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 |
| 7637278 | Switching valve and respective manufacturing method The present invention relates to a switching valve (1) for controlling a gas flow in a gas line of an internal combustion engine, in particular in a motor vehicle, comprising a line section (2) for installation in the gas line, an actuator drive (3 | 12/29/2009 |
| 7624750 | Flapper valve with mold-in-place bearings A flapper valve and a method of making the same that does not require bearing assembly. More particularly, the flapper valve includes a shaft having one or more flap portions and one or more bearing portions molded in place on the shaft as a unitary structure. The b... | 12/01/2009 |
| 7614416 | Process for producing a throttle-valve housing and a throttle valve The present invention is related to a method for the production of a throttle valve connection piece housing and a throttle valve as molded injection parts. The throttle valve connection piece housing is provided with a throughflow opening which can be sealed by the... | 11/10/2009 |
| 7427057 | Control valve assembly of a carburetor and method of assembly A combustion engine carburetor has a control valve assembly that generally controls flow through a fuel-and-air mixing passage extending through a body of the carburetor. The control valve assembly has at least one valve preferably of a butterfly-type having a shaft... | 09/23/2008 |
| 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 |
| 7275557 | Method for the production of an electronically controlled butterfly valve with an inductive sensor of “contact-free” type for an internal combustion engine A method for the production of a butterfly valve which comprises a valve body housing a valve seat engaged by a butterfly disc keyed on a shaft in order to rotate under the action of an electric motor, the shaft being coupled to an inductive position sensor of the ... | 10/02/2007 |
| 7267139 | Valve device The invention relates to a valve device comprising a valve housing (2) with a first and a second flow channel (3a, 3b), and a first and second damper shaft (8a, 8b), which are rotatable relative to the v... | 09/11/2007 |
| 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 |
| 7147430 | Pneumatic valve control using downstream pressure feedback and an air turbine starter incorporating the same A starter air valve assembly includes a valve body, a flow control valve, a rate control servo mechanism, and a valve actuator. The valve body defines a flow passage having at least an inlet port and an outlet port. The valve is disposed at least partially within th... | 12/12/2006 |
| 7118092 | Method and apparatus for assembling a vane-type valve A vane-type throttle valve assembly including a body having a passage therethrough and a pivotable shaft transverse of the passage and supporting a vane for variably restricting the flow of material through the passage. The shaft is disposed in opposing bores in the... | 10/10/2006 |
| 7100569 | Method of providing shaft biasing lubrication for a short runner valve shaft A one piece slide in place “butterfly” valve plate for a short runner manifold of a vehicle. A method of reducing friction in an anti-chatter device. ... | 09/05/2006 |
| 7080820 | 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... | 07/25/2006 |
| 7066710 | Pneumatic valve control having improved opening characteristics and an air turbine starter incorporating the same A starter air valve assembly includes a valve body, a flow control valve, a rate control servo mechanism, and a valve actuator. The valve body defines a flow passage having at least an inlet port and an outlet port. The valve is disposed at least partially within th... | 06/27/2006 |
| 7063303 | Throttle apparatus having axial displacement restricting structure A throttle shaft, first and second bearings, are inserted and formed in a bore wall part of a throttle body, when the throttle body is formed in the same dies. That is, when the throttle body is formed in a predetermined shape, the throttle shaft, the first and seco... | 06/20/2006 |
| 7047936 | Throttle bodies and methods of manufacturing such throttle bodies A throttle body comprising a main body defining a cylindrical intake air channel and including a valve member movable between an open and a fully closed position. The valve seal surface and a contact surface are configured such that the valve seal surface sealingly ... | 05/23/2006 |
| 6991177 | Multi-valve damper for controlling airflow and method for controlling airflow The present invention relates to a multi-valve damper which divides a section of an airflow duct into at least two airflow sections. The damper has a plug body having a proximal end and a distal end. The plug body is adapted to separate a section of an airflow duct ... | 01/31/2006 |
| 6971632 | Throttle plate wedge A throttle plate assembly with a wedge for limiting air flow upon initial acceleration. ... | 12/06/2005 |
| 6945513 | Throttle valve arrangement The present invention relates to a throttle valve arrangement for closing a through flow in a throttle valve connection piece, including a pivotably actuated throttle valve shaft which is mounted in the opening in a perpendicular position with respect to the longitu... | 09/20/2005 |
| 6918374 | Intake air amount control apparatus for an engine An intake air amount control apparatus for an engine is capable of stabilizing the controllability of a valve (10) as well as reducing the number of component parts required. A coil spring (11) includes a first spring portion (11a) having... | 07/19/2005 |
| 6918401 | Throttle shaft assembly and method of attachment A method and apparatus is provided for the attachment of a throttle shaft to a throttle body. A throttle shaft, a spring, and a cap retainer, are temporarily assembled as a throttle shaft subassembly. A set of locking members extend from the cap retainer to engage a... | 07/19/2005 |
| 6902143 | Manual override assembly for pilot-operated valve In a pilot-operated valve having a valve body, including inlet and outlet portions controllably interconnected via a main piston bore portion; a main piston movable within the main piston bore; an operator portion; an operator assembly including a movable plunger as... | 06/07/2005 |
