date: January 16, 2003
    Applicant: ISHIKAWA GASKET CO., LTD.
    Inventor: Yoshio Miyaoh
  • Publication number: 20030006565
    Abstract: A cylinder head gasket of the invention is used for an internal combustion engine with at least three cylinder bores. The gasket is formed of a metal plate extending substantially throughout an entire area to be sealed, and a reinforce coating. The metal plate includes two end holes, at least one inner hole sandwiched between the two end holes, and beads surrounding the respective holes. The two end holes and at least one inner hole are arranged linearly to correspond to the cylinder bores of the engine. The reinforce coating is deposited around the peripheral portion of the at least one inner hole so that sealing pressures are formed substantially equally around the two end holes and at least one inner hole. Other reinforce coatings may be deposited around the peripheral portions of the end holes.
    Type: Application
    Filed: July 11, 2001
    Publication date: January 9, 2003
    Applicant: ISHIKAWA GASKET CO., LTD.
    Inventors: Susumu Inamura, Yutaka Kato
  • Patent number: 6497413
    Abstract: For manufacturing a seal between two machine parts (10, 11) which together enclose a space (14) in which, at least at times, high pressure and/or high temperature prevail, sealing means which contain a curable composition (30) are arranged between the two machine parts (10, 11). The curable composition (30) is applied directly onto one or both machine parts (10, 11) in liquid form at least in the area which does not directly adjoin the space (14) in which, at least at times, high temperature and/or high pressure prevails. The two machine parts are built in before the curing of composition (30). A sealing ring can be inserted between the two machine parts (10, 11) directly around the edge of the high pressure and high temperature space (14) or that edge can be slightly raised and the curable composition (30) can be used for sealing outside this area.
    Type: Grant
    Filed: January 8, 2001
    Date of Patent: December 24, 2002
    Assignee: Henkel Loctite Deutschland GmbH
    Inventor: Thomas M. Schmatz
  • Publication number: 20020171206
    Abstract: A coating used to seal together surfaces of components is disclosed. The coating reduces costs associated with using gaskets and fine machining of metal components, and has slip characteristics that allow sealed components to move without eroding the coating. The coating is particularly useful in high temperature environments such as the exhaust systems of motor vehicles. Methods of using coatings to seal components are also disclosed.
    Type: Application
    Filed: May 21, 2001
    Publication date: November 21, 2002
    Applicant: Dana Corporation
    Inventor: Richard J. Kozerski
  • Patent number: 6478306
    Abstract: To provide a separation plate (1) mounted on a valve body (21) for automatic transmission and having a foamed rubber layer (3) mounted on both sides or one side of a separation plate body (2), which is easy to produce, advantageous in cost and free from generation of rubber burrs.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: November 12, 2002
    Assignee: NOK Corporation
    Inventors: Jun Kobayashi, Akira Morio
  • Patent number: 6478302
    Abstract: In the gasket, a shim member formed of shim portions and connecting portion is assembled with an upper metal plate with curved portions and flanges such that each shim portion is located between the flange and a base portion of the upper plate, and a lower metal plate is placed under the upper plate not to overlap the flanges and the shim member. The shim member is provided with an identification sign for identifying the thickness of the gasket and an assembly sign for identifying the orientation of the shim member at the connecting portion where the sealing ability is not affected, which can be seen from the back of the gasket after assembly. Therefore, when the shim member is assembled with the upper plate, the orientation of the shim member can be identified easily. Also, after assembly, the orientation of the shim member as well as the thickness of the gasket can be identified easily.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: November 12, 2002
    Assignee: Ishikawa Gasket Co., Ltd.
    Inventor: Hironobu Nakamura
  • Patent number: 6478307
    Abstract: A metal gasket is described which has a structure with no beads so that the need for dies used for molding is eliminated, thereby facilitating the processing of the gasket and achieving good cost performance, and which is excellent in sealing ability. The metal gasket comprises (i) an elastic metal plate having a base and folded-back portions each of which is formed so as to create a clearance together with the base and disposed so as to extend around a bore hole and (ii) a metal plate which is thicker than the elastic metal plate and has lower level portions each of which is located at a position closed to each bore hole, and the elastic metal plate and the metal plate are laminated such that each folded-back portion of the elastic metal plate faces the lower level portion of the metal plate.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: November 12, 2002
    Assignee: Nippon Gasket Company Ltd.
