Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 8162288 | Composite valve A valve utilizes a composite two-piece housing to provide a low cost, high strength, light weight alternative to conventional metal and plastic valves adaptable for corrosive and non-corrosive environments. The valve includes a valve body defined by a first body hal... | 04/24/2012 |
| 8146887 | Damper mechanism A damper mechanism comprising a single piece damper blade and a damper seal. The damper blade having a tie-down tab pair, with the tie-down tab pair positioned along a periphery edge of the damper blade for coupling a damper seal with the damper blade. The damper se... | 04/03/2012 |
| 7984892 | Low friction butterfly ring A butterfly valve for controlling the flow of fluid within a bore, including a butterfly and at least one ring extending at least one of substantially and completely around a perimeter of the butterfly and adapted to develop an expansion force in the radial directio... | 07/26/2011 |
| 7775505 | Butterfly valve having improved sealing between a shaft seal part and a valve disc A butterfly valve includes a seat ring fitted to an inner peripheral surface of a hollow cylindrical valve body, and a discal valve disc in which a shaft is mounted. The shaft is rotatably mounted in through-holes of the seat ring. An annular protrusion having a fir... | 08/17/2010 |
| 7758017 | Butterfly valves and construction thereof Various exemplary embodiments of a butterfly-type valve that provide a reduction in the unseating torque are disclosed that include a valve body defining a flow passage therein, and a closure disc disposed in the flow passage that has an axis of rotation about which... | 07/20/2010 |
| 7703746 | Ground-based power generator with ball-roller bearing butterfly valve A hot gas valving system for a ground-based power generation system includes a gas flow conduit having a wall and defining a path for fluid flow and a butterfly valve located in the wall and transversely across the path for fluid flow. The butterfly valve includes a... | 04/27/2010 |
| 7637478 | Seat ring with insert for butterfly valve, and manufacturing method thereof A seat ring has an insert for a butterfly valve configured so that an annular insert is fitted on the outer peripheral surface of the seat part in which there is provided a valve body fitting annular groove having side wall parts on both the upstream side and downst... | 12/29/2009 |
| 7621502 | Minimal-compression butterfly valve A butterfly-type valve for controlling toner material flow to a toner container, including, a valve plate which is pivotally disposed in an elongate flow path defined by a passage way, wherein the valve plate is pivotal from a closed position which substantially clo... | 11/24/2009 |
| 7416164 | Elliptical sealing surface for butterfly valve A reduced component wear valve is comprised of a valve body having a passage therethrough and a disc attached to a rotatable shafts. The disc is utilized with a seal forming a gap between the disc and the seal proximate to the rotational axis of the disc. When the d... | 08/26/2008 |
| 7401763 | Valve seal and method of installing a valve seal An assembly comprises a valve, a valve seal, and a piece of epoxy. The valve comprises a valve gate, a housing, and a plurality of screws. The housing comprises a fluid passageway and a groove that extends into the housing from the fluid passageway. Each of the scre... | 07/22/2008 |
| 7392826 | Valve device and multiport regulating assembly comprising a plurality of such devices The present invention relates to a valve device for regulating a fluid, particularly a gaseous fluid, in a conduit portion, comprising a valve body fixed to a support spindle extending transversely into said portion and mounted with the ability to rotate therein, sa... | 07/01/2008 |
| 7367358 | Medical fluid delivery system and method relating to the same A medical fluid delivery system for the use in the delivery of medical fluids. The medical fluid delivery system may include a pumping system, a disposable medical fluid line set and a valve operating system. The disposable tubing line set may include valves adapted... | 05/06/2008 |
| 7357372 | Seat ring for butterfly valve A seat ring having a hollow cylindrical body portion with a flange surface as each of its side surfaces. The cylindrical body portion has stem through-holes above and below along a stem axial direction X and a stem penetrates said through-holes. An outer circumferen... | 04/15/2008 |
