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| Number | Title | Issue Date |
| 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 |
| 7363942 | Continuous automatic control and distributor valve, with a magnetic seal A valve which is composed of: —A seal consisting of two identical ferromagnetic discs (1), which enclose another smaller-diameter disc (2) and a permanent magnet, the rims (3) of the outer discs (1) being bevelled and the three discs co... | 04/29/2008 |
| 6968816 | Oil flow control valve In an oil flow control valve (OCV) according to the present invention, a first volume varying chamber is adapted to communicate with a second volume varying chamber through a second plunger breathing path, and the second volume varying chamber is adapted to communic... | 11/29/2005 |
| 6935371 | High capacity globe valve A high flow globe valve with a body defining an interior cavity in communication with a first and second fluid passages. A tubular throttling cage is offset in the cavity away from the second fluid passage and has an open end in communication with the first fluid pa... | 08/30/2005 |
| 6722131 | Fuel control valve A low hysterisis fuel control valve for proportioning fuel being supplied to the combustor of the turbine engine into a first portion for delivery to primary fuel nozzles and a second portion for delivery to secondary fuel nozzles is provided. The valve includes a p... | 04/20/2004 |
| 6499506 | Vacuum distribution controller apparatus A vacuum suction force control apparatus is disclosed by way of a duct, having an entrance port and at least one exit port. Flow of suction force is controlled by moving a piston-like plunger inside the duct, connecting the entrance port to one, or simult... | 12/31/2002 |
| 6453929 | Rotary wash valve A wash system for a fluid handling system that permits simultaneous washing of a plurality of parallel fluid channels is disclosed. In one aspect of the invention, a specialized rotary wash valve is described. In another aspect of the invention a system w... | 09/24/2002 |
| 6318357 | Gas burner configuration for cooking areas A gas burner configuration for cooking areas includes a multi-ring gas burner having an inner burner with laterally aligned gas/air mixture outlet openings and an annular outer burner, disposed at a spacing from the inner burner, with gas/air mixture outl... | 11/20/2001 |
| 6314998 | Fuel divider and ecology system for a gas turbine engine A fuel control system for supplying metered quantities of fuel from a fuel supply (11), through a fuel pump (13), a metering valve (15) and a pressurizing valve (17) to a plurality of engine fuel manifolds (31a, 31b, 33) includes an ecology valve (43) for... | 11/13/2001 |
| 6206342 | Seat valve having rotating closure member for variable pressure control A seat valve for controlling pneumatic or hydraulic pressure between at least two pressure fluid channels (8, 8') includes a valve closure member (5) connected to a magnetic armature (4), a spring for the basic positioning of the valve closure member (5) ... | 03/27/2001 |
| 6056873 | Management of a body of water The installation disclosed comprises a body of water, a pump, a filter and pipes connecting the body of water, pump and filter. Additional pipes lead from the pipe to the return pipe and to waste. Solenoid operated valves are provided in the pipes so that... | 05/02/2000 |
| 6047733 | Method and apparatus for selectively drawing air from a plurality of vacuum channels A sequencing manifold for selectively drawing air from a plurality of vacuum channels, comprises, a fixed element having an outer surface and an internal cylinder, the fixed element further including a plurality of holes passing from the outer surface to ... | 04/11/2000 |
| 5974827 | Refrigerant thermostatic valve The present invention provides a valve for use in a lubrication oil circulation system associated with the compressor of a refrigeration system, which valve has internal operating components which can be removed through a sealable access opening in the wa... | 11/02/1999 |
| 5746251 | Multi-port fluid valve A multi-port valve mechanism for fluids, especially compressed air, comprises a cylindrical (ring-like) housing. A motor drives a shaft centered in the housing which is rotatably supported by the housing walls. The shaft carries an arm having one, or two,... | 05/05/1998 |
| 5727434 | Circular saw air table A table saw is disclosed comprising a main saw unit and an air table attachment. The air table is mounted adjacent a main support surface of the main saw unit, and includes a body portion and a generally planar table top. The body portion has a plurality ... | 03/17/1998 |
| 5578016 | Stopcock A stopcock comprises a tubular outer body having at least two radial openings being on the same transverse cross-sectional plane of said body; and a hollow core member snugly fitting into said outer body and having a first open end and a second, closed en... | 11/26/1996 |
| 5391353 | Metering device with radial arrangement of valves A multi-function metering device having a plurality of control valves arranged on an annular support. Each control valve can be controlled independently of the others. The annular arrangement of the valves allows the lines to be kept short so that the met... | 02/21/1995 |
| 5351717 | High differential pressure control valve A high differential pressure control valve having a plurality of stages of high resistance ports forming a high resistance passage and one or more low resistance ports forming a low resistance passage in a cage. The number of stages of low resistance port... | 10/04/1994 |
| 5193237 | Pneumatic wheel chair cushion for reducing ischemic injury A pneumatic cushion for a wheel chair and the like is disclosed which comprises an air plenum box, a plurality of air openings in the air plenum box, and a plurality of air channels communicating with an air supply. The air channels communicate with the a... | 03/16/1993 |
| 5141210 | Longitudinally adjustable gas spring A longitudinally adjustable gas spring has a valve having a valve pin arranged to be moved within a valve body. On both sides of the inner chamber of the valve body annular seals are arranged and bear against the cylindrical sections of different diameter... | 08/25/1992 |
| 5080133 | Control valve assembly A valve assembly includes a housing and a valve plunger slidably mounted within the housing, which carries a pair of valve engaging, ringlike elements for engagement with corresponding seats on the plunger. The cross-sectional diameter of one of the ringl... | 01/14/1992 |