    Inventors: Kiyoshi Sugimoto, Masahiko Miura, Kazuya Yoshijima
  • Publication number: 20020163139
    Abstract: The invention concerns a joint comprising a flat metal core made of soft steel, coated on each of its surfaces with a layer of elastomer bound by constituents ensuring its adherence on the metal, the thickness of the elastomer varying on the joint surface, depending on the shape of the parts between which the joint is designed to be mounted and the sealing requirements at each point on the joint surface, the elastomer being cold deposited on each joint surface, then the whole assembly being placed in a heated mould, for forming the elastomer before vulcanisation.
    Type: Application
    Filed: May 22, 2000
    Publication date: November 7, 2002
    Inventors: JEAN-PAUL POQUET, ALEXIS COMBET
  • Patent number: 6450504
    Abstract: The invention relates to a metallic cylinder head gasket for an internal combustion engine, having a cover plate which faces the cylinder head of the internal combustion engine in the installed state and is provided with one or more openings arranged next to one another, corresponding to the combustion chambers of the internal combustion engine. The cover plate has a bead around each opening with a space between the bead and the opening. This leaves a straight sheet metal portion in the edge region of the opening. Arranged adjacent to the bead around each opening radially inwards from the respective bead facing away from the cylinder head is a stopper for the bead, which at the same time forms an upward combustion chamber extension of the seal. In this case, the stopper decreases in its thickness radially outwards in such a way that the surface pressure in the region of the stopper is essentially homogeneous over the width of the stopper under operating conditions.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: September 17, 2002
    Assignee: ElringKlinger AG
    Inventors: Michael Bleidt, Armin Diez, Frank Schmucker
  • Publication number: 20020084595
    Abstract: A gasket with selectively positioned seal enhancement zones located in the web of the gasket is provided. The gasket is formed of a base sheet of gasket material cut to define an interior aperture bounded by an interior edge and webs. Slots are formed at selected locations within the seal enhancement zones and the slots are bounded by edges. An edge coating of polymeric material is applied to the slot edges and, in one embodiment, project beyond the facial planes of the base sheet to form raised rims. An edge coating also may be formed on the interior edge bounding the aperture of the gasket. When clamped between a pair of flange surfaces, the polymeric edge coatings on the slot edges engage and seal against the flange surfaces within the seal enhancement zones to provide an enhanced seal against leakage in these zones.
    Type: Application
    Filed: July 25, 2001
    Publication date: July 4, 2002
    Inventor: John S. Forry
  • Publication number: 20020079651
    Abstract: The invention concerns a cylinder head gasket for sealing the region between cylinder head and a cylinder block having a cylinder liner of an internal combustion engine, comprised of at least one sealing sheet that has at least one combustion chamber passage opening and a combustion chamber crimp running around the combustion chamber passage opening, where a stop serving as a path limiter for the combustion chamber crimp is provided on the side of the combustion chamber crimp facing away from the combustion chamber passage opening and which stop encloses the combustion chamber crimp laterally, where at least one sealing sheet has at least two concentric combustion chamber crimps, which are enclosed laterally by the stop.
    Type: Application
    Filed: December 11, 2001
    Publication date: June 27, 2002
    Inventors: Gunther Unseld, Josef Ludwig, Stefan Obermaier
  • Patent number: 6409178
    Abstract: A multi-layered gasket for a combustion engine having a central gasket layer and a plurality of active and spacer gasket layers that are removably secured together is disclosed. The active layers are arranged in face-to-face engagement with the spacer layers in an alternating manner with the central layer being positioned in the center of the gasket. The spacer layers may be selectively removed or added to vary the compression ratio of the engine. Alternatively, spacer layers may be selectively substituted With additional spacer layers having differing thicknesses to selectively vary the compression ratio of the engine. Each of the gasket layers are provided with a visual indicator to distinguish the respective layers from one another. Retaining mechanisms for removably securing the gasket layers together are also disclosed.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: June 25, 2002
    Assignee: Dana Corporation
    Inventors: Edward Raden, William A. Johnson
  • Publication number: 20020074737
    Abstract: A metal gasket is formed by a bead plate provided with a continuous bead, and an outer plate partly bent around combustion chamber holes to laminate the metal plates together. The bead has a linear common portion situated in an intermediate area between two cylinder bore holes, curved surrounding portions diverging from the linear common portion near the one second hole to partly surround the cylincder bore and water hole, and a curved linking portion extending between the curved surrounding portions to partly surround the water hole. The water hole is completely surrounded by the parts of the curved surrounding portions and the curved linking portion.