| 7353801 | Valve regulating device and intake manifold comprising at least one such device A valve regulating device intended to regulate the circulation of a fluid in the region of an opening, said device consisting of a pivoting valve body, of an annular support body integrating two opposing bearings mounting said valve body in a rotational manner, and ... | 04/08/2008 |
| 7337609 | Diesel exhaust system variable backpressure muffler The invention concerns diesel particulate filter regeneration in an exhaust system of a vehicle having a diesel engine. The particulate filter regeneration is selectively accomplished by actuating a particulate filter backpressure valve located downstream of the die... | 03/04/2008 |
| 7334628 | Flow control device for gas stream A control device for gas is provided with a pivotable flap mounted between side walls of a guide duct. A receiving pocket for the insertion of a drive element (motor) is provided on one of the side walls and is oriented in such a way that, after insertion, the outpu... | 02/26/2008 |
| 7328700 | Respiratory system and method of use A respiratory protection circuit of the type having an air flow regulator disposed in an air flow path between an air supply and a respirator is improved by including an air flow splitter and a bi-directional valve. The air flow splitter is disposed in the air flow ... | 02/12/2008 |
| 7325569 | Butterfly valve with integral split flapper relief valve A valve is provided that includes a valve housing, a valve element, and a flapper. The valve housing has a passage. The valve element is rotationally mounted in the passage and moveable between an open position and a closed position. Additionally, the valve element ... | 02/05/2008 |
| 7296585 | Elliptical sealing surface for butterfly valve A reduced component wear valve is comprised of a valve body having a passage therethrough and a disc attached to a rotatable shaft. The disc is utilized with a seal forming a gap between the disc and the seal proximate to the rotational axis of the disc. When the di... | 11/20/2007 |
| 7270101 | Intake manifold shaft and blade attachment An arrangement for attaching a blade to a shaft for use in intake manifolds, uses fasteners that create a load on the blade. Fasteners are inserted through fastener holes in the blade and through shaft holes in the shaft. Once inserted outward pressure by the fasten... | 09/18/2007 |
| 7266891 | Method for sealing a throttle valve housing The present invention is a method where a one-piece throttle valve is fastened to a throttle valve shaft in a first step. In another step, at least one elastic compensating element is placed onto the throttle valve. In another step, the elastic compensating element ... | 09/11/2007 |
| 7264221 | Butterfly valve assembly with improved flow characteristics A control valve assembly that utilizes a butterfly valve having a valve body and a valve disc movable between a seated position and an open position. The control valve assembly includes a flow insert positioned along the interior of the valve body and generally alig... | 09/04/2007 |
| 7261276 | Flow regulator valve An apparatus such as a multiple orifice valve (MOV) for controlling a flow of pressurized fluid. A housing directs the flow from an inlet to an outlet and supports an interior stationary surface. A moveable surface selectively impedes the flow and is disposed in fac... | 08/28/2007 |
| 7246487 | Exhaust-heat recovery system for engine An exhaust-heat recovery system includes a catalytic converter, an exhaust heat exchanger, an air conditioner and an engine controller. The catalytic converter is such that exhaust discharged from an engine passes therethrough and combustible components in the exhau... | 07/24/2007 |
| 7243901 | Rotary valve apparatus and associated methods A rotary valve is provided with an elliptical valve disc that seats against a seal element operatively mounted in an elliptically shaped depression formed in the rigid annular portion of a seal cartridge structure carried by the valve body. Due to the elliptical sha... | 07/17/2007 |
| 7243903 | Valve diaphragm with a compression restraining ring, and valve including same A valve has a body, a bonnet, an actuator mechanism, and a flexible diaphragm adapted to be positioned between the bonnet and the body. The flexible diaphragm has a central portion and a peripheral portion, and the central portion is covered with a thin alloy layer.... | 07/17/2007 |
| 7237761 | Valve having double wound lamellar ring The present invention is directed to a valve which includes a housing having a valve seat for a flap that is rotationally mounted on a drive shaft. A double wound lamellar ring is arranged outside and around the flap in a peripheral groove of the flap. The invention... | 07/03/2007 |
