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| Number | Title | Issue Date |
| 7523760 | Valve rotating device The invention relates to a valve rotating device comprising a basic body, a cover which is rotatable and axially displaceable relative to the basic body about an axis of rotation, and a rotating device to rotate the basic body relative to the cover about the axis of... | 04/28/2009 |
| 7337806 | Stepper motor driven proportional fuel metering valve A low energy stepper motor driven fuel metering valve (FMV) that eliminates the need for a position sensor is provided. The stepper motor rotates a cam that replaces the flapper valve used in conventional systems. The cam rotation increases the gap between the cam a... | 03/04/2008 |
| 7300482 | Particle separation apparatus Particle separation apparatus comprises a cyclone particle separating means, a particle collecting chamber and a fan driven by an electric motor for drawing particle laden air into and through the apparatus. A valve is provided, upstream of the suction fan driving m... | 11/27/2007 |
| 7293578 | Gauge assembly having a stop fill device A gauge assembly includes an indicator for providing an indication of an amount of fluid in a tank and a stop-fill assembly for stopping the flow of fluid flowing into the tank once the fluid reaches a particular level. The gauge assembly has a shaft that rotates as... | 11/13/2007 |
| 7287541 | Method, apparatus and system for controlling fluid flow A system, apparatus and method of controlling the flow of a fluid are provided. In accordance with one embodiment of the present invention, a flow control device includes a valve having a flow path defined therethrough and a valve seat in communication with the flow... | 10/30/2007 |
| 7273026 | Roller follower body The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i... | 09/25/2007 |
| 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 |
| 6929239 | Microfluid system for reactions and transfers The invention concerns a device for performing a reaction or at least two reactions in parallel or in series, and for transferring a fluid flow, consisting of. an upper surface (2) and a lower surface (3) mutually linked by an edge (4); at least... | 08/16/2005 |
| 6619935 | Mixing valve with axially segmented stator windings for axially positioning a control element for controlling the fluid connection between inlets and outlets The invention relates to a mixing valve with at least two inlets and at least one outlet. A control element is configured as a pump wheel controls the fluid connection between the inlets and the outlets. The pump wheel is connected to a hollow shaft which... | 09/16/2003 |
| 6568415 | Storing device for easily polymerizable and coagulating liquid substance and method for pressure control thereof A storing device is disclosed having a gas-sealing device and/or a heating device provided for a pipe connecting a storing tank for an easily polymerizable and/or coagulating liquid substance and a liquid sealing implement-protecting device. A method for ... | 05/27/2003 |
| 6460561 | Valve piston and valve equipped with same Pressurised medium apparatus with a valve.... | 10/08/2002 |
| 6334604 | Direct drive valve ball drive mechanism and method of manufacturing the same A direct drive servo-valve wherein rotational motion of a drive motor rotor is converted into linear motion of a spool valve. The drive motor includes a shaft which has affixed to the end thereof a ball which engages the spool valve. The ball is affixed t... | 01/01/2002 |
| 6273121 | Valve seat self cleaning device for alumina production plants This valve is applicable in conduction of bauxite in pipes and is meant to allow the self-cleaning of the valve with the aid of a locking cap which connects the drive crown and the valve shaft, causing the rotation of said crown to be transmitted to the v... | 08/14/2001 |
| 6119716 | Valve A valve comprising a valve housing (10), having a valve seat (18) therein, a valve member (16) moveable via a valve spindle (15) between positions spaced from and seated on the valve seat. The valve member is required to lap a plurality of times on the va... | 09/19/2000 |
| 6092550 | Diaphragm valve seat arrangement A flow control device includes a first body and a second body; a threaded engagement for clamping the bodies together in an axially aligned relationship; a diaphragm seal that is disposed axially between the first and second bodies to form a seal there be... | 07/25/2000 |
| 5893521 | Hot water safety discharge nozzle The invention provides a hot water safety discharge nozzle and a water heater pressure/temperature relief discharge system having such a nozzle. The nozzle results in the decrease of both the pressure and temperature of the discharged water by spraying th... | 04/13/1999 |
| 5234014 | Fuel control governor A mechanical fuel control governor employs a flyweight assembly for lifting the spindle of a fuel valve and allowing fuel to be bypassed from a high pressure line. The spindle is rotated via a fluid coupling between the ball head and the drive spindle suc... | 08/10/1993 |
| 4793377 | Direct drive servo valve A direct drive servo valve includes a valve housing having a cylindrical bore and a valve spool mounted for movement in the bore for controlling fluid flow through said valve housing. The valve spool has a drive well located in the spool transverse of its... | 12/27/1988 |
| 4790346 | Fluid control valve A fluid flow control valve with a rotatable valve member offset from its outlet seat so it engages in a different position at each closure and requires less opening force.... | 12/13/1988 |
| 4672992 | Direct drive valve-ball drive mechanism Ball drive mechanism includes a ball-like member on an eccentric output shaft of a rotary force motor which is received in a transversely extending cylindrical socket on a valve member. The outer diameter of the ball-like member is substantially the same ... | 06/16/1987 |
