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| Number | Title | Issue Date |
| 7428913 | Valve assembly having articulating rigid seating surface A valve assembly including a valve body having an orifice, and a valve member received in the valve body and movable along an axis with respect to the orifice. The valve member includes a cup in an end of the valve member and the cup has an end wall facing the orifi... | 09/30/2008 |
| 7334771 | Device for locking and/or sealing a conduit The invention relates to a blocking apparatus for blocking and/or sealing off a line for transporting—preferably hot—media, in particular dust-laden gases, preferably for blocking and/or sealing off a line for transporting hot gases which may be laden with solid... | 02/26/2008 |
| 7178553 | Leak-resistant solenoid valves A leak resistant solenoid valve comprises a valve body having an interior chamber, an inlet, an outlet, and at least one valve seat and valve plug located in the interior chamber. The valve plug has a sealing surface and is axially movable between open and closed po... | 02/20/2007 |
| 7146824 | Valve plug and valve provided therewith A valve plug is threadedly engaged with a valve stem so as to be inserted from an open end of a passage for charging with and/or releasing from a compressed fluid, toward an inner part of the passage, thereby closing an inner smaller diameter portion. The valve plug... | 12/12/2006 |
| 7090194 | Self-priming drain valve Provided is a self-priming drain valve suitable for draining liquid from a tank wherein sediment and other solid matter has accumulated. The valve includes a reverse thread, stem-down to close operation, which allows the valve stem, and attached plug, to disturb the... | 08/15/2006 |
| 7047936 | Throttle bodies and methods of manufacturing such throttle bodies A throttle body comprising a main body defining a cylindrical intake air channel and including a valve member movable between an open and a fully closed position. The valve seal surface and a contact surface are configured such that the valve seal surface sealingly ... | 05/23/2006 |
| 7003836 | Portable car ramp This portable car ramp has two structural components coupled longitudinally together, while allowing limited relative vertical movement when each's bottom edge rest on a medium surface. The first component has an elevated wheel run while the second component has an ... | 02/28/2006 |
| 5845675 | Diaphragm/spring actuated pressure relief valve with pressure balanced outlet and fail-safe operation A diaphragm/spring operated pressure relief valve having a sensing passage of substantially the same flow area as the outlet orifice of the valve whereby failure of either diaphragm results in "fail open" configuration. In addition the effective area of t... | 12/08/1998 |
| 5779223 | Valve with rolling closure member A valve for controlling the flow of a fluid, in particular a liquid, said valve comprising a closure member (1) of compact shape which is resiliently deformable, at least superficially, and which is suitable for closing or exposing a fluid flow orifice (2... | 07/14/1998 |
| 5738333 | Relief valve A pressure relief valve (10) for a pilot operated fluid system (FIG. 4) for a pressure vessel (12). Pressure relief valve (10) has a valve body (14) forming a valve chamber (16) accessible by upper cover plate (24). A cylindrical housing (32) is mounted i... | 04/14/1998 |
| 5511581 | Vent valve A tank vent valve for use with a pilot valve that comprises a vent valve body containing a nozzle, a seat plate movable within said vent valve body which seats on said nozzle to seal the valve, and an articulated stem extending from the center of said sea... | 04/30/1996 |
| 5503180 | Valve having easily replaceable seat A valve has a seat that is replaceable without disassembly of the bonnet from the body or removal of the stem and closure member. The seat is maintained in a fixed position within the body of the valve by a single retainer member that is readily separable... | 04/02/1996 |
| 5324000 | Non-rotating needle valve A needle valve having improved economy of manufacture and assembly is disclosed in which the tapered end of the needle moves axially with respect to a valve seat having a cylindrical opening but does not rotate. An adjusting means, in turn, is rotated to ... | 06/28/1994 |
| 5226453 | Ball valve A valve assembly for use in association with a water tap having a valve seat (17) located in a passageway between a fluid inlet (15) and a fluid outlet (16) and having an axially recessed spindle (18) adapted for movement toward and away from the valve se... | 07/13/1993 |
| 5217200 | Solenoid valve A laminar flow control valve having a unitary housing, wherein the valve housing is coupled to a housing for an electrically powered solenoid device. The poppet is loosely secured to the valve stem by use of a magnet, which permits lateral movement betwee... | 06/08/1993 |
| 5133938 | Lockable valve mechanism for sample pouch A lockable valve mechanism for introducing a liquid sample into an associated reaction vessel includes a valve body, and a valve member rotatably mounted thereon. The valve member is movable from an open position, wherein inlet and outlet passages of the ... | 07/28/1992 |
| 5118073 | Valve A plug valve is disclosed which has a radially outwardly directed projection at the end of the valve stem, the projection being received in a complementary cylindric chamber in the plug of the valve for easy exchange of the plug during maintenance of the ... | 06/02/1992 |
| 4998555 | Accessory faucet The faucet includes a unitary valve stem, the lower end of which is tapered and sits in a cup-shaped valve element for low-friction connection and easy rotary adjustment of the faucet outlet.... | 03/12/1991 |
| 4943033 | Flow control valve In a high pressure needle valve, a central valve stem extends through a conventional operating sleeve for effecting axial shiftig of a valve head on the inner end of the stem. The outer end of the stem is plain to receive a push-fitted retainer, and a dis... | 07/24/1990 |
