...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 8109521 | Metal laminate cylinder head gasket A metal laminate cylinder head gasket is formed by a plurality of metal plates laminated together, and a misalignment preventing portion for preventing misalignment of the laminated metal plates, formed in the metal plates. The misalignment preventing portion includ... | 02/07/2012 |
| 7980563 | Flat gasket A flat gasket for sealing a seal gap between engine component sealing faces wherein the flat gasket comprises at least one first and second gasket layer adjacent to the first gasket layer, wherein at least one elastomeric sealing element is disposed at the fi... | 07/19/2011 |
| 7914008 | Metal gasket and mis-assembly detection method of metal gasket A metal gasket includes at least three metal plates including first, second and third metal plates laminated in this order from a top to form the metal gasket. Identification marks are provided on at least second and third metal plates in a position not to overlap w... | 03/29/2011 |
| 7900936 | Metal gasket A metal gasket includes a first metal plate having positioning holes, and a second metal plate laminated under the first metal plate. The second metal plate has positioning projections facing corresponding positioning holes and fitted into the facing corresponding p... | 03/08/2011 |
| 7753379 | Gasket with transition sealing feature A gasket can include a body adapted to form a seal in an engagement region between two members. A first sealing portion can be formed in the body and define a first plane. A second sealing portion can be formed in the body and occupy a space outside of the first pla... | 07/13/2010 |
| 7735835 | Sealing arrangement In a sealing arrangement, in particular for the connection of a manifold to a cylinder head of an internal combustion engine, a flat support (1, 3) has at least one sealing element in the form of a ring element (17) that forms a mold seal. The support ... | 06/15/2010 |
| 7703775 | Metal gasket for cylinder head A metal gasket for a cylinder head has a lamination of plates. The gasket includes two base metal plates each of which includes cylinder holes, circumferential beads formed around the peripheries of individual cylinder holes, cooling water holes formed outside the p... | 04/27/2010 |
| 7588252 | Gasket A metal laminate gasket is formed of at least three metal plates, i.e. first to third metal plates assembled together. A connecting portion is formed for partially connecting the first and second metal plates. The third metal plate has an opening located at a positi... | 09/15/2009 |
| 7438242 | Electromagnetically actuated fuel injector A fuel injector having an injection nozzle; an injection valve having a movable pin for regulating fuel flow through the injection nozzle; an electromagnetic actuator for moving the pin between a closed position and an open position respectively closing and opening ... | 10/21/2008 |
| 7392738 | Locking device for silicone packings of household bean milk and bean curd makers Locking device for silicone packings of household bean milk and bean curd makers, that firmly attaches a silicone packing in a predetermined position in a bean milk and bean curd maker, thus preventing the silicone packing from being undesirably dislodged from its p... | 07/01/2008 |
| 7377521 | Process for fabricating a metallic sheet with at least one integrated raised surface zone for a compressed metallic gasket, particularly a cylinder head gasket, and sheet thus obtained A process for fabricating a metallic sheet containing at least one raised surface zone. The process including the steps of making at least one cutout (20) in said metallic sheet (10) to obtain at least one flap (22), subjecting the said at least... | 05/27/2008 |
| 7374177 | Enhanced multilayer metal gasket A multilayer metal gasket, such as a multilayer steel head gasket, for an internal combustion engine has upper and lower functional layers and at least one intermediate layer. At least one of these layers has a circumferential compression control feature in the form... | 05/20/2008 |
| 7325809 | Seal kit for vehicle air conditioning system and associated methods A seal kit for vehicle air conditioning systems and associated methods are provided. The seal kit includes a container and a set of a plurality of retrofit seals positioned in the container and adapted to retrofit a set of a plurality of existing seals of any one pr... | 02/05/2008 |
| 7316401 | Modular gasket A static gasket assembly having a grid-like carrier (10, 10′) formed as a mesh of overlapping strands. Openings (16-22) are created strategically in the carrier (10, 10′) with the severed ends of the strands forming cantilever stems (... | 01/08/2008 |
| 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 |
| 7306236 | Cylinder head gasket A metal laminate cylinder head gasket has a first metal plate having a first notched portion, a second metal plate having a folded projection extending therefrom, and a middle metal plate having, adjacent to the first notched portion, a second notched portion. The m... | 12/11/2007 |
| 7306235 | Gasket assembly having isolated compression limiting device A manifold gasket includes a carrier frame with a plurality of media-conveying openings corresponding to openings communicating between two parts to be clamped, such as an intake manifold and a cylinder head. Elastomeric sealing material is molded to the carrier fra... | 12/11/2007 |
