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| Number | Title | Issue Date |
| 8146618 | Ball non-return valve In the valve according to the invention the supporting blind (6) of the deflected channel (5) is terminated at its free ends with the oblique surfaces (10), and the guiding rail (7) of the ball (4) is terminated with the supporting... | 04/03/2012 |
| 8127789 | Fluid retaining apparatus with ball valve An apparatus that can be inserted into the bottom end of liquid delivery tube for retaining fluid in the tube to aid in drinking, utilizing a ball valve that for the most part only allows unidirectional flow of fluid through the valve and into the tube to prevent th... | 03/06/2012 |
| 7610930 | Discharge valve for downhole pumps A discharge valve comprising a valve body, a valve member, and a valve seat. The valve body has a first end; a second end; a central axis therebetween; an inlet formed through the first end; a flow channel extending from the inlet to the second end; a valve channel ... | 11/03/2009 |
| 7370665 | Tanks A tank which is primarily intended for spraying applications and mountable on an all terrain vehicle (“ATV”). The tank (10) includes a main tank section (11) which, in use, extends laterally of the ATV and at least one longitudinally extending arm ... | 05/13/2008 |
| 7350534 | Hollow ball valve assembly Apparatus and methods for constructing a valve comprising a sealing member and a hollow ball operable to sealingly engage the sealing member. A guide housing disposed about said hollow ball and does not constrain rotation of said hollow ball. A spring is disposed be... | 04/01/2008 |
| 7350380 | Washing machine Disclosed is a washing machine enabling to prevent foam from leaking. The present invention includes a housing, a tub installed in the housing to store water, the tub having at least one opening and at least one pipe connected to the at least one opening, a drum rot... | 04/01/2008 |
| 7290554 | Embedded microfluidic check-valve Embedded check-valve manufacturing assembly (100, 600) for subsequent firing and integration in a micro-fluidic system. The assembly can include a check-valve chamber (104, 604), an inlet port (106, 606) and an outlet port (108, 608) form... | 11/06/2007 |
| 7290555 | Embedded microfluidic check-valve Embedded check-valve manufacturing assembly (100, 600) for integration in a micro-fluidic system. The assembly can include a check-valve chamber (104, 604), an inlet port (106, 606) and an outlet port (108, 608) formed from at least one l... | 11/06/2007 |
| 7264015 | Non-return valve for a petrochemical reactor A rapidly replaceable non-return device (110) for a petrochemical refinery reactor (112), of the type comprising: a support tube (114), connected to a portion of the reactor (112), this support tube (114) being provided internally ... | 09/04/2007 |
| 7255012 | Process fluid flow device with variable orifice A process device providing total fluid flow control is provided. The device includes a closure mechanism disposed in a flow conduit. The closure mechanism, which is preferably an iris-type diaphragm, provides a variable internal diameter. The device includes a diffe... | 08/14/2007 |
| 7252500 | Check valve assembly for injection molding apparatus An injection molding apparatus which includes a check valve assembly mounted at the forward end of a feed-screw, the valve assembly having forward and rearward valve seat surfaces which co-act in a first position to allow a plasticized polymeric material to enter an... | 08/07/2007 |
| 7244204 | Hydraulic tensioner In a hydraulic tensioner, a check valve assembly comprises a synthetic resin ball guide with a check ball movable therein. Oil grooves are provided in the wall of the ball guide, and minimum clearance is allowed between the ball and the wall of the ball guide. The b... | 07/17/2007 |
| 7237569 | Ball check valve A ball check valve includes a mounting base, a valve cage and a valve ball. The valve cage is mounted on the mounting base and includes a base, multiple holding fingers and a filtering and regulating device. The holding fingers are formed on the base and are arrange... | 07/03/2007 |
| 7178554 | Ultrasonically controlled valve An ultrasonically operated valve a source of ultrasonic energy for excitation of a pressurized liquid. The vibration of the ultrasonic horn imparts a pulsing of the pressure of the liquid within the valve. Selection of a sealing mechanism that responds at a differen... | 02/20/2007 |
| 7174739 | Air chiller unit The invention provides an improved drain valve for dew condensation in an air chiller unit mounted on an aircraft. The drain valve 160 attached to a drain of a drain pan in an air chiller unit is equipped with a valve seat member 162 having an opening ... | 02/13/2007 |
| 7171981 | Flow control device and system A flow control valve has a ball and an annular seat providing a positive stop for automatically preventing flow through the valve when a line downstream has been broken. The flow control valve is useful for interior applications in which seepage through the valve wo... | 02/06/2007 |
| 7140394 | Thermostatic control valve with fluid mixing A thermostatic control valve assembly for use in continuously mixing a hot first fluid with a cold second fluid to continuously produce a mixed fluid at a constant temperature. The valve assembly includes an improved mixing dome defining a mixing chamber that facili... | 11/28/2006 |
| 7140388 | Dual ball valve air vent valve A unitary valve housing has an upper and lower portion. The upper portion has an inner chamber for accommodating two spaced apart balls and a cylindrical side skirt with oppositely positioned openings. The lower portion is cylindrical in shape and has a top shelf wi... | 11/28/2006 |
| 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 |
| 7108281 | Stored gas inflator with fill valve assembly An inflator (12) includes structure (40, 50, 82) defining a chamber (130). First and second passages (92 and 116) extend through the structure (40, 50, 82). A burst disk (120) closes the first passage (116). A ... | 09/19/2006 |
| 7093612 | Self-sealing one-piece vacuum fitting for bagging of composite materials A vacuum fitting having a check valve for use in bagging composite parts prior to and curing the during process, in which the body of the vacuum fitting is formed from a single piece of material, and the check valve has no loose fitting parts is disclosed. The vacuu... | 08/22/2006 |
