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| Number | Title | Issue Date |
| 7658365 | Assemblies and methods for coupling a component to an actuator Assemblies and methods are provided for use in coupling a component to an actuator, where the component includes a stem and a drive nut, and the stem is configured to be rotated by the actuator and to move linearly through an opening in the drive nut. In an embodime... | 02/09/2010 |
| 7240694 | Flow control valve for refrigeration system A flow control valve includes a valve body defining fluid inlet and outlet sections interconnected by a connecting port. A valve unit is disposed in the valve body and is operably connected to an actuator to be moved thereby for opening and closing the connecting po... | 07/10/2007 |
| 7152496 | Screw nut assembly of linear actuation device A screw nut assembly of a linear actuation device, having a screw, a main screw nut and a safety screw nut is disclosed. The main screw nut and the safety screw nut engaged with the screw are operative to displace linearly along an axis of the screw. The safety scre... | 12/26/2006 |
| 7114699 | Combination valve and regulation for use with pressurized gas cylinders, particularly oxygen cylinders A valve apparatus, and combined valve-regulator apparatus, for safely regulating the flow of combustible gases such as oxygen. ... | 10/03/2006 |
| 6997437 | Valve for dynamic control of fuel flow rate in gas turbine power plant, power plant and components thereof employing such valve, and method of constructing such valve There is disclosed a valve comprising a valve stem threaded with a translator having a flow modulating region, in which rotation of the valve stem about its axis causes the translator to move axially relative to the valve stem. In one aspect, the threads on the tran... | 02/14/2006 |
| 6991216 | Valve A valve, such as a liquid level sight glass gage valve, has a valve unit and a passageway that extends through the valve unit. The passageway has a stem receiving area, a seal receiving area, and a bonnet receiving area that has a non-circular inner perimeter. A pac... | 01/31/2006 |
| 6953056 | Metering valve assembly A metering valve assembly is provided with a valve stem having one or more tapered channels formed therein for selective engagement with a valve seat to provide incremental regulation of fluid flow through a valve housing. An adjustment knob provides one manner of r... | 10/11/2005 |
| 6918574 | Reduced torque gate valve with roller screw A gate valve is disclosed which comprises a valve body which includes a flow bore that extends completely therethrough and a gate cavity that extends partially therethrough and intersects the flow bore, a bonnet which is connected to the valve body over the gate cav... | 07/19/2005 |
| 6810903 | Conduit flow controller The invention is an improved conduit flow controller for selectively controlling the flow of fluid through an elongated conduit. The conduit has an aperture defined by a continuous peripheral edge in the sidewall of the conduit. An elongated housing surrounds the ap... | 11/02/2004 |
| 6802488 | Electro-mechanical coaxial valve Coaxial valves usually contain only one moving part. It has not been easy, then, to provide for electric motor actuation. Many actuators being proposed involve designs which lead to bulky packages. The key facing those improving coaxial valves is the provision of su... | 10/12/2004 |
| 6691737 | Hand drive for shut-off members A hand drive for shut-off members is described, for example for membrane valves, the hand drive comprises a hand wheel for actuating the valve which is provided with a closure limiter and a valve lift limiter, the hand wheel is provided with two inserts m... | 02/17/2004 |
| 6588195 | Bleed valve of a compressor, in particular a compressor of a bypass aero-engine This invention relates to a bleed valve of a compressor, in particular a compressor of a bypass aero-engine, with a guiding device provided downstream of a valve body in the bleed duct, said guiding device directing the bleed airflow from a compressor duc... | 07/08/2003 |
| 6561480 | Motor operated valve The present invention provides a motor-operated valve having no additional stopper for stopping the rotation of a rotor at fully open and closed states of the valve to allow a reduced number of parts of the valve and to prevent a noise otherwise generated... | 05/13/2003 |
| 6446660 | Valve assembly with multiple mode actuators A multiple mode valve assembly including valve actuators equipped with a combination of a shaft (4) and a spindle (5), coaxial and immobilized in an axial direction, but capable of rotating freely one with respect to the other, so that by means of the spi... | 09/10/2002 |
| 6298879 | Stem valve stopper A stem valve stopper that has a shell (1) intended to be mounted to a faucet (K). An operating stem (8) is mounted for rotation but is axially fixed in the stopper shell (1) and has a lower end that acts as a valve seat surface (12). The stem 8 has an int... | 10/09/2001 |
| 6237639 | Dump-valve device for a craft and pneumatic craft fitted with same A dump-valve device for a craft, characterized in that it comprises: a plug valve (13) movable approximately rectilinearly relative to a fixed seat (17) supported by a craft transom plate (3), drive means (9, 10) mobile in rotation along a rotary stroke o... | 05/29/2001 |
| 6223772 | Dual function valve assembly A valve assembly for controlling the flow of refrigerant and coolant through an HVAC system is provided. The valve assembly includes a refrigerant housing defining a refrigerant conduit with a refrigerant inlet and a refrigerant outlet. A refrigerant valv... | 05/01/2001 |
| 6202673 | Valve self-piercing tap The invention relates to a valve self-piercing tap for a plastic tube with a plastic housing (1) which has a branch connection member (2) and holds a valve body (3), in which a blocking body (5) engaged with a threaded spindle (6) and carrying a punch rin... | 03/20/2001 |
| 6059262 | Valve operator and method The valve operator of the present invention provides an apparatus and method for reducing torque necessary for opening and closing a valve, such as a quarter-turn rotary valve. In the preferred embodiment, an outer handle adaptor has inner curved tracks t... | 05/09/2000 |
| 6003535 | Micro control valve and apparatus and method for making semiconductors with high purity process gas An improved continuously variable micro control valve and an apparatus and a method employing the same for making semiconductors enable a computer to precisely set a driver of the micro control valve such that the accuracy of the control valve in reproduc... | 12/21/1999 |