| 6901942 | Butterfly valve with injection-molded shaft The invention relates to a method for producing a throttle valve unit for installation into a flow conduit through which a gas flow passes. A flap shaft of the throttle valve unit is affixed to a stamped insert part inside a fastening region. The stamped insert part... | 06/07/2005 |
| 6854711 | Assembly consisting of a housing and a flap unit An assembly consists of a housing and a flap unit. The housing and the flap unit are each one-piece injection-molded parts and the flap unit is mounted in the housing. The flap unit has at least two flap elements and a connection section arranged between each two fl... | 02/15/2005 |
| 6840260 | Method of manufacturing a throttle valve connection piece and a housing therefor The present invention relates to a method for producing a housing of a valve connection piece and to a valve connection piece. The housing includes a throughflow opening wherein a valve is pivotably arranged around a pivoting axis extending in a perpendicular positi... | 01/11/2005 |
| 6698445 | Fluid flow control damper assembly A fluid flow control damper assembly having a damper vane and a piston actuator is relatively easy to install when the outer surface of a duct is inaccessible. The piston actuator includes a powder metal piston, lacking an elastomeric (for example, rubber... | 03/02/2004 |
| 6684898 | Dual actuator air turbine starter valve An air turbine starter valve able to open despite being frozen shut. Dual actuators apply sufficient torque upon an air turbine starter valve to overcome obstructions presented by frozen moisture. By applying separate and generally-aligned torques, the ac... | 02/03/2004 |
| 6626422 | Control valve A control valve including a plastic injection-molded wing body and a shaft having embossed projections thereon, said shaft being positively connected to said wing body, wherein the wing body has, in the direction of an axis perpendicular to the axis of ro... | 09/30/2003 |
| 6612325 | Control valve assembly of valve assembly-injection-molded control valves or modules A control valve assembly comprising at least two control valves which may be used, for example, to throttle the air intake of an internal combustion engine. The assembly is provided with a centrally arranged, force-transmitting shaft (32). The control val... | 09/02/2003 |
| 6568417 | Throttle valve assembly A throttle valve assembly for a deposition chamber or the like is disclosed. The throttle valve assembly comprises a shaft including a first portion and second portion. At least one throttle vane or plate is coupled to the first portion of the shaft and a... | 05/27/2003 |
| 6564819 | Fluid flow control damper assembly A fluid flow control damper assembly having a damper vane and a piston actuator is relatively easy to install when the outer surface of a duct is inaccessible. The piston actuator includes a powder metal piston, lacking an elastomeric (for example, rubber... | 05/20/2003 |
| 6520198 | Structure and method for mounting damper A damper attaching structure which enables a damper provided with a thin rotational shaft to be assembled inside a casing or the like by employing an opening formed in the casing, is obtained by providing a concave groove which is formed in the inner surf... | 02/18/2003 |
| 6497245 | Intake air controller for internal combustion engine and manufacturing the same A throttle assembly including a bore wall to which a seal member is previously attached is inserted into a key-like slot of an intake air passage body, and flanges are fixed to each other by screws. A bore inner wall of the bore wall is placed to correspo... | 12/24/2002 |
| 6439255 | Valve flapper with dynamic circumference seal A valve assembly including a body defining a passageway having a longitudinal axis, a rotatable shaft extending into the passageway, generally perpendicular to the axis of the passageway, and a flapper secured to the shaft within the passageway and movabl... | 08/27/2002 |
| 6431142 | Throttle blade having snap-fit wedge A throttle body (12) has a bore (14) through which intake flow passes. A throttle blade (18) is disposed within the bore to selectively restrict the flow. The blade has through-holes (62) extending between its opposite faces (24, 26). A wedge (28) has a b... | 08/13/2002 |
| 6367773 | Throttle valve control device A throttle valve control device provided with a throttle valve 3 formed in an elliptic shape such that a major axis is a center line 3c connecting mounting holes 3a and 3b for fixing the valve 3 to a throttle shaft 2. A clearance A is provided between an ... | 04/09/2002 |
| 6296007 | Heated valve for operation in freezing conditions A fluid control valve which comprises a valve body structure having a fluid flow passage therethrough and a first sealing surface means and a closure structure for controlling the fluid flow through the passage with the closure structure having a second s... | 10/02/2001 |
| 6273119 | Exhaust control valve and method of manufacturing same A method of manufacturing an exhaust control valve includes casting first and second subhousings as separate pieces and machining smooth the inner faces of both. Each subhousing has a stem portion and a flow portion. Each flow portion defines a cylindrica... | 08/14/2001 |
| 6263898 | Throttle shaft with return spring and spring cover and method of assembling the same A throttle shaft assembly includes throttle shaft with a cam and shaft portion the shaft portion configured to be inserted in the throttle body, a throttle return spring that is coiled around the throttle shaft with two ends one end engaged to the cam por... | 07/24/2001 |
| 6213141 | 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 ell... | 04/10/2001 |
| 5941266 | Angle entry rotary valve Straight line flow rotary valves with the valve member flow passage (21) turned away from the pipeline flow axis (22), to dispose the valve internals to an access port (50) located downstream on the same flow axis of the valve member (11). Another embodim... | 08/24/1999 |