| 4957706 | Device for preserving sterility during sampling from culture medium containers A device for preserving sterility during the taking of samples for analysis from culture medium containers. This device comprises a holder containing a sampling chamber which encloses a sliding piston fitted at one end with a toric cavity for removal of t... | 09/18/1990 |
| 4880031 | Heater and air conditioning control system A control head has support structure arranged to support it at the rear side of a dashboard. This control head supports a mode control lever and a valve having an elongated housing with pressure inlet and outlet laterals therein. The outlet laterals are a... | 11/14/1989 |
| 4764780 | Ink ejection recording apparatus having means for equalizing the static ink pressures of a plurality of ink nozzles arranged at different heights An ink ejection recording apparatus is disclosed which comprises a plurality of ink ejection heads commonly connected to an ink tank, each of the ink ejection heads having an ink nozzle through which minute ink droplets are discharged in accordance with a... | 08/16/1988 |
| 4483369 | Linear motor-actuated flow control valve A linear motor-actuated flow control valve includes spring means for biasing a bobbin controlling valve hole opening degree in mutually opposing directions, to hold the bobbin at a middle opened position when an electromagnetic coil wound on the bobbin is... | 11/20/1984 |
| 4444337 | Apparatus for proportioning fluids An apparatus and method for determining the heating value of gaseous fuels is disclosed which include the novel means for establishing a mixture of air and the gaseous fuel of interest in known volumetric proportions. An electrochemical sensor is provided... | 04/24/1984 |
| 4420981 | Manometer switching valve A switching valve for the selective connection of each of a plurality of measuring locations with a manometer has a first valve body mechanically connected to the manometer and a second valve body rotatable with respect to the manometer, the second body h... | 12/20/1983 |
| 4327864 | Multiple function pneumatic thermostat A thermostat for a pneumatic control system controls output pressures to a plurality of elements to be controlled. The thermostat can control output pressure directly or inversely and linearly or nonlinearly with respect to temperature. Additionally, the ... | 05/04/1982 |
| 4254797 | Apparatus for producing calibration gases suitable for analytical instrumentation Apparatus, useful for blending predetermined accurately measured quantities of gaseous components transferred from separate pressurized supply tanks to a gas blending system, preferably on input signals received from a computer. The gas blending system in... | 03/10/1981 |
| 4243063 | Mixing valve An illustrative embodiment of the invention provides a valve seat that has hot, cold and discharge water apertures. A plate, relatively rotatable with respect to the valve seat, is pressed against the valve seat surface. A cavity formed in the plate adjac... | 01/06/1981 |
| 4196634 | Valve device for selectively connecting a pressure gauge to a plurality of pressure lines A rotary valve device for the selective connection of a pressure sensing device to any one of a number of separate pressure lines in a hydraulic control system, the selector valve comprising a cylindrical valve base with axial pressure line bores on a cir... | 04/08/1980 |
| 4179980 | Hydraulic brake booster A hydraulic brake booster adapted to vehicles having a manually operable control valve to control pressure increase in the booster for attaining the available braking fluid pressure in the brake wheel cylinders of the vehicles. In the booster is employed ... | 12/25/1979 |
| 4177833 | Valves having a pressure equalizer across dual face seals A valve has upstream and downstream seat assemblies each having a pair of spaced annular face seals in concentric relation to form inner and outer face seals. A movable valve member (26, FIG. 2; 88, FIG. 8) has a main bore therethrough and is mounted in a... | 12/11/1979 |
| 4175909 | Valve means for use in controlling operation of a hydraulic motor The control valve mechanism of, for example a hydraulic motor for a chain saw, includes a two-position spool having a hollow interior permanently connected to reservoir and a cylindrical wall formed with ports which are closed in one valve position and op... | 11/27/1979 |
| 4146594 | Fuel flow control device A fuel control device is adapted to be used in the place of the conventional pilot jet of the carburetor of an internal combustion engine. This device comprises a chamber defining first and second valve seats, as well as a double-acting movable valve memb... | 03/27/1979 |
| 4116217 | Deflation valve for blood pressure measuring devices A deflation valve for blood pressure measuring devices having a valve body with a threaded extension surrounded by concentric outlet grooves for slow-deflation and dumping purposes, respectively, in an outwardly facing flat valve seat covered by a flexibl... | 09/26/1978 |
| 4082111 | Load responsive fluid control valve A direction flow control valve for control of positive and negative loads equipped with a load responsive control which automatically blocks the pump flow to the motor while controlling negative load, providing the motor inlet with fluid from the motor ex... | 04/04/1978 |
| 4028889 | Load responsive fluid control system A load responsive fluid power multiple load control system using load responsive direction and flow control valves in combination with pump control responding to highest system load. Each direction flow control valve is equipped with a load responsive pos... | 06/14/1977 |
| 4020748 | Valve structure for hydraulic control system A valve piston in an automotive power-steering system has a pair of inner peripheral grooves, defined by confronting lands of adjoining piston heads, normally communicating with the high-pressure side of an oil pump via symmetrical branch channels and wit... | 05/03/1977 |
| 3984979 | Load responsive fluid control valves A load responsive direction and flow control valve for use in fluid power load responsive system. The valve maintains a selected constant flow level for control of both positive and negative loads, irrespective of the change in the load magnitude or chang... | 10/12/1976 |