| 7084121 | Mixtures of calcitonin drug-oligomer conjugates comprising polyalkylene glycol, uses thereof, and methods of making same A mixture of conjugates in which each conjugate in the mixture comprises a calcitonin drug coupled to an oligomer that includes a polyalkylene glycol moiety is disclosed. The mixture may lower serum calcium levels in a subject by 10, 15 or even 20 percent or more. M... | 08/01/2006 |
| 7069997 | Valve cage insert The insert for a ball and seat valve comprises a tubular cylindrical body formed by vertically spaced apart top and bottom rings joined by helically inclined and circumferentially spaced apart ribs defining side openings. The ribs support inwardly arching ball guide... | 07/04/2006 |
| 7063516 | One-way valve A double diaphragm pump including an air manifold, two air chambers to either side of the air manifold, two pump chambers to either side of the air chambers and diaphragms extending between the air chambers and pump chambers are stacked together in horizontal assemb... | 06/20/2006 |
| 7032608 | Microfluidic check-valve embedded in LCP Embedded check-valve assembly (100, 600) for integration in a micro-fluidic system. The assembly can include a check-valve chamber (104, 604), an inlet port (106, 606) and an outlet port (108, 608) formed from at least one layer of liquid... | 04/25/2006 |
| 7025087 | Reciprocating piston pump adjustable inlet ball travel A ball stop valve (10) allows liquid to enter a reciprocating piston pump when internal suction is great enough to raise the ball (13) and create a space between the ball (13) and a seat (9). This invention allows the user to easily inser... | 04/11/2006 |
| 6968858 | Check valve The check valve according to the invention significantly reduces the generation of noise by producing an asymmetrical circulation around the closing body causing a force resulting from the flow and acting on the closing body to have a transverse component in relatio... | 11/29/2005 |
| 6901949 | One-directional microball valve for a microfluidic device A microfluidic device that includes a microball valve is provided. The microball valve is capable of preventing or interrupting fluid flow through the microfluidic device. The microfluidic device can include a substrate layer, and a microfluidic pathway that include... | 06/07/2005 |
| 6899127 | Non-vibrating ball check valve A ball check valve comprises a valve body chamber which includes an inlet opening, an outlet opening, and a ball that is free to travel within the valve body chamber. A valve seat is adapted for receiving the ball. A body clearance section is located downstream of t... | 05/31/2005 |
| 6857442 | Freeze protection device for wall hydrants/faucets A freezeless wall hydrant has a normally horizontal fluid inlet tube with an interior end and exterior end. A hollow valve fitting is rigidly secured to the interior end of the inlet tube for a connection to a source of pressurized fluid. A movable ball is located w... | 02/22/2005 |
| 6817373 | One-directional microball valve for a microfluidic device A microfluidic device that includes a micro ball valve is provided. The microball valve is capable of preventing or interrupting fluid flow through the microfluidic device. The microfluidic device can include a substrate layer, and a microfluidic pathway that includ... | 11/16/2004 |
| 6805160 | Pump intake flow control A flow control device to be coupled to the intake of a pump including a base, an outlet plate having an outlet formed therein generally opposing the base, and a plurality of annular baffles carried between the base and the outlet plate. The annular baffles are space... | 10/19/2004 |
| 6802331 | Particle-based check valve A check valve for a fluidic system includes a fluidic conduit having an inlet with a first particle barrier, an outlet with a second particle barrier and a fluid chamber between the inlet and the outlet; and at least one particle disposed in the fluid chamber, the p... | 10/12/2004 |
| 6668862 | Fluid bearing mechanism A fluid bearing mechanism using a one-way valve with such a simple structure that high processing accuracy is not required. A one-way valve 6 includes a valve base 7; an abutting portion 11 protruding inwardly, formed with a small communication hole 12 in... | 12/30/2003 |
| 6619316 | Check valve having adjustable lift, packing assembly, and retrofit kit for same A packing assembly, retrofit kit, and check valve with adjustable lift having a ball stop member having opposed first and second contact portions and at least two washers being provided in a stacking configuration. The stacking configuration is one select... | 09/16/2003 |
| 6510869 | Ball check valve The present invention provides a ball check valve in which the area of a channel leading from a ball chamber to a discharge-side channel can be increased, and the adhesion of a ball to a valve seat surface is satisfactory even when the ball check valve is... | 01/28/2003 |
| 6508269 | Quick connector with one-way check valve A quick connector with a one-way flow valve includes a bearing cage mounted in a bore of a female component housing and supporting a tip end of a conduit lockingly held in the housing by a retainer. A projection extends from one end of the bearing cage an... | 01/21/2003 |
| 6439863 | Fuel pump with vapor lock inhibiting check valve A fuel pump designed to prevent vapor lock. The pump comprises an inlet check valve located between a pumping chamber and a reservoir. The inlet check valve allows the flow of fluid from the reservoir into the pumping chamber. The inlet check valve is con... | 08/27/2002 |
| 6422212 | On-off valve in a fuel injection system for internal combustion engines A fuel injection system has a low-pressure pump for withdrawing fuel from a tank and a high-pressure pump, which is supplied by the low-pressure pump and has camshaft-actuated pump elements. An on-off valve is connected on the inlet side to the pressure s... | 07/23/2002 |
| 6382230 | Ball valve A ball valve comprising a seat having a first opening thereon, a housing over the seat having a second opening defined by a flap having an inner and outer diameter, and a ball in the housing, the ball having a diameter great than the inner diameter of the... | 05/07/2002 |
