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| Number | Title | Issue Date |
| 8100411 | Cylinder head gasket Cylinder head gasket whose gasket plate comprises a single sheet metal layer, combustion chamber openings, and for each combustion chamber opening a ring-shaped combustion chamber sealing element, which is a sheet metal ring that is arranged on the sheet metal layer... | 01/24/2012 |
| 7293779 | MLS gasket with bore edge stopper bead A gasket includes an intermediate layer having resilient sealing beads flanked by stopper beads. The three-layer gasket, particularly designed for heavy duty racing engines, provides a relatively robust cross-section in web-areas between cylinder bore apertures. A t... | 11/13/2007 |
| 7290770 | Metal laminate gasket A metal gasket for an internal combustion engine includes a first metal plate with a folded portion; a ring member with a sandwiched portion having a sealing bead and an extension portion, with the sandwiched portion being sandwiched in the folded portion to provide... | 11/06/2007 |
| 7220109 | Pump cylinder seal A compact opposed piston pump minimizes axial spacing between its pistons on the drive shaft and thereby reduces the shaking couple and noise from reciprocation. Each piston has its own eccentric element press-fit into the connecting rods so as not to occupy space b... | 05/22/2007 |
| 7097177 | Metal laminate gasket A metal laminate gasket with a hole to be sealed includes a base metal plate having a first hole corresponding to the hole to be sealed, and a first steel plate laminated on one side of the base metal plate and having a second hole with a diameter greater than that ... | 08/29/2006 |
| 7070187 | Gasket assembly A gasket assembly includes a plurality of carriers. Each carrier has at least one non-sealing aperture and at least one sealing aperture. The sealing aperture has a seal which extends around a perimeter of the sealing aperture and is attached to the carrier. The plu... | 07/04/2006 |
| 7051897 | Closure for a pressure vessel and method A closure assembly 10 contains positive and/or vacuum pressure within a pressure vessel 16 having a neck 12. A circumferential locking member 22 supported on a door 20 locks the door to the neck, and is radially moveable between an... | 05/30/2006 |
| 7036674 | Closure for a pressure vessel and method A closure assembly 10 contains positive and/or vacuum pressure within a pressure vessel 16 having a neck 12. A circumferential locking member 22 supported on a door 20 locks the door to the neck, and is radially moveable between an... | 05/02/2006 |
| 7017917 | Seal structure in engine body A crankcase is coupled to a lower end face of a cylinder block of an engine and includes first and second case halves coupled to each other in a plane perpendicular to joint surfaces of the cylinder block and the crankcase. A U-shaped seal groove is defined in one o... | 03/28/2006 |
| 7017918 | Combustion stopper seal A gasket having a gasket plate formed with an aperture. An annular flange provides a stopper seal around the aperture. The flange has spaced areas of varying thickness. The gasket is formed by punching an opening in the gasket plate inwardly of an annular array of b... | 03/28/2006 |
| 7000925 | Multi-layered cylinder head seal Multi-layered cylinder head seal, with a spacing layer that has openings corresponding to the number of combustion chambers taking cylinder bushings in a combustion engine, in the area of which a combustion chamber edging containing a soft iron ring is located, and ... | 02/21/2006 |
| 7000924 | Flat gasket and method for the production thereof The invention relates to a flat gasket comprising at least one metallic layer, in which at least one continuous opening is made, whereby the or at least one metallic layer (1) is provided, at least in areas, in the shape of an undulated and/or serrated profil... | 02/21/2006 |
| 6957486 | Device and process for the production of gasket layers In order to provide a device for the production of gasket layers for single or multiple layered gaskets from one respective gasket layer section of a starting material comprising several continuous gasket layer sections, comprising a follow-on combination tool with ... | 10/25/2005 |
| 6951338 | Cylinder head gasket A multi-layered cylinder head gasket for positioning between a cylinder head and a cylinder block of an engine includes a spacer layer and a stopper layer. The stopper layer includes either a wave or rigid stopper positioned at a periphery of an aperture of the stop... | 10/04/2005 |
| 6931705 | Cylinder liner having modified combustion seal and method A method of modifying a combustion seal of a diesel engine fitted with a cylinder liner having an annular top sealing ridge which is damaged or mispositioned so as to interrupt the combustion seal is provided. The method includes exposing the sealing ridge and, with... | 08/23/2005 |
| 6921084 | High strength crack-resistant armor material in a cylinder head gasket A cylinder head gasket includes a main gasket body having at least one cylinder opening, a wire sealing ring, and a metal armoring ensheathing the wire sealing ring. The metal armoring has a first annular flange portion extending beyond the cylinder opening in overl... | 07/26/2005 |
| 6918597 | Gasket The invention refers to a gasket (1), the gasket having at least one metal layer (3) and at least one metal ring (5) welded thereto, the metal layer (3) having at least one through-hole (4) and the metal ring (5) being arran... | 07/19/2005 |
| 6789386 | Exhaust gas manifold An exhaust gas manifold for mounting on a cylinder head of an internal combustion engine, composed of at least one cylinder support having bores for evacuating the exhaust gas. The exhaust gas manifold comprises an exhaust gas manifold collector housing (9) f... | 09/14/2004 |
| 6758479 | Cylinder head gasket with different materials In a cylinder head gasket, a base plate forming the gasket is formed of a first metallic material, and a grommet is provided around a hole for a cylinder bore and formed of a second metallic material different from the first metallic material. The grommet and the ba... | 07/06/2004 |
| 6739595 | Self-energizing combustion seal flange An improved combustion gasket is disclosed incorporating a self-energizing combustion seal flange. The flange includes at least one valley that serves to redistribute combustion explosion forces acted upon the gasket during operation of the engine to provide improve... | 05/25/2004 |
