Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7383860 | Flow control valve with two stage pintel and concentric valve seats A high resolution flow valve may comprise a first stage valve for allowing a first flow through the flow valve and a second stage valve located concentrically within the first stage valve and also connected to the inlet for allowing an additional second flow through... | 06/10/2008 |
| 7367543 | Solenoid valve for fluid flow A solenoid valve is provided that comprises a valve body having an inlet and an outlet, and a movable member for moving a valve element away from a valve seat to open the valve. The moveable member engages and moves the valve element away from the seat to an open po... | 05/06/2008 |
| 7347221 | Solenoid valve A valve assembly comprises two valves and a single solenoid actuator with only one magnetizing coil that controls both valves. The corresponding magnetic circuit comprises a yoke with only two pole pieces. The valves are arranged concentric to one another. The valve... | 03/25/2008 |
| 7278557 | Pressure container for viscous substances A pressure container is used for receiving viscous substances and has an outlet valve (14) which can be displaced between a closed position and an open position. A movable valve element (18) can be moved in the direction toward the interior of the cont... | 10/09/2007 |
| 7228870 | Fuel saving valve assembly There is provided a one-way gasoline valve that is functional with conventional gasoline dispensing pumps in the United States today. An outer tubing body is open at both ends. One end is threaded to allow it to be placed into the end of a threaded gasoline dispensi... | 06/12/2007 |
| 7182099 | Tap for gas or liquid cylinder A tap for a gas or liquid cylinder is provided that comprises an inverted seat primary valve located in a main portion of a tap body and a secondary check valve spring biased into closed position and located below the lower end of a threaded section of a root end po... | 02/27/2007 |
| 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 |
| 7104276 | Valve with reversible valve seat for high-pressure pump (HP) High-pressure valve for high-pressure pump, which has a valve body with inlet and outlet, the cylinder chamber of the pump piston rod being connected to the said valve body. The inlet communicates with the cylinder chamber via a bore which houses a first valve seat ... | 09/12/2006 |
| 7036691 | Dispenser device for fitting to a receptacle provided with a valve The present invention relates to a dispenser device having: a cover; a dispenser endpiece, the dispenser endpiece having a dispenser orifice and a duct for channeling the substance flowing out from the dispenser element towards the dispenser orifice; and a pushbutto... | 05/02/2006 |
| 7011110 | High capacity co-axial gas valve A high capacity coaxial gas valve assembly having a coaxial construction with three valves, in which the assembly opens a smaller second valve prior to opening a larger first valve so that the valve can be operated by a relatively smaller and less expensive coil. In... | 03/14/2006 |
| 6981688 | Flow control device A flow control device includes an opening part through which an upstream side of a fluid flow passage is in communication with a downstream side of the fluid flow passage. A valve element closes the opening part and includes a large flow rate controlling valve eleme... | 01/03/2006 |
| 6974120 | Solenoid fuel drain valve A solenoid fuel drain valve (2) comprising a valve body (4), having a drain hole (20) and an air inlet opening (22), a solenoid coil (10) and a piston, the drain hole (20) having a drain inlet (20) and a drain outlet ... | 12/13/2005 |
| 6957661 | Valve with pressurization rate reduction device A valve includes a housing assembly, a stem assembly and a surge suppression device. The surge suppression device includes an initial flowpath between the valve inlet and the outlet, a primary flowpath between the inlet and the outlet, a first valve assembly and a s... | 10/25/2005 |
| 6901962 | Surge prevention device A surge prevention valve may be used to prevent the formation of an initial surge of high pressure. The valve may be located, for example, between a high pressure gas cylinder and a medical pressure regulator. The valve is provided with first and second valves locat... | 06/07/2005 |
| 6843271 | Fuel tank pressure control valve including an integrated sensor A device for controlling fluid flow between an evaporative emission space of a fuel tank and a fuel vapor collection canister that includes a housing, a valve, a seal, an electric actuator, an electric transducer, and an electrical connector. The housing includes a ... | 01/18/2005 |
| 6729351 | Expanded range multiple-stage metering valve An expanded-range pintle valve comprising a plurality of stages. Each stage comprises a valve seat and head capable of regulating flow through the valve over its own dynamic range. The valve head of a higher-flow stage includes the valve seat for the next-lower flow... | 05/04/2004 |
| 6663194 | Solenoid valve for brake systems A solenoid valve for brake systems, including a spool movably set in a valve housing, provided along its central axis with the first orifice which has a predetermined diameter, and provided at a position around the plunger with a plunger guide having a pr... | 12/16/2003 |
| 6581621 | Valve and fuel tank provided with a valve for a motor vehicle The invention relates to a valve and a fuel tank provided with a valve for a motor vehicle. Bleeder valves for integrated compensation volumes for fuel tanks are known in the prior art. One disadvantage of known valves is that if the tank is filled slowly... | 06/24/2003 |