| 4627461 | Self cleaning valve A self-cleaning valve has its closure member rotated against a valve seat during closing, by an externally threaded spindle rotated by an actuator. The spindle has a threaded portion screwed through an internally threaded collar which is pressed by a spri... | 12/09/1986 |
| 4597408 | Rotating poppet valve system A poppet valve has a threaded end of its stem. A coiled valve spring is provided with a valve spring retainer having a central bore for the valve stem, a circular groove for the spring, and a first ball bearing race on the opposite face from the spring gr... | 07/01/1986 |
| 4573494 | Spherical ball drive mechanism for a direct drive valve Spherical ball drive mechanism for directly coupling a rotary force motor to a valve member, includes a spherical bearing assembly at one end of the valve member. The spherical bearing assembly consists of an outer race member having a concave spherical i... | 03/04/1986 |
| 4487215 | Gas venting valve Venting gas flow from a fuel tank or the like enters through tangential inlets into a spin chamber, influencing a closure ball in said chamber to spin or orbit around an upper conical wall portion of the spin chamber. The spinning action keeps the closure... | 12/11/1984 |
| 4465091 | Improved self-grinding valve An improved, motorized Lunkenheimer valve is provided having two independently actuated drive means for operating the valve, one of which moves the valve stem and disc longitudinally along the axis of the stem and the other of which rotates the stem and d... | 08/14/1984 |
| 4460009 | Valve stem actuator A valve stem actuator for a slurry valve or the like includes a support frame extending from the valve body to a linear operator having a cylinder and piston. Means are provided for connecting the piston rod to the valve stem and means reciprocally mounte... | 07/17/1984 |
| 4457325 | Safety and venting cap for vehicle fuel tanks A fuel tank cap (10,130) having a venting valve (56,56A) adapted to relieve pressure and temperature in the tank and prevent spilling fuel from the tank. A cover plate (28,28A) is automatically (34,34A) removed from the cap by excessive temperature so as ... | 07/03/1984 |
| 4346728 | Automated dual mode valve actuator A dual mode valve actuator for automatically controlling the operation of a valve comprises a first reversible drive motor and a first planetary drive assembly which operate to move the valve stem axially during a first mode of operation. The actuator fur... | 08/31/1982 |
| 4338961 | Valve for handling hot caustic alumina solution with provision for grinding A valve structure is provided which can be opened and closed under operating conditions without any adjustment in conditions existing in the system in which the valve is an element. The valve element can be turned with respect to the seat to provide for p... | 07/13/1982 |
| 4325398 | Safety and venting valves for fuel tanks carried on vehicles A tank venting, pressure and temperature relieving, and spill preventing valve for fuel tanks. The valve has a spin chamber, having generally circular cross sections and at least one side wall inlet opening that is tangentially directed with respect to th... | 04/20/1982 |
| 4245672 | Sealing valve for sludge scavenging system A drilling rig comprising a plurality of pipes connected in a row, with a drill at the lower end; the rotation transmitting bar or Kelly bar at the top end of the drilling rig must be periodically disconnected so as to install a new pipe section; the inve... | 01/20/1981 |
| 4241706 | Valve rotator assembly A rotator assembly for a poppet valve employed in an internal combustion engine employs a garter spring mounted in a circular groove concentric with the valve axis. A rotator plate rests on the garter spring so that the plate turns incrementally through a... | 12/30/1980 |
| 4175558 | Apparatus for administering parenteral liquid in sequential units provided with a ball valve float A parenteral liquid administering device includes an enlarged, liquid-holding burette-type chamber for receiving measured aliquots of liquid from a source. The burette has a bottom flow aperture with a valve controlling flow through the aperture. The valv... | 11/27/1979 |
| 4175505 | Valve rotator assembly A rotator assembly for a poppet valve employed in an internal combustion engine employs a garter spring mounted in a circular groove concentric with the valve axis. A rotator plate rests on the garter spring so that the plate turns incrementally through a... | 11/27/1979 |
| 4134372 | Valve rotating device A device for rotating a reciprocating valve executing alternating opening and closing strokes has an overrunning clutch coupled to the valve stem; a control lever; a first articulation connecting the control lever to the overrunning clutch; and a second a... | 01/16/1979 |
| 4094280 | Valve rotating device An improved garter spring actuated valve rotator device wherein annular spring damping means are included internally of the coils of the garter spring.... | 06/13/1978 |
| 4006751 | Method and apparatus for rotating hydraulic control rods A method and an apparatus for imparting rotational movement to a control rod which is reciprocably inserted in a hydraulic circuit for controlling flows of fluid pressure from a pressure source to an actuator, wherein the operating fluid pressure is by-pa... | 02/08/1977 |
| 3952922 | Precessing bottom pour stopper having swinging movement In accordance with a preferred embodiment of this invention, a precessing bottom pour stopper is used to accurately and precisely control the flow of molten metal through the tap hole which is located in the bottom of a metallurgical vessel. The precessio... | 04/27/1976 |
| 3952713 | Valve rotator A rotator for a valve which is reciprocable along a longitudinal axis between open and closed positions and which is rotatable about such axis. The rotator includes a pair of parts movable axially and rotatably relative to one another along and about the ... | 04/27/1976 |