    Type: Application
    Filed: December 13, 2001
    Publication date: June 20, 2002
    Applicant: Ishikawa Gasket Co., Ltd.
    Inventor: Soichi Isogai
  • Patent number: 6398224
    Abstract: The invention relates to a metal seal, which is fitted with a coating containing 10 to 60 wt. % of at least one elastomer, 5 to 50 wt. % of at least one inorganic fiber, 0.5 to 20 wt. % of at least one organic fiber, 10 to 80 wt. % filling material. The part by weight ratio of the at least one elastomer in relation to the part by ratio sum of the at least one inorganic fiber and the at least one organic fiber ranges from 1:1.1 and 1.5:5. The invention further relates to the coating material.
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: June 4, 2002
    Assignee: Dana Corporation
    Inventors: Wilfried Erb, Konrad Gollmitzer, Alfred Weiss
  • Publication number: 20020063395
    Abstract: A cylinder head gasket includes a metal gasket plate; a lubricant aperture provided in the plate for serving as a passage for a lubricant; a lubricant aperture seal surrounding the lubricant aperture and being of a lubricant-resistant material; a coolant aperture provided in the plate for serving as a passage for a coolant; a coolant aperture seal surrounding the coolant aperture and being of a coolant-resistant material; and a single coupling agent coating provided on the plate. The coupling agent coating is of a material which bonds the lubricant aperture seal and the coolant aperture seal to the plate.
    Type: Application
    Filed: November 26, 2001
    Publication date: May 30, 2002
    Inventors: Manfred Klinner, Timo Walz, Klaus Bendl, Ralf Salameh, Alain Retiere
  • Patent number: 6391474
    Abstract: The invention relates to a cylinder liner made from a hypereutectic aluminum/silicon alloy which is surrounded by a surround casting material, which is characterized in that the minimum ratio of the wall thickness of the surround casting material of the cylinder liner is 1.4.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: May 21, 2002
    Assignee: DaimlerChrysler AG
    Inventors: Franz Rückert, Peter Stocker
  • Patent number: 6386549
    Abstract: A multi-layered gasket for a combustion engine having a plurality of active and spacer gasket layers that are removably secured together is disclosed. The active layers are arranged in face-to-face engagement with the spacer layers in an alternating manner. The spacer layers may be selectively removed or added to vary the compression ratio of the engine. Alternatively, spacer layers may be selectively substituted with additional spacer layers having differing thincknesses to selectively vary the compression ratio of the engine. Retaining mechanisms for removably securing the gasket layers together are also disclosed.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: May 14, 2002
    Assignee: Dana Corporation
    Inventor: William A. Johnson
  • Publication number: 20020027327
    Abstract: In a metallic gasket having a metallic sheet made with a recess surrounding around a diverse type of hole, in which an elastic sealing member is installed, a relation between the recess and the elastic sealing member in their cross sections and also configurations is so specified as to use the elastic sealing member within a range of elastic limit inherent in the elastic sealing member, thereby improving the sealing performance of the metallic gasket. The elastic sealing member installed in the recess formed around the hole such as combustion hole and so on is composed of a top extending above a major side of the metallic sheet, and a bottom having a cross section reaching widthwise opposing side surfaces of the recess. The elastic sealing member is made not more than the recess in their cross section perpendicular to the major side of the metallic sheet. Thus, the elastic sealing member, when the metallic gasket is squeezed, may serve its useful function within the range of inherent elastic limit.