| 6491056 | Sprinkler alarm test and drainage device for fire protection systems A combined alarm test and drain device for a fire protection sprinkler system is disclosed. The apparatus is based on a globe valve and has certain specific modifications for the purposes of draining the system and allowing for flow through a specifically... | 12/10/2002 |
| 6371149 | Shuttle valve assembly and improved shifting thereof A fluid pressure device including a housing (13) defining a high pressure port (31) and a low pressure port (33). The housing defines a shuttle bore (35) and disposed therein is a shuttle valve assembly (51) including a shuttle spool (63). The shuttle spo... | 04/16/2002 |
| 6338445 | Fuel injector A fuel injector comprising a nozzle body having a first bore defining first and second seatings, an outer valve needle being slidable within the first bore and engageable with the first seating to control fuel flow from a first outlet opening. The outer v... | 01/15/2002 |
| 6309033 | Switchable orifice solenoid with plate valve for an anti-lock brake system A switchable solenoid valve is disposed between the master cylinder port and the wheel caliper port for an anti-lock brake system. The switchable solenoid valve includes a valve housing, a valve seat that includes a center orifice and a plurality of perim... | 10/30/2001 |
| 6196258 | Pressure control valve and evaporation fuel discharge control device The pressure control valve is structured such that a first port is formed on one side of a casing, a second port is formed on the other side, and, in the casing, there are disposed not only a positive pressure valve which, when the pressure on the first p... | 03/06/2001 |
| 6192922 | Airflow control valve for a clean room An airflow control valve for a clean room having a duct section with a damper positioned within the duct. The damper being capable of an adjustment from an open position to a closed position. The opening and closing of the duct is accomplished through a m... | 02/27/2001 |
| 6092783 | Pressure regulating valve with optimized deaeration An electropneumatic pressure regulating valve has an electromagnet fastened, as an actuating drive, to a valve housing. At least one work connection and a deaeration connection in the valve housing are guided, respectively, to a work chamber and deaeratio... | 07/25/2000 |
| 5941424 | Valve device for a compressed gas container The valve device includes a valve body (3) having an interior chamber (12) and slidably mounted in an outer housing (18) provided with a first gas passage (19) for compressed gas and a second gas passage (20) connectable with the first gas passage (19) wh... | 08/24/1999 |
| 5901745 | Multi-solution dispensing valve A dispensing valve arrangement is provided which includes a series of pinch valves and their respective deformable hoses. A pair of actuating mechanisms is provided so that some of the pinch valves first move to full flow position before other pinch valve... | 05/11/1999 |
| 5878773 | Auxiliary flow path valve A Flow control valve for a pump suction line permitting flow from an alternate source in the event of partial or complete blockage of a main source. The valve includes a valve housing having a main inlet port at one end, on auxiliary inlet port at its oth... | 03/09/1999 |
| 5782269 | Soft seal poppet type check valve A check valve normally blocks fluid flow from a bore to a passage and includes a spring normally holding a ball in sealing engagement with a valve seat to form a primary metal-to-metal hard seal. Another spring normally holds a poppet in engagement with a... | 07/21/1998 |
| 5649567 | Sealing arrangement, for use with, and in combination with, a steam and fuel oil control and furge valve, and a valve seat therefor A circular body, having a throughgoing orifice, an externally threaded periphery, and a pair of stepped recesses, defines a valve seat for a reciprocating piston. A retaining ring is made fast in one of the recesses, and a seal which contracts upon coolin... | 07/22/1997 |
| 5460203 | Air valve A trigger operated air valve suitable for controlling both the flow of air to and the flow of feedback air from a nozzle assembly in high volume low pressure (HVLP) spray guns. A trigger moves a spindle against the pressure of a spring. As the trigger is ... | 10/24/1995 |
| 5449023 | Multi-fluid flow control device A multi-fluid flow control device comprising an elongate horizontal body with front and rear ends, a fluid-conducting chamber in the rear end portion of the body, fluid inlet and outlet openings communicating with the chamber, an elongate bore in the body... | 09/12/1995 |
| 5287887 | Handle operated flow control valve A handle operated flow control valve has a body that defines first and second spaced inlet passages that extend from spaced first and second inlets and join in the vicinity of a first flow control valve for ducting pressurized flows of fluid from one or b... | 02/22/1994 |
| 5226452 | Drain plug for a hydraulic circuit The invention relates to a drain plug for a hydraulic circuit, comprising, in a body (22), a shut-off element (40) permitting or preventing the communication between two subcircuits (I, II). According to the invention, it comprises at least one second shu... | 07/13/1993 |
| 5165443 | Double block and vent valve system with improved flow handling feature A double block and vent valve comprises a housing having an inlet and an outlet for introducing and discharging fluid to and from the valve and is defined at its ends by a first portion and an opposite second portion. The valve includes a flow directing t... | 11/24/1992 |
| 5135032 | Slurry gate valve A slurry gate valve incorporating dual gates for the positive interruption of