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| Number | Title | Issue Date |
| 8141848 | Piston with integral seals for a water softener control valve A piston for a control valve of a water treatment apparatus includes a body having a central portion from which at least one flange projects radially outward. Each flange has an outer peripheral surface extending around the central portion with an annular groove the... | 03/27/2012 |
| 7384022 | Seal arrangement for a piston valve A sliding seal arrangement in particular for a valve having an anodised aluminium coating in contact with the seal. The coating is produced so that inclusions in the surface of the coating are substantially aligned. The direction of motion of the sliding seal in use... | 06/10/2008 |
| 7363937 | Replaceable sleeve insert for a choke assembly A replaceable sleeve insert for a choke assembly is disclosed, wherein the replaceable sleeve insert has a tubular member coaxially and sealingly retained within an upper body section of the choke assembly. The tubular member is also sealed against the bonnet. The t... | 04/29/2008 |
| 7341435 | Fluid end A fluid end for a high-pressure pump including a unitary body with a plurality of horizontal passages each for receiving a reciprocating plunger at one of its ends and a pressure relief valve at the other of its ends. The body is provided with a corresponding number... | 03/11/2008 |
| 7207348 | Machine comprising a safety valve for the supply of pressurised fluid The safety valve comprises a body and an obturator movable in the body between a closed position (FIG. 2) and an open position (FIG. 3). It also comprises means for displacing the obturator in order to displace it towards its closed position when the p... | 04/24/2007 |
| 7172175 | Suction valve A suction valve including a valve seat and a piston movably joined to the valve seat. The piston has a head for engaging the top surface of the valve seat and a stem extending downwardly from the head through the valve seat. A valve guide is positioned adjacent the ... | 02/06/2007 |
| 7156267 | Valve unit for filling machines The present invention relates to a valve unit for container filling machines, particularly for bottle fillers. More particularly, the present invention relates to a valve unit (1), particularly for machines for filling containers (8), comprising a holl... | 01/02/2007 |
| 7115221 | Method for producing graphite powder with an increased bulk density A method for increasing the Scott density of synthetic and/or natural graphite powders of any particle size distribution, preferably of highly-pure graphite, by subjecting the graphite powder to an autogenous surface treatment. The powder is used, in particular, for... | 10/03/2006 |
| 7066446 | Hydraulic valve arrangement A hydraulic valve arrangement with a first and a second working connection, both working connections being connectable with a hydraulic consumer, a supply connection having a pressure connection and a tank connection, a first valve, which closes the pressure connect... | 06/27/2006 |
| 7028976 | Closure element, especially a valve cone for a continuous pressure valve A closing body is mounted in an axially displaceable manner in a bore of a fluidic valve to control a pressure medium flowing via the valve. The closing body has a sealing section, interacting with a seating edge of valve, and a guide section which serves to guide t... | 04/18/2006 |
| 7021605 | Regulator valve A control valve (1) comprises a housing (2) manufactured by a pressure die casting process, whose housing edges of upper semicircular bore hole are located exactly vertically above housing edges of lower semicircular bore hole and for this reason, the ... | 04/04/2006 |
| 7011117 | Filling valve An improved filling valve and liquid filling machine comprising such valve are herein disclosed. The filling valve comprises a housing having a base, a cap and a sidewall extending between the base and the cap thereby defining a chamber. The base has a ramp which sl... | 03/14/2006 |
| 6997439 | Liquid filling valve The present invention provides a filling valve which affords an excellent sterilization capability and a high maintenance capability. The valve includes a tubular nozzle 4, an operating rod 6 which is fitted in the nozzle 4 so as to be elevatabl... | 02/14/2006 |
| 6969046 | Venting mechanism A liquid sprayer is provided. This liquid sprayer comprises a bottle having an opening and a sprayer housing attached to the bottle. This sprayer housing includes an electric motor, a voltage source for powering the electric motor, a pump driven by the motor, a swit... | 11/29/2005 |
| 6959908 | Gate valve flexible wedge A flexible wedge has a pair of pressure retaining plates and a central wedge body therebetween. The pressure retaining plates have inclined seating surfaces on opposed outer faces thereof for mating with corresponding valve seats within the valve body to prevent sub... | 11/01/2005 |
| 6863260 | Piston actuator incorporating partitioned pressure chambers A multi-chambered piston actuator incorporates partitioned pressure chambers, each chamber delivering an actuation force to a common target object based on multiple presence signals and/or resources. The chambers are formed in part by one or more tiers, each tier ha... | 03/08/2005 |
| 6837484 | Anti-pumping dispense valve Anti-pumping dispense valves, constructed according to principles of this invention, comprise a fluid transport housing having a fluid inlet passage extending into the housing, a fluid outlet passage extending out of the housing, and a fluid transport chamber dispos... | 01/04/2005 |
| 6811141 | Valve including vibration dampening means The present invention provides a valve comprising a conduit, characterized by a longitudinal axis, and a piston disposed within the conduit. The piston is characterized by a longitudinal axis and includes a pilot tip characterized by an operative surface configured ... | 11/02/2004 |
| 6764265 | Erosion resistant slit valve Embodiments of the present invention provide structures for reducing erosion of a slit valve utilized in the fabrication of semiconductor devices. Specifically, non-metallic slit valve components such as a compressible sealing member and a barrier that assist in sea... | 07/20/2004 |