| 5971007 | Piston valve A piston valve for use in connection with the fire protection industry is disclosed which includes features for protecting against corrosion. A sacrificial zinc anode is mounted in the body of the valve under the handwheel. A polymeric piston is used whic... | 10/26/1999 |
| 5829734 | Shut-off valve A shut-off valve (1, 101) including a valve housing (2, 102) having a flow passageway (3, 103); a shut-off member (22, 122) displaceably arranged in the housing between an open position and a closed position of the valve flow passageway through an actuato... | 11/03/1998 |
| 5826856 | Tap fitting with bellows-type seal The invention concerns a tap fitting in which the gap between the tap spindle and the spindle lead-in in the housing is sealed off by means of a bellows-type seal. The end of the seal nearest the housing is connected to a sleeve which is sealingly mounted... | 10/27/1998 |
| 5791433 | Variable throttle valve with eccentric members, for use in hydraulic steering device A screw member is screwed into a spool which is axially movably inserted into a housing. The opening of the throttling portion of a variable throttle valve is varied according to the axial shifting of the spool according to the rotation of the screw membe... | 08/11/1998 |
| 5690313 | Low noise water-control valve for hydraulic and sanitary pipes A noiseless valve includes a leading spiral spindle (4) having a thread (8) at one end by which it is screwed into a spiral (8') of a piston holder (10). The piston holder (10) has a cylindrical shape and is placed into a valve body (1). The leading spira... | 11/25/1997 |
| 5620166 | Stem and nut with bearing for use in a motor operated valve A valve comprises a body for connecting to a pipe, the body having a passageway therethrough for communicating with the pipe; a member disposed within the passageway, the member being movable between open and closed positions for permitting and stopping f... | 04/15/1997 |
| 5596893 | Devices for securing fire hydrant valves A magnetic security device for preventing unauthorized opening of fire hydrant valves includes an inner cylindrical member which is fixed to a nut on the valve stem and an outer rotatable member which is coupled to the inner cylindrical member by a magnet... | 01/28/1997 |
| 5580031 | Stop valve A stop valve which is in particular constructed as a valve top for a sanitary fitting, contains an actuating member constructed as a rotary spindle. The actuating member, which is held in axially non-displaceable manner, engages with a hexagonal neck in a... | 12/03/1996 |
| 5577529 | Tapping fittings A tapping fitting for a pipe, preferably a plastic pipe, includes a rotatable blade assembly threaded within a sleeve non-rotatably received within a housing such that rotation of the blade assembly causes it to cut a cylindrical slug from the pipe to whi... | 11/26/1996 |
| 5524864 | Check valve made of plastic A check valve made of plastic for containers of liquids. The check valve includes a valve housing having an inlet connector and an outlet opening. The outlet opening includes a valve seat. A linearly displaceable valve sealing body can be moved toward and... | 06/11/1996 |
| 5470046 | Gate valve structure A resilient seat gate valve is provided with a housing having an opening for receiving the operating stem for the valve and a cover with a seal for the cover to the housing opening comprising a step peripheral surface and an angled surface located interio... | 11/28/1995 |
| 5374030 | Valve actuating mechanism An improved valve plug actuator is provided which is substantially impervious to environmental contamination and which provides greater axial transfer of seating force to an associated valve plug. The actuator uses an indexing race formed in an indexing s... | 12/20/1994 |
| 5322262 | Bearing device for the threaded sleeve of a valve stem A gate valve has a housing for a valve seat, and an attachment which extends outwardly from the housing and constitutes an extension thereof. A cap is secured to the attachment at the end of the latter remote from the housing, and a plate which traverses ... | 06/21/1994 |
| 5279320 | Gate valve A gate valve comprises a valve body (1) and a gate displaceably arranged inside said valve body transverse to the flow direction, said gate being provided on each side with a guide groove (14) guided by means of a mating guide rail formed on each side of ... | 01/18/1994 |
| 5222715 | Valve construction A valve construction comprising a molded body including a plurality of body sections each having a generally flat inner surface. The flat surfaces of the body sections are disposed in contiguous relation along an interface. Each surface has a plurality of... | 06/29/1993 |
| 5148831 | Bi-directional shaftless butterfly valve The present invention is a shaftless bi-directional butterfly valve that does not require a valve housing and may be mounted to a length of pipe by merely drilling a hole into the wall of the pipe. A stuffing box is attached to a pipe by a U-bolt or other... | 09/22/1992 |
| 5143350 | Gate valve A gate valve has a one-piece casing which contains a valve chamber. The casing is provided with a tubular stub on either side of the chamber, and the stubs serve to connect the valve to a pair of pipes. The chamber has a non-circular sealing surface which... | 09/01/1992 |
| 5083743 | Slip thread adjustable in-line valve for sterile fluids A rotatable rigid material valve operator is provided having a threaded shank threadedly engaged within a threaded blind bore formed in a valve member constructed of thermo plastic elastomer having an 80-90 "SHORE" scale durometer hardness and snugly slid... | 01/28/1992 |
| 5074526 | In-line fluid flow control valve with apparatus for and method of installation in an existing fluid conduit The present invention provides an in-line fluid flow control valve adapted and designed for installation in an existing fluid line carrying fluid under pressure, without the necessity of interrupting flow of fluid through such line, and further provides a... | 12/24/1991 |
| 5060909 | Shut-off valve for fluids The invention relates to a shut-off valve comprising a valve housing (12), a valve piston with valve cone (22) arranged up-stream of an associated valve seat (20), and a piston holder (16) axially movable within the valve housing (14) by means of a spindl... | 10/29/1991 |