    Type: Application
    Filed: August 30, 2001
    Publication date: March 7, 2002
    Applicant: NIPPON GASKET CO., LTD
    Inventors: Kiyoshi Sugimoto, Tsuyoshi Hiramatsu, Kazuya Yoshijima
  • Patent number: 6349945
    Abstract: Cylinder head gasket comprising a gasket plate which has at least one metal layer with elastic properties and in which a through opening is formed which is surrounded by a bead-like embossment formed in this metal layer, wherein the bead-like embossment forms an approximately linear, self-contained sealing zone with increased sealing surface pressure when the gasket is fitted and the metal layer is provided with a first coating consisting of a plastic material which has elastic properties on its side forming this sealing zone at least in the area of this sealing zone as well as to both sides of the latter; to improve the sealing capacity of the cylinder head gasket around the said through opening, the metal layer is coated on its side provided with the first coating with a sealing bead closed upon itself, likewise surrounding the through opening and consisting of a plastic material, this bead being arranged on the side of the sealing zone facing away from the through opening as well as at a radial distance fr
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: February 26, 2002
    Assignee: ElringKlinger AG
    Inventors: Frank Schmucker, Peter Schenk
  • Patent number: 6349944
    Abstract: A plate-shaped gasket 23 is inserted between a plurality of parts with an edge of the plate-shaped gasket 23 offset such that portions of mutually joining surfaces of the plurality of parts to be joined to each other (a cylinder block 1 and a cylinder head 4, as well as a chain cover 22 and a sprocket casing portion 20 in the embodiment) directly oppose each other, and a liquid gasket 29 is filled in a gap G formed by the directly opposing portions of the plurality of parts and the offset edge (an inner peripheral edge of a chain accommodating hole 27) of the plate-shaped gasket. As a result, since the thickness of the liquid gasket can be determined by the thickness of the plate-shaped gasket, it becomes unnecessary to form a recessed portion for storing the liquid gasket by machining, so that the number of manufacturing steps is prevented from increasing.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: February 26, 2002
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Izumi Sugiyama, Toshiyuki Satou, Masayasu Sakata
  • Publication number: 20020020970
    Abstract: A cylinder head gasket for an internal combustion engine is formed by a first metal plate extending substantially throughout an entire area to be sealed and having a first hole corresponding to a hole of the engine, and second and third metal plates disposed to sandwich the first plate and having second and third holes formed in the respective second and third plates corresponding to the first hole. First and second beads are formed in the respective second and third plates to extend toward the first metal plate. A first resin coating is deposited on at least one side of the first metal plate at an inner portion relative to the first bead, and a second resin coating is deposited on at least one side of the first metal plate at an outer portion relative to the first bead without extending over an entire surface thereof. The second resin coating has a thickness at most equal to that of the first resin coating. The surface pressure around the hole can be adjusted precisely.
    Type: Application
    Filed: August 6, 2001
    Publication date: February 21, 2002
    Inventors: Yoshio Miyaoh, Noriaki Akimoto
  • Publication number: 20020017762
    Abstract: A cylinder head gasket for an internal combustion engine is formed of a metal plate extending substantially throughout an entire area to be sealed. The metal plate has a plurality of holes corresponding to cylinder bores of the engine, a plurality of beads surrounding the respective holes, and at least one area situated between the holes adjacent to each other. Seal coatings are deposited above the beads in the area. The seal coating has heatproof characteristic and compressibility to strengthen surface pressure of the beads at the area.
    Type: Application
    Filed: June 29, 2001
    Publication date: February 14, 2002
    Applicant: ISHIKAWA GASKET CO., LTD.
    Inventor: Susumu Inamura
  • Publication number: 20020017763
    Abstract: A cylinder head gasket for an internal combustion engine is formed of one metal plate having a base portion extending substantially throughout an entire area to be sealed, a hole formed in the base portion corresponding to the hole of the engine, and a bead surrounding the hole. A resin coating is deposited on at least a part of the bead of the metal plate. Thus, the bead is reinforced and sealing ability is improved.
    Type: Application
    Filed: August 6, 2001
    Publication date: February 14, 2002
    Applicant: Ishikawa Gasket Co., Ltd.
    Inventors: Tsunekazu Udagawa, Susumu Inamura, Shinichi Sato
  • Publication number: 20020014745
    Abstract: A cylinder head gasket for an internal combustion engine is formed of first and second metal plates laminated together. The first plate has a first hole, a first bead surrounding the first hole, and an inner portion extending from an edge of the first hole to an inner side of the first bead. The second plate has a second hole, and a second bead surrounding the second hole and located above the inner portion. When assembled, the first bead faces the second plate and the second bead faces the first plate. A step regulation layer formed of resin is deposited on at least a part of the inner portion of the first plate such that the second bead is placed on the step regulation layer. The surface pressure for the first bead can be easily adjusted by the step regulation layer.
    Type: Application
    Filed: August 6, 2001
    Publication date: February 7, 2002
    Inventors: Yoshio Miyaoh, Noriaki Akimoto
  • Publication number: 20020014744
    Abstract: A cylinder head gasket for an internal combustion engine is formed of a first metal plate and a second metal plate laminated together. The first and second metal plates have first and second beads laterally spaced apart from each other and facing each other. A resin layer is deposited on the first metal plate to extend continuously from an inner portion to an outer portion relative to the first bead such that the second bead is disposed on the resin layer. The resin layer securely seals between the first and second metal plates while providing compressibility.