| 7234444 | Emission gas recycling equipment having butterfly valve Emission gas recycling equipment includes a passage for recycling a part of an emission gas and a control valve for controlling an amount of the part of the emission gas. The control valve includes: a housing having a pipe portion; a butterfly valve accommodated in ... | 06/26/2007 |
| 7225825 | Valve seal and method of installing a valve seal An assembly comprises a valve, a valve seal, and a piece of epoxy. The valve comprises a valve gate, a housing, and a plurality of screws. The housing comprises a fluid passageway and a groove that extends into the housing from the fluid passageway. Each of the scre... | 06/05/2007 |
| 7207545 | Throttle bodies with throttle valves actuated by motors A throttle body (1) includes a throttle casing (2) and a motor casing (8). The throttle casing has a first main body (3) and a throttle valve (4) disposed within the first main body. The first main body is made of resin. The motor ... | 04/24/2007 |
| 7198252 | Housing flange unit The present invention is directed to a housing flange unit which includes a housing flange wherein a butterfly valve shaft is rotatably mounted in a perpendicular position in relation to the longitudinal axis of the housing flange and includes a butterfly valve whic... | 04/03/2007 |
| 7185878 | Control device for the throughput in a conduit portion or similar A control device for the throughput in a conduit portion a is provided. The device comprises a valve or a flap composed of a body mounted on a rotary support shaft and being displaceable between a position of maximum closure and a position of minimum closure by pivo... | 03/06/2007 |
| 7172174 | Laser welding method, laser welding structure, and throttle valve device A throttle valve and a throttle shaft are welded to each other. Here, the throttle valve is made of resin material having a transmission property for a laser beam and includes a convex portion on a surface thereof irradiated by the laser beam. By contrast, the throt... | 02/06/2007 |
| 7159844 | Two-part flap valve A valve having a housing with a valve seat for a two-piece flap which is rotatably mounted on a drive shaft. An annular piston seal and an adjacent cover disk are disposed between the first part and the second part of the two-piece flap so as to revolve there-around... | 01/09/2007 |
| 7114486 | Subunit of a throttle valve housing The dividing unit comprises a metal throttle valve shaft and of a plastic throttle valve. The throttle valve shaft is mounted so that it centrally passes through the throttle valve and the maximum acute angle alpha between the longitudinal axis of the throttle valve... | 10/03/2006 |
| 7107678 | Forming method of throttle apparatus for internal combustion engine A throttle valve and the throttle body are formed substantially simultaneously in the same dies. The melted resin is injected in to a cavity through a pair of valve gates. The valve gates are symmetrically located with respect to the throttle valve shaft. A deformat... | 09/19/2006 |
| 7107679 | Forming method of throttle apparatus for internal combustion engine A throttle valve and the throttle body are formed substantially simultaneously in the same dies. When a movable die moves away from a fixed die, a body ejector pin, a valve ejector pin, and a motor housing ejector pin simultaneously push a bore wall of the throttle ... | 09/19/2006 |
| 7089663 | Forming method of throttle apparatus for internal combustion engine A throttle valve and the throttle body are formed substantially simultaneously in the same dies. The melted resin is injected in to a cavity through a pair of valve gates. The gas evaporated from a melted resin and remaining air in the cavity are expelled from the c... | 08/15/2006 |
| 7090193 | Butterfly valve A portion of the one valve rod which extends outward is pivotally supported, the valve shaft cylindrical portion which is connected to the valve rod shaft supporting portion is made of material different from that of the valve body, a slanting surface is formed betw... | 08/15/2006 |
| 7090774 | Method for packed column separations and purifications The invention encompasses a method of packing and unpacking a column chamber. A mixture of a fluid and a matrix material are introduced through a column chamber inlet so that the matrix material is packed within a column chamber to form a packed column. The column c... | 08/15/2006 |