| 7302925 | Manifold gasket having pushrod guide A manifold gasket assembly includes a steel carrier fabricated with a plurality of air intake openings. Rubber material is molded to the carrier body to provide a seal about the openings when the gasket assembly is clamped between a cylinder head and intake manifold... | 12/04/2007 |
| 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 |
| 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 |
| 7278639 | Edge coated gaskets and method of making same An edge coated gasket includes a base sheet made of compressible gasket material and having opposed faces and an interior edge surrounding and defining an aperture. An edge coating of polymer or other material is disposed on and seals the interior edge of the base s... | 10/09/2007 |
| 7275513 | Engine cover An engine cover includes an installation member, a cover body, and an installed member. The installation member is disposed on an engine. One of the installation member and the installed member includes a leg, and a head, and the other one of them includes a framed ... | 10/02/2007 |
| 7273128 | Vibration proofing heat shield plate A vibration proofing heat shield plate fixed such as to cover at least a part of a heat source while forming a gap with respect to a surface of the heat source is provided with a vibration proofing heat shield plate main body portion, a collar member positioned at a... | 09/25/2007 |
| 7237806 | Expansion seal A hot gas seal for a conduit penetrating the wall(s) of a vessel such as a heat recovery steam generator unit. The seal includes three serially-arranged, independent insulation segments or pillows. The pillow adjacent the vessel casing and the center pillow employ m... | 07/03/2007 |
| 7234706 | Sealing system for multiple fluids A seal (301) has a first surface capable of contacting a valve cover (101) over a first fluid while a second surface, opposed to the first surface, is capable of contacting a seal seat (303). The seal (301) also has a third surface capabl... | 06/26/2007 |
| 7229516 | Foam bodied gasket and gasket tape and method of making and using the same A novel gasket material. The gasket material has a foam core. The foam core is at least partially saturated with a curable polyurethane mix. ... | 06/12/2007 |
| 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 |
| 7207572 | Gasket A gasket includes a first plate formed of a plurality of first plate pieces. Each plate piece has at least one combustion chamber hole therein, and a device for connecting the first plate pieces together. The first plate pieces are arranged such that the first combu... | 04/24/2007 |
| 7182058 | Exhaust manifold gasket A multi-use gasket assembly includes at least two lobes each having a fluid-conveying opening with an associated axis. Four mounting holes are formed in each of the lobes about the openings. The gasket has symmetry across a plane of symmetry containing the axes of t... | 02/27/2007 |
| 7175183 | Arrangement for the gas-tight fixing of an inlet manifold with a connector flange to the cylinder head of an internal combustion engine 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... | 02/13/2007 |
| 7172216 | Stabilizer pad for vehicles A stabilizer pad apparatus including a metal frame for attachment to a stabilizer arm and a resilient pad supported in the pocket of the frame and including a clamping plate to hold the resilient pad in the pocket. The metal frame has sidewalls forming a pocket for ... | 02/06/2007 |
| 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 |
| 7143955 | Fuel injection device for an internal combustion engine A fuel injection apparatus having at least one solenoid valve for controlling the fuel injection that is contained in a housing part and a solenoid assembly having a magnetic coil and a magnet armature inserted into a recess of the housing part. A cover piece that c... | 12/05/2006 |
| 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 |
| 7128322 | Light colored cylinder head gasket and method of producing 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 prefer... | 10/31/2006 |
| 7114254 | Metal plate gasket A metal gasket assembly has a gasket plate and an annular grommet. The gasket plate is formed with an opening having opposing surfaces adjacent the opening to define a predetermined fixed thickness of a plate. The annular grommet has an elastically deformable U-shap... | 10/03/2006 |
| 7096838 | Reversible four cycle internal combustion engine A reversible four cycle internal combustion engine. A crankshaft is rotatably mounted in a block and a piston is operatively mounted to a crankshaft via a connecting rod. A follower wheel traverses a cam as the cam rotates with the crankshaft, and in doing so, cause... | 08/29/2006 |
| 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 |
| 7073227 | Bush A bush for holding first and second members includes a shaft portion having two ends, and a flange integrally formed on one of the two ends of the shaft portion to extend radially outwardly therefrom. The flange has at least one first pressing portion capable of def... | 07/11/2006 |