    Type: Application
    Filed: August 6, 2001
    Publication date: February 7, 2002
    Applicant: Ishikawa Gasket Co., Ltd.
    Inventor: Tsunekazu Udagawa
  • Publication number: 20020000696
    Abstract: A cylinder head gasket adapted for being mounted on an internal combustion engine, and comprises an elastic metal sheet (1) having more than one combustion chamber opening and more than one passage hole, including a bead formed in the area surrounding the combustion chamber opening and a bead formed in the area surrounding the passage hole, wherein a sealing material is coated on the front or rear side, or both, of the elastic metal sheet (1). Specifically, the sealing material includes a thermally resistant sealing material (7, 17) and a water/oil resistant sealing material (8, 18), wherein the thermally resistant sealing material (7, 17) may be coated on the front or rear side, or both, of the bead (5) formed in the area surrounding the combustion chamber opening (2), and the water/oil resistant sealing material (8, 18) may be coated on the front or rear side, or both, of the bead (6) formed in the area surrounding the passage hole (3).
    Type: Application
    Filed: June 29, 2001
    Publication date: January 3, 2002
    Inventors: Yoshimichi Okazaki, Takashi Nanba, Kenji Matsumoto, Yoshitaka Tanaka
  • Patent number: 6328313
    Abstract: A gasket comprises a thin plate to be arranged between confronting surfaces of a cylinder block and a cylinder head. The thin plate has attached with adhesives susceptible to plastic deformation at areas where the thin plate comes in mating with the confronting surfaces. The adhesives come in adhesion with the confronting surfaces to restrain relative displacement that might occur constantly between the mating surfaces of the plate and the confronting surfaces. This contributes to keeping the gasket stiff. The adhesives of plastic deformation property are arranged along peripheries of cylinder bore holes at the areas where the thin plate comes in mating with the confronting surfaces. The adhesives, when have come in adhesion with the confronting surfaces, not only establish the reliable head-to-block sealing, but also restrain the displacement that might occurs constantly between the mating surfaces, in favor of plastic deformation of the adhesives.
    Type: Grant
    Filed: November 1, 1999
    Date of Patent: December 11, 2001
    Assignee: Nippon Gasket Co., Ltd.
    Inventors: Minoru Teranishi, Takao Kinoshita
  • Publication number: 20010048202
    Abstract: The invention relates to the application of a projection to a metal layer of a metallic cylinder-head gasket for an internal-combustion engine having at least one elastic metal sheet, which is provided with one opening or a plurality of adjacent openings depending on the number of combustion chambers of the internal-combustion engine, a bead being provided in the at least one elastic metal sheet around each opening, at a distance from the latter, so that a straight section of sheet metal is left clear in the region of the edge of the opening, for which bead a spring travel limiter or stopper, which runs coaxially with respect to the bead and is formed by the projection, is provided, the projection being produced from a mixture which contains a plastic with a high mineral filler content. A mixture of an elastomer in particular with a filler which has been surface-treated by means of a silane is used.
    Type: Application
    Filed: April 20, 2001
    Publication date: December 6, 2001
    Inventors: Hans-Rainer Zerfab, Viktor Winkovic
  • Publication number: 20010045708
    Abstract: The invention refers to gaskets suitable for usage in internal combustion engines. The gaskets according to the invention comprise at least one metal layer, the metal layer having one or several openings in accordance with the number and location of the combustion chambers, and, if present, coolant and lubricant passageways of the internal combustion engine, and a metal ring located around the combustion chamber opening(s), the metal ring being laminated on the metal layer and joined to the latter over a plastic layer. The plastic layer provides the gasket in the region of the metal ring with plastic, plastic/elastic or elastic characteristics. Furthermore the invention refers to a method for manufacturing the gasket according to the invention.
