Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 8186690 | Metal gasket A metal gasket includes at least one structural plate having a sealing bore and bolt holes located around the seal bore. An inner bead is formed on the at least one structural plate to surround the sealing bore. The inner bead has first neighboring portions near the... | 05/29/2012 |
| 7597329 | Metal laminated type of cylinder head gasket with asymmetrical bead A metal laminate cylinder head gasket includes first and second metal plates laminated together. The first metal plate has a combustion hole, and an asymmetrical bead formed around the combustion hole. The asymmetrical bead has a large radius portion with a width (a... | 10/06/2009 |
| 7431306 | Metallic gasket A metallic gasket including a base plate having a convex metal bead formed, by bending the base plate, between a combustion chamber opening and on the outer periphery portion of the base plate, and a first thickness-increased portion formed thicker than the remainin... | 10/07/2008 |
| 7401790 | Metal gasket with rigid seal A seal joint for sealing a fluid is particularly adapted for use in extreme pressure and/or temperature environments. The seal joint includes a first member having a first sealing surface and a first opening therein, and a second member having a second sealing surfa... | 07/22/2008 |
| 7367566 | Metal gasket A metal gasket for sealing multiple cylinder bores includes one or more metal substrates, main sealing beads around each of the cylinder bores, and one or more sub-beads. The main sealing beads include meandering portions located in a sealing portion between the cyl... | 05/06/2008 |
| 7360768 | Intake gasket An intake gasket to be inserted between a cylinder head and a manifold, comprising an intermediate rib member with a three-layer structure formed from a central thin metal plate and rubber layers provided on first and second sides of the central thin metal plate, fi... | 04/22/2008 |
| 7334800 | Seal for a gas turbine engine having improved flexibility A seal extending between adjacent slots of a gas turbine engine is disclosed. The seal comprises a plurality of generally planar members fixed together along a central axis. The outer member further comprises rounded ends that encompass the second and plurality of t... | 02/26/2008 |
| 7311309 | Cylinder head gasket A cylinder head gasket for an internal combustion engine is formed of a first metal plate extending substantially throughout an entire area of the gasket. The metal plate includes a base portion, at least one hole corresponding to a cylinder bore of the engine, a cu... | 12/25/2007 |
| 7311310 | Cylinder head gasket In order to achieve good sealing in both a cold and a warm engine by sealing features which are as simple as possible, an at least substantially metallic cylinder head gasket comprises a gasket plate with only one layer of sheet steel extending over the entire gaske... | 12/25/2007 |
| 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 |
| 7287757 | Optimized wave bead with full bead design A gasket having a layer including at least one combustion opening and a wave area located on the layer is disclosed. The wave area includes a first wave and a second wave. The first wave is proximate the combustion opening. A flat portion near the second wave includ... | 10/30/2007 |
| 7287758 | Cylinder head gasket with an oil drainback tube fastener A gasket includes at least one gasket layer. The gasket layer has a push rod or cam timing chain opening formed therein. A clip is secured to the gasket layer and positioned within the push rod or timing chain opening. The clip selectively receives and positions an ... | 10/30/2007 |
| 7234705 | Sealing gasket with flexible stopper A sealing gasket assembly includes one or more carriers each having an offset flexible stopper portion spaced laterally outwardly away from an offset inner sealing portion that is adjacent an opening or other area requiring sealing between mating members adapted to ... | 06/26/2007 |
| 7234433 | Cylinder sleeve support for an internal combustion engine The disclosed multi-cylinder, poppet-valved engine, has replacement cylinder sleeves larger than the original sleeves, and laterally supported near their upper ends by an aluminum alloy plate having a continuous flange or boss projecting into the cylinder block. The... | 06/26/2007 |
| 7225786 | Oil drain passage structure of cylinder block and core structure thereof The present invention provides an apparatus for achieving precise manufacturing of drain passages such as those used for oil return and blow-by gas discharge in a cylinder block. Grid-like oil drain passage and corresponding core structures are disclosed herein; the... | 06/05/2007 |
| 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 |
| 7213813 | Metal gasket A metal gasket with a hole to be sealed includes first and second metal base plates laminated together. The first metal base plate has a first main bead around the hole, and a first outer sub-bead section smaller than the first main bead and provided outside the fir... | 05/08/2007 |
| 7185893 | Metallic flat seal and method for the production thereof The present invention concerns a metallic flat gasket with at least one sealing layer with at least one port, with a sensor layer corresponding to the ports being deposited on at least one surface of the sealing layer. This sensor layer consists of a compression pro... | 03/06/2007 |
