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| Number | Title | Issue Date |
| 8132783 | Dynamic orifice valve apparatus and method In a fluid transmission line, a valve comprising a housing that establishes a lumen for transmission of a fluid through said valve; a drive mechanism and a drive gear mounted in said housing to be selectively driven in a first or second rotational direction by said ... | 03/13/2012 |
| 7648120 | Compliant iris flow control system An iris arrangement has first and second annular carrier elements annular elements coaxially arranged and circumferentially interlocked with one another so as to be independently rotatable. A plurality of iris elements each have a first compliant beam element couple... | 01/19/2010 |
| 7431638 | Air passageway opening/closing device An air passageway opening/closing device provided with a plurality of sheet members provided with openings and passageway blocking parts located at the two sides of these openings, wherein the lengths in a direction of door movement of the openings differ by predete... | 10/07/2008 |
| 7413616 | Active rinse shield for electrofill chemical bath and method of use An active rinse shield designed to protect electrofill chemical baths from excessive dilution during rinse sprays on the semiconductor wafer. The shield uses overlapping blades to cover the bath, making a physical barrier between the bath chemistry and the wafer rin... | 08/19/2008 |
| 7302967 | Reverse flow preventing device and electronic apparatus A reverse flow preventing device arranged in a flow path of fluid formed by a fan and an electronic apparatus equipped with the same. The reverse flow preventing device has a frame, a plurality of support shafts arranged about the center of the frame and mounted on ... | 12/04/2007 |
| 7246788 | Roller belt cassette for use in a control device The invention relates to a roller belt cassette for use in a control device (1) serving to control airflows in motor vehicles, comprised of a roller belt subassembly having a roller louver, which is formed by a roller belt (5), and at least two shafts ... | 07/24/2007 |
| 7246637 | Balanced valve A balanced valve for controlling the flow of fluids in conduits, the valve comprising: (a) a casing formed of sidewalls and a casing top and bottom, defining an interior; (b) a fluid inlet in a sidewall of the casing and a fluid outlet in an opposite sidewall of sai... | 07/24/2007 |
| 7219651 | Throttle valve A throttle valve for adjusting an amount of intake air to an internal combustion engine includes throttle shafts disposed in an intake air passage perpendicularly across the longitudinal axis of the air passage, and first and second valve members mounted on the thro... | 05/22/2007 |
| 7147000 | Covering device for drain A covering device for a drain includes a first cover and a second cover. The first cover defines a plurality of openings. The second cover defines a plurality of openings corresponding to the openings of the first cover. The second cover is rotationally connected to... | 12/12/2006 |
| 7097421 | Vernier duct blocker A vernier duct blocker comprising a plurality of vanes each having a width and comprising a forward portion and an aft portion defining a plurality of gas paths each of the plurality of vanes being separated by a plurality of widths, and a rotatably movable ring int... | 08/29/2006 |
| 7082726 | Butterfly valve for skylight A valve for selectively blocking the light passageway of a skylight includes a cylindrical shroud and first and second semicircular butterfly valve elements that pivot on respective axles within the shroud to selectively block the skylight. The axles can ride on a c... | 08/01/2006 |
| 7069919 | Method and apparatus for controlling the ratio of ambient air to recirculated gases in an internal combustion engine A method and apparatus for controlling the ratio of ambient air to recirculated gases in an internal combustion engine, wherein an gas injector includes a intake air conduit defining a ambient air flow path, an actuator connected to the intake air conduit, a recircu... | 07/04/2006 |
| 7021604 | Iris valve for control of bulk solids An iris valve for controlling the flow of bulk solid materials includes a flexible cylindrical sleeve, a control ring, and a polymeric isolator disc, all sandwiched between upper and lower body members. Rotating the control ring twists the flexible sleeve in an iris... | 04/04/2006 |
| 7013815 | Adjustable air foils for balancing pulverized coal flow at a coal pipe splitter junction An adjustable device installed at the inlet of conventional junctions/splitters (116) for on-line control of the distribution of coal among the outlet pipes is herein disclosed. The device includes a plurality of wake inducing airfoils (60) each positi... | 03/21/2006 |
| 7011292 | Bi-leaved valve apparatus Bi-leaved valve apparatus for controlling bulk material flow from a bulk material metering apparatus. A bi-leaved valve apparatus comprises a cylindrical flow tube defining an axial material passageway, an outlet and a flow tube actuation surface. A valve support is... | 03/14/2006 |
| 7011323 | High speed bicycle A drive for a bicycle includes an auxiliary sprocket wheel assembly having two sets of at least three sprocket wheels associated in each assembly attached to a common axle, one of said sets having a larger diameter than the other set. Each set is provided with a der... | 03/14/2006 |
| 6994317 | Regulating vacuum valve A regulating vacuum valve comprises a valve housing with a through-channel, first and second valve plates which lie in adjacent and parallel planes and are mounted so as to be adjustable in their planes and can be moved into the through-channel from different sides ... | 02/07/2006 |
| 6971631 | Fluid damper A damper utilizing a frame having a base and a wall portion extending outwardly from the same. The wall portion supports a stepped edge which is positioned to at least partially circumvent and aperture formed by the frame. A plurality of flanges are positioned in ov... | 12/06/2005 |
| 6969044 | Apparatus for controlling a fluid discharge An apparatus for controlling a fluid discharge through an opening in a conduit includes a conduit section, conduit inlet, conduit interior, conduit exterior, and a conduit outlet or opening having a continuously curved perimeter surface with oppositely disposed conc... | 11/29/2005 |
| 6959690 | Four quarter butterfly valve system A butterfly valve system has an air cylinder with an internal passageway with an axis. An air control assembly includes a plurality of similarly configured plates positioned within the passageway with shafts mounted for independent oscillation and supporting the pla... | 11/01/2005 |