    Type: Application
    Filed: May 4, 2001
    Publication date: November 29, 2001
    Inventors: Kurt Hohe, Gunther Unseld
  • Patent number: 6283479
    Abstract: A sealing arrangement improves sealing of a shaft in a control system on a gas turbine engine. The sealing arrangement includes a first plate and a non-metallic plate. The non-metallic plate has a glass transition temperature above an operating temperature range. The non-metallic plate and the first plate are disposed between a high temperature, high pressure fluid and a low pressure fluid.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: September 4, 2001
    Assignee: Solar Turbines Incorporated
    Inventor: Shihming Jan
  • Patent number: 6279916
    Abstract: The invention relates to a flat gasket, on the main sealing faces of which are arranged one or several narrow flat sealing ridges, in the region of which an increased surface pressure and deformability are generated, whereby improved micro-sealing is attained. The invention further concerns a method for producing stamping moulds, in particular for stamping said flat gaskets according to the invention.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: August 28, 2001
    Inventor: Friedhelm Stecher
  • Patent number: 6250645
    Abstract: A metal gasket is formed of a metal plate having a hole, an edge portion around the hole, and a base portion extending substantially throughout an entire area of the gasket and located outside the edge portion. At least one annular projection and at least one annular groove are formed on at least one side of the edge portion of the metal plate as one unit. The annular groove is located between the annular projection and the base portion. The base portion of the metal plate has a thickness greater than a thickness at the annular groove and less than a thickness at the annular projection to thereby provide a surface pressure at the at least one annular projection.
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: June 26, 2001
    Assignee: Ishikawa Gasket Co., Ltd.
    Inventor: Tsunekazu Udagawa
  • Patent number: 6247704
    Abstract: A composite gasket includes a central core located between non-metallic outer facing layers. Each non-metallic outer facing layer has an outer core adjacent the central core. The outer cores can be either perforated or non-perforated. A bead is provided on the central core to produce a resilient biasing force that urges the outer facing layers into contact with respective mating surfaces to improve gasket sealing. The central core optionally has an elastomeric coating to improve sealing between the central core and the outer cores to prevent leakage between gasket layers.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: June 19, 2001
    Assignee: Dana Corporation
    Inventor: Daniel C. Battistoni
  • Patent number: 6247703
    Abstract: A gasket which is compression-failure resistant, even at operating flange pressures in the range of from about 3,000 to about 15,000 PSI and also has a good sealing ability, comprises a soft gasket material having two opposed, facial surfaces and an aperture with an edge perpendicular to the facial surfaces, wherein the edge of the aperture has a polymer coating (coating A) on the edge for a good sealing ability. In this embodiment, except for coating A, the gasket is otherwise not coated which makes the gasket compression-failure resistant. In embodiments which need even better sealing ability, at least one of the opposed, facial surfaces has polymer coating B, which may abut both the edge and polymer coating A, wherein polymer coating B on the facial, opposed surface leaves the gasket uncoated for sealing ability in an amount effective to give the gasket compression failure resistance.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: June 19, 2001
    Assignee: Interface Solutions, Inc.
    Inventors: John S. Forry, Brian C. Lehr
  • Patent number: 6237919
    Abstract: A coating for a cylinder head gasket, which contains a modified silicone system having a vinyl ether incorporated therein. The modified silicone system is preferably UV-curable, the preferred vinyl ether in the silicone system is cyclohexanedimethanol divinyl ether, and the coating consists completely of reactive components prior to curing.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: May 29, 2001
    Assignee: Dana Corporation
    Inventors: Frank C. Grant-Acquah, Kanu G. Shah, Brent Boldt
  • Patent number: 6186506
    Abstract: A gasket is formed of a gasket body having at least one hole to be sealed, and a sealing space situated around at least a part of the hole. A heat foamable coating is disposed only in the sealing space. The gasket is installed between two members, and then, the gasket is heated to foam the foamable coating in the sealing space. Thus, the foamable coating provides a surface pressure in the sealing space by foaming to securely seal thereat.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: February 13, 2001
    Assignee: Ishikawa Gasket Co., Ltd.
    Inventor: Yuichi Kionoshita
  • Patent number: 6164422
    Abstract: A brake (10) for a hydraulic vehicle brake system has a housing (14) with a bore (18) which is formed therein and in which a brake piston (20) is received in a sealingly and slideably displaceable manner. The brake piston (20) is adapted to press a brake lining (32) against a brake disk (12) by means of hydraulic pressure. For sealing, the brake piston (20) is sealed off relative to the bore (18) by means of a sealing ring (26) made of elastic material. In order to optimize the adhesive and sliding properties between the sealing ring (26) and brake piston (20), the sealing ring (26) and/or at least that outer surface of the brake piston (20) which cooperates with the sealing ring (26) is coated with a lacquer which contains an organic binder and a solid lubricant.
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: December 26, 2000
    Assignee: Lucas Industries public limited company
    Inventors: Franco Sanitate, Willibrord Conrad