| 7178307 | Reinforced shelf structure and method A composite corrugated panel is provided comprising a first corrugated panel defining a first corrugation height joined to a second corrugated panel defining a second corrugation height, the joined panels defining a cross sectional thickness that is preferably less ... | 02/20/2007 |
| 7159870 | Sealing at the juncture of three members A three-prong integrally formed resilient seal for sealing the juncture of three gasketed members. The seal has a common region having an embedded strain distributor of stiffer material than the remainder of the seal which is integrally formed, preferably by insert ... | 01/09/2007 |
| 7147231 | Seal feature to prevent bending A gasket for statically sealing between two members is disclosed. The gasket includes a first generally planar portion having an inner perimeter and an exterior perimeter, and having a first surface and a second surface on an opposite side from the first surface. A ... | 12/12/2006 |
| 7137631 | Cylinder head gasket 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... | 11/21/2006 |
| 7135519 | Gasket coating containing chemically exfoliated vermiculite A sealing-enhancing coating for a gasket or a portion of a gasket includes flaky particles of chemically exfoliated vermiculite, at least 90% by weight of the particles having a thickness of no more than 30 microns, and no dimension greater than 1 mm. The particles ... | 11/14/2006 |
| 7131649 | Metal gasket A metal gasket is formed by first and second metal base plates. The first metal base plate has a first main bead, and first outer and inner sub-bead sections formed outside and inside the first main bead and projecting outwardly in a direction opposite to the first ... | 11/07/2006 |
| 7108268 | Metal laminate gasket A metal laminate gasket includes two surface plates, and an intermediate plate. The second surface plate has a folded-back piece folded back around a sealing hole and disposed on a first bead of the first surface plate surrounding the sealing hole. The first plate h... | 09/19/2006 |
| 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 |
| 7073795 | Metallic gasket A metallic gasket having a first seal line SL1 arranged in a manner to encircle the peripheral edge of an exhaust gas hole 3, a second seal line SL2 arranged along the outer peripheral edge of a base plate 2, and full beads 6, 7 fo... | 07/11/2006 |
| 7059292 | Sealing structure for divided type cylinder block A cylinder block includes an inner block member having a cylinder liner portion and an outer block member having a cylinder outer wall portion. With the inner and outer block members assembled together, a water jacket is defined between the outer and inner circumfer... | 06/13/2006 |
| 7055830 | Metal laminate gasket A metal laminate gasket includes a first plate, intermediate plate and a second plate laminated together. The first plate has a curved portion for defining a hole to be sealed, and a flange extending outwardly from the curved portion. The intermediate plate is situa... | 06/06/2006 |
| 7048279 | Laminated carrier gasket with off-set elastomeric sealing A gasket assembly is formed at least two carrier layers laminated together and formed with at least one opening through the carrier corresponding to openings across a parting plane of two members to be sealed. an elastomeric seal is molded to the carrier to define s... | 05/23/2006 |
| 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 |
| 7014194 | Cylinder head gasket A cylinder head gasket for an internal combustion engine is basically formed by first and second metal plates laminated together. The first metal plate includes a base portion, a first hole to be sealed formed in the base portion, a curved portion extending from the... | 03/21/2006 |
| 7014193 | Gasket with selectively positioned seal enhancement zones 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 lo... | 03/21/2006 |
| 7011313 | Metal gasket A metallic gasket including a base plate having a convex metal bead formed, by bending the base plate, between a combustion chamber opening and on the outer periphery portion of the base plate, and a first thickness-increased portion formed thicker than the remainin... | 03/14/2006 |
| 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 |
| 6997463 | Cylinder head gasket 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 a single metal plate provided with beads around cylinder bores. The bead has a portion formed in a ... | 02/14/2006 |
| 6997462 | Cylinder head gasket A cylinder head gasket is provided for an engine with low rigidity and a high maximum pressure. In the cylinder head gasket, it is possible to enhance the secondary sealing without greatly affecting the primary sealing. The cylinder head gasket is formed of a first ... | 02/14/2006 |
| 6994353 | Metal gasket A gasket is interposed at a joining portion between two members. The gasket includes a gasket base plate having an opening through which fluid flows and a plurality of annular beads formed in a wave shape over a predetermined area extending outwardly from a hole edg... | 02/07/2006 |