| 6920864 | Throttle body A throttle body for an internal combustion engine has a housing, a first plate carried by the housing for linear reciprocation between a first position and a second position in response to movement of a throttle member, and a second plate carried by the housing for ... | 07/26/2005 |
| 6896240 | Diaphragmed air valve system A diaphragmed air valve system for an automotive engine is provided which is designed for the purpose of keeping intact the shape as well as the mass of an air flow going through it. This diaphragmed air valve system includes a cylindrical air inlet having a valve o... | 05/24/2005 |
| 6892997 | Method and valve for reducing valve opening and closing time durations A process reducing the side opening and closing time of a valve. The process uses a valve for mounting in an intake port of a reciprocating engine upstream from a charge changing valve, which valve contains a valve element operating in conjunction with the inner wal... | 05/17/2005 |
| 6796328 | Damper system with sealing plug A damper system with a sealing plug, which incorporates an air flow monitoring system. The damper system utilizes current designs of the iris damper and incorporates a sealing plug positioned in the open circular cross-section of the iris damper. One version of the ... | 09/28/2004 |
| 6749176 | Elliptical valve with nominal flow adjustment A valve for the accurate control of fluid flowing through the valve. The valve has a valve body and a flow control mechanism. The valve body is a two-part body having a fluid flow section and a valve adjustment section. The fluid flow section has a fluid flow cavity... | 06/15/2004 |
| 6739570 | Valve element A safety valve of the type where two valve elements (4) in a bore (3) can be moved towards each other for closing a flow path (2). Each valve element comprises two parts (10, 20), each of which is connected to an actuator (5, 6), t... | 05/25/2004 |
| 6722405 | Flexible hose safety kit A safety kit 10 is provided for use with a flexible hose 2 for interconnecting a portable tank 14 with a another tank 12 to transmit fluids between the tanks. The safety kit includes a control housing 5 adapted for securing to one ... | 04/20/2004 |
| 6712335 | Fluid damper A damper utilizing a frame having a base and a wall portion extending outwardly from the same. The wall portion supports a stepped edge which is positioned to at least partially circumvent and aperture formed by the frame. A plurality of flanges are positioned in ov... | 03/30/2004 |
| 6666237 | Dispensing device in machines for filling containers with powder material A dispensing device for a powder filling machine comprises a duct with at least one dispensing outlet from which a powder material is directed into a container positioned beneath. The outlet incorporates an iris diaphragm with a plurality of occluding ele... | 12/23/2003 |
| 6640807 | High frequency oscillation ventilator A high frequency oscillator (HFO) ventilator has an oscillator unit for alternately supplying a volume of gas ("oscillator volume") to and removing the oscillator volume from a proximal end of a gas conduit at a predetermined high frequency. The gas condu... | 11/04/2003 |
| 6626418 | Needle free access valve A one way valve assembly has an inlet and an outlet, the inlet forming one end of a tubular passageway, a valve member which is slideable along the tubular passageway between a closed position where fluid is unable to flow through the valve assembly, and ... | 09/30/2003 |
| 6605176 | Aperture for linear control of vacuum chamber pressure The linear controlling of the pressure of a vacuum chamber, such as a plasma etch chamber used in semiconductor processing, is disclosed. A plasma etch chamber pressure control mechanism includes an aperture diaphragm and a number of aperture blades rotat... | 08/12/2003 |
| 6601601 | Adjustable vibration valve The adjustable vibration valve of the invention is a simple but effective device to regulate the flow of a fluid when the invention is vibrated by an outside source, where the adjustable vibration valve comprises a flow chamber with an inlet port and an o... | 08/05/2003 |
| 6588728 | Modified isbester (MI) flow control gate valve A gate valve unit is provided for controlling the flow of a fluid through a conduit. The gate valve unit includes a valve body including a conduit connector member or flange. A valve face block affixed to the valve body includes first and second backwardl... | 07/08/2003 |
| 6375155 | Device for closing pipes A device for closing pipes, in particular conveyor pipelines for gas or fluid media, which device comprises an annular carrier extending transversely of the passage of the pipe for a number of plates supported pivotally relative to the side wall of the ca... | 04/23/2002 |
| 6325096 | Variable orifice valve A variable orifice valve for controlling fluid flow in a conduit, comprising a band or other movable members defining an opening for passing the fluid therethrough, the band mounted transverse to the direction of fluid flow in the conduit, so that the ban... | 12/04/2001 |
| 6296225 | Ram bore profile for variable bore packer ram in a ram type blowout preventer An improved ram bore profile for use with a variable bore ram packer designed for use in a standard ram-type blowout preventer used in oil and gas drilling operations is disclosed. The improved ram bore profile in the ram body is a substantially U shaped ... | 10/02/2001 |
| 6271486 | Weighing machines A hopper for a weighing machine which has a tubular body and a closing valve which is comprised of several plates which are pivotably mounted around the bottom of the hopper for movement in a plane transverse to the axis of the hopper. The plates are simu... | 08/07/2001 |
| 6263928 | Valve assembly for use with containers in a closed application system A container for use in a closed application system includes a valve mounted to a discharge opening of the container and rotatable with the container for controlling the discharge of material from the container. The valve includes an element for engaging c... | 07/24/2001 |
| 6260569 | Safety system for fluid conduit A safety system for a fluid conduit comprising a flexible fluid conduit having first and second ends, a first valve seat disposed at the first end of the conduit and a second valve seat disposed at the second end of the conduit. The first and second valve... | 07/17/2001 |