| 6719301 | Spring back fire ring A spring back fire ring is provided in a gasket assembly that is used for sealing combustion openings. In addition to the spring back fire ring, the gasket assembly includes a main gasket body and upper and lower gasket layers. The spring back fire ring has first an... | 04/13/2004 |
| 6619666 | Metal gasket assembly A metal gasket assembly comprises a substrate metal sheet having at least one opening, and a peripheral member fitted into the opening along and welded to the periphery thereof. The peripheral member is made of a metal plate having a thickness greater tha... | 09/16/2003 |
| 6386549 | Multiple layer gasket having selectively removable spacer layers 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 manne... | 05/14/2002 |
| 6371489 | Cylinder-head gasket for internal combustion engine This gasket comprises two superimposed similar metal plates, each of which comprises a central main part and a peripheral part which are separated from one another by a slot intended to house a bead of sealing elastomer, the two parts of each plate being ... | 04/16/2002 |
| 6182976 | Metal gasket A metal gasket 10 for use between heads and blocks of an internal combustion engine in which such gasket is composed of a beaded plate 11 and a stopper plate 12 placed one on top of the other. The metal gasket 10 has an opening 13 corresponding to the cyl... | 02/06/2001 |
| 6036194 | Combustion gas seal for an internal combustion engine A combustion seal for sealing high pressure combustion gas within at least one cylinder of an internal combustion engine including a cylinder block, a cylinder head having a groove formed in its bottom face, a cylinder liner having a complementary groove ... | 03/14/2000 |
| 5984317 | Galling resistant gasket A cylinder head gasket of the present invention includes a main gasket body and a metallic generally U-shaped flange which engages the inner periphery of a combustion bore opening formed in the main gasket body. A coating including tetrafluoroethylene and... | 11/16/1999 |
| 5934682 | Head gasket with preflattened wire rings and method of making and using same A head gasket and method for making and using the same is provided wherein the head gasket includes a wire ring which has been preflattened. The preflattened ring facilitates broad load distribution and is preferably used in an internal combustion engine ... | 08/10/1999 |
| 5931475 | Metal laminate gasket with mutual laminating portions A metal laminate gasket of the invention is formed of first and second metal plates and an annular plate. The first metal plate has a base portion, a curved portion extending from the base portion to define a first opening corresponding to a hole of the e... | 08/03/1999 |
| 5921558 | High recovery combustion seal gasket A cylinder head gasket assembly of the present invention includes a main gasket body and a fluid flow opening. A spiral wound component is received within and engages an inner periphery of the fluid flow opening to provide enhanced dynamic recovery and se... | 07/13/1999 |
| 5899462 | Metal laminate gasket with stepped sealing portion A metal laminate gasket of the invention is formed of first, second and third metal plates. The first metal plate includes a curved portion to define a first hole corresponding to a hole of an engine to be sealed, and a flange extending from the curved po... | 05/04/1999 |
| 5895057 | Head gasket assembly for very closely adjacent cylinder bores with stabilized armoring and method of making same A head gasket assembly for an engine with minimal space between adjacent cylinder bores. Armoring including a bridge between adjacent combustion openings is provided with the legs of the combustion openings enclosing wire rings and being welded to each ot... | 04/20/1999 |
| 5873578 | Gasket for internal combustion engine and method for forming same A gasket has a flat body with openings provided for combustion chambers, lubricating fluid passages, engine coolant passages, and studs mounting a cylinder head on an engine block. Each of the combustion chamber openings is bordered by a sealing element d... | 02/23/1999 |
| 5755447 | Metal gasket with shim The invention is directed to a metal gasket for sealing a clearance between a pair of clamping members. The metal gasket is formed of a metallic base plate on which at least one opening is defined. An annular metallic shim is welded on the base plate arou... | 05/26/1998 |
| 5727795 | Single layer or multi-layer metal cylinder head gasket and method of making the same A metallic gasket for use in an internal combustion engine has seals around the gasket openings which are formed by a two-step coining operation plus a folding operation. The gasket has a base plate including a folding portion located between an edge of a... | 03/17/1998 |
| 5683092 | Cylinder head gasket with areas of relatively high rigidity A cylinder head gasket is disposed between a cylinder head and a cylinder block having different coefficients of thermal expansion. The cylinder head gasket has a bore grommet including a cylinder block side portion which is enlarged in a direction away f... | 11/04/1997 |
| 5636850 | Deformable combustion seal ring An annular fire ring comprises an alloy of beryllium copper. Before the alloy is subject to precipitation hardening at elevated temperatures, the ring is placed at an inner periphery of a high temperature opening of a gasket body, wherein the diameter of ... | 06/10/1997 |
| 5505466 | Cylinder head gasket with retaining ring and spring seal A multiple sealing system for an engine gasket utilizes a retaining ring and a spring energized seal disposed within an annular U-shaped flange adjacent a gasket body. The spring energized seal acts as a primary seal against combustion gases under all eng... | 04/09/1996 |
| 5482014 | High output automotive engine gasket assembly and method of making same An automotive head gasket assembly and shim for installation between the head and block of an engine is disclosed. The head gasket includes a main body of a first thickness having a central core and compressible composite facing layers laminated to the su... | 01/09/1996 |
| 5460387 | Metal laminate gasket having sealing mechanism formed of recess and flange A metal laminate gasket of the invention is used for an internal combustion engine having at least one hole to be sealed. The gasket is basically formed of first and second metal plates extending substantially throughout an entire area of the engine. The ... | 10/24/1995 |