| 4810471 | Vacuum manifold for extraction processing A vacuum manifold for solid phase extraction of a plurality of liquid samples from reagent tubes removably connected by valves to a vacuum chamber through a removable vacuum tight cover closing. A plurality of parallel flow paths are provided through the ... | 03/07/1989 |
| 4799646 | Valve for a gas cylinder or the like A valve device for a gas cylinder or the like, characterized in that it comprises an axially mobile piston (3) within a valve-body (1) coming to bear by one end against a seat (2), the piston moving axially by means of a handwheel (4) to which it is conne... | 01/24/1989 |
| 4792119 | Valve A valve wherein the housing has an internal seat having a sealing face which surrounds a seat area that is inclined with reference to the axis of a stem for the valving element. The sealing face is tapered and forms part of a conical surface. In order to ... | 12/20/1988 |
| 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 |
| 4783051 | Magnetic valve A magnetic valve has an actuation magnet (1), whose armature (17) serves to move a valve element (23) against the action of a valve spring (21). To increase the efficiency of the actuation magnet, the valve element (23) armature (17) are connected to one ... | 11/08/1988 |
| 4759331 | Electromagnetically actuatable fuel-injection valve In an electromagnetically actuatable fuel-injection valve for injection systems of internal-combustion engines, the valve has an electromagnet, an armature, and a closure element which is operatively connected to a spring and the armature. The closure ele... | 07/26/1988 |
| 4729545 | High pressure relief valve A high pressure relief valve including a housing, an applied spring assembly, a valve seat with a seat opening, a valve poppet, a valve stem, a C-bracket, and an adjusting drive. The valve is intended for pressure relief of liquid hot-separator product wh... | 03/08/1988 |
| 4712576 | Pneumatically operated valve An improved pneumatically operated valve for controlling supply of fluid to a certain apparatus adapted to be operated for an intended purpose using the thus supplied fluid. The valve includes a valve portion on the piston rod and a flow passage of fluid ... | 12/15/1987 |
| 4671487 | Gate valve A gate valve has a housing provided with a passage embraced by a valve seat for a fluid medium, carrying solid particles, to flow therethrough. A gate is provided which is connected to a rod of a drive through a beam member. A hole in the beam member rece... | 06/09/1987 |
| 4653721 | Device for coupling the shank and the valving element of a shutoff valve to each other The valving element of a valve has an axially projecting tubular extension with an open-ended socket for one end section of a shank which has a larger-diameter cylindrical portion in the deepmost portion of the socket, a smaller diameter cylindrical porti... | 03/31/1987 |
| 4564170 | Valve closure means A closure means, for a valve, comprising communicating inlet and outlet ports and a closeable valve seat therebetween, comprising an elongated headless valve stem extending from the valve face through the seat into the inlet port and a resilient washer re... | 01/14/1986 |
| 4550896 | Valve-strainer housings and assemblies An improved valve-strainer body or housing is disclosed wherein a single structure is adapted for use as both a valve housing for globe valves, gate valves, check valves and the like, and also utilized as a casing for a strainer. The housing is sized such... | 11/05/1985 |
| 4546954 | Engine air cut-off valve The valve comprises a two-piece housing consisting of a body and a flat cover. The body is milled out to define a working chamber. A port extends through the body wall to communicate with the chamber; a second port extends through the cover wall. The two ... | 10/15/1985 |
| 4524946 | Ball valve having improved seal means A ball valve operable between a fully-open position and a closed position for regulating fluid flow includes a valve body machined and arranged with a flow passageway extending completely therethrough and receiving at each end a fluid fitting for coupling... | 06/25/1985 |
| 4522368 | Closure device A closure device connectible to a well head through which the polished rod of a rod string extends into a well tubing for operating pump means for moving well fluids to a surface flow conductor, the closure device having a tubular ram provided with a pack... | 06/11/1985 |
| 4493338 | Washerless faucet Disclosed is a removable cartridge for a fluid valve which uses a simple O-ring to seal with the housing in which the cartridge is received. The valve comprises a body member having an axial inlet opening at one end and at least one transverse outlet open... | 01/15/1985 |
| 4452423 | Magnetically actuated valve A magnetically actuated valve which includes a one-piece valve body, a linearly translatable poppet for selectively blocking an aperture in the valve body, a magnetically operable rotor, a magnetic collar or electromagnetic coil external to the valve body... | 06/05/1984 |
| 4427179 | Leveling apparatus A plurality of ramp planks of a predetermined thickness are stackable on a frame, to determine the height of the ramp. Each successive plank, in the upper direction, is shorter than the one below it. The number of planks utilized determines the height of ... | 01/24/1984 |
| 4332392 | Dual sealing ring seal with hydraulic expansion A seal for use in a cylindrical groove in a cylindrical item positioned in a cylinder such as a rotary valve where the seal is subjected to reciprocating forces as the item and the cylinder rotate with respect to each other. The seal has two adjacent pair... | 06/01/1982 |
| 4322056 | Positive closure disc valve This invention relates to a valve wherein the valve disc is actively pressured onto the valve seat for a positive closure by means of a compressive force exerted on the stem which is linked to the center of the valve disc at a slanted angle. A tensile for... | 03/30/1982 |
| 4273308 | Rotary valve A concentric rotary valve having a rotatable stem of a valve disc supported by bearing portions and metal seats mounted in a valve housing to contact metal seats on the valve disc. Clearances in directions parallel to a closed disc surface and radial of t... | 06/16/1981 |