| 6729600 | Valve for regulating fluids A valve for regulating fluids includes a piezo-electric actor unit (9) for operating a valve member assembly. The valve member assembly has at least one first piston (13) guided in a valve body (10) and a second piston (14). A hydraulic c... | 05/04/2004 |
| 6695280 | Device for pneumatic control A device used for pneumatic control, includes a control piston carried in a cylinder. The control piston is mounted so as to be movable in the direction of a longitudinal piston axis, and a primary flow path that can be closed by the control pressure pass... | 02/24/2004 |
| 6637452 | Valve with self-cleaning trim The seal assembly is disclosed for use with a valve having a trim cage with an inner surface extending along in axis and a plug sized to fit inside the trim cage inner surface, wherein the plug is adapted to move along the axis thereof. A seal ring is att... | 10/28/2003 |
| 6495034 | Swimming pool valve system A swimming pool installation including a skimmer device, a vacuum system, a pump and a valve module is disclosed. A seat divides the valve module into an upstream chamber coupled to the skimmer device and a downstream chamber coupled to the vacuum system ... | 12/17/2002 |
| 6478046 | Gas pressure regulator An improved pressure regulator suitable for use with paint ball guns comprises a hollow valve body and a valve mechanism for selectively releasing gas from a gas source to an output. The valve body has a unitary coupling portion, a fill port, an output po... | 11/12/2002 |
| 6467751 | Inflation valve An inflation valve has a valve housing having an inner wall, a cylindrical inner chamber terminating in a gas outlet, and a gas inlet bore providing fluid communication between the inner chamber and a pressurized gas source. A piston enclosed in the inner... | 10/22/2002 |
| 6338466 | Water well recharge throttle valve A water well recharge throttle valve (1) is configured as a hydraulic actuated flow control device (5) that permits calibrated throttling of water used in Artificial Storage and Recovery (ASR), Salt Water Barrier, Dedicated Recharge and Injection Wells to... | 01/15/2002 |
| 6254061 | Medical suction valve A valve assembly includes a housing defining an aperture, a passageway, and a branch passage. The branch passage extends from the aperture and intersects and communicates with the passageway. The branch passage is disposed at an angle greater than 90 degr... | 07/03/2001 |
| 6192990 | Multi-dump metering valve In one aspect, the invention is directed towards a helicopter-carried firefighting device including a valve. The valve has an outer assembly and an inner assembly in which the outer assembly has a reduced surface area on those surfaces which are disposed ... | 02/27/2001 |
| 6185755 | Apparatus for flushing drain pipes Apparatus for flushing a drain pipe with an accessible open end has a valve assembly with a hollow body connectable to a source of liquid under pressure for the supply of liquid under pressure to the interior of the hollow body, the hollow body having an ... | 02/13/2001 |
| 6132407 | Outlet tube device for urinary drainage bag An improved outlet tube device for a urinary drainage bag is disclosed wherein an outlet valve mechanism is contained with a rigid housing fixed securely to the drainage bag, rather than just being clamped to the outlet tubing, and thus cannot become sepa... | 10/17/2000 |
| 6102673 | Subsea mud pump with reduced pulsation A positive-displacement pump includes multiple pumping elements, each pumping element having a pressure vessel with a first and a second chamber and a separating member disposed between the first and second chambers. The first chambers and the second cham... | 08/15/2000 |
| 6102075 | Flow control device A fluid flow control device for use in heat pump systems is provided. The device includes an elongated body shaped to define a plurality of lines of contact along the elongated body which reduces operational noise and which improves fluid flow characteris... | 08/15/2000 |
| 6079694 | Fluid pressure device The fluid pressure device includes a valve housing 2 in which a spool hole 14 is formed, and a spool 18 having a first spool portion 22 inserted in the spool hole 14, and the spool portion 22 is movable with respect to the first hole portion 26 of the spo... | 06/27/2000 |
| 6073906 | Water well recharge throttle valve A water well recharge throttle valve is configured as a hydraulically actuated flow control device that permits calibrated throttling of water used in Artificial Storage and Recovery (ASR), Salt Water Barrier, Dedicated Recharge and Injection Wells to pre... | 06/13/2000 |
| 6073911 | Fuel injection valve with guide balls for needle valve A fuel injection valve with a valve needle of a narrow guidance play of the valve needle and the guide opening of the valve housing are improved by two guide sections of the valve needle being guided by guide balls which are seated against conical faces a... | 06/13/2000 |
| 5988591 | Spool A packing mounting groove formed in a spool has a wider portion of a large groove width and a narrower portion of a small groove width, and a packing that is mounted in the packing mounting groove has a first portion that fits in the wider portion and a s... | 11/23/1999 |
| 5934323 | Spool It is an object of this invention to reduce air resistance, which occurs when a packing is mounted in the mounting groove of a spool. Reducing this air resistance facilitates the mounting operation and prevents compressed air from being contained in a gro... | 08/10/1999 |
| 5871200 | Water well recharge throttle valve The VoSmart (a Variable Orifice/ Selective Monitored Artificial Recharge Throttle) Valve is a disclosed and the preferred embodiment of a hydraulically actuated flow control device that permits the calibrated throttling of water used in Artificial Storage... | 02/16/1999 |
| 5826618 | Bonded elastomer seal valve assembly A valve for regulating a flow of pressurized gas in a torch includes a valve body having a central bore and a connected outlet bore for passage of gas from a source to a torch tube. A valve needle is disposed in the central bore and is movable to open and... | 10/27/1998 |
| 5823397 | Personal hygiene liquids dispenser with an improved valve seat A liquid dispenser assembly (10) for personal hygiene liquids includes a container (14) and a dispenser valve (16). Each valve includes a valve plunger (60) with a head (62) having a flexible peripheral skirt (64) that provides increased bypass of liquid ... | 10/20/1998 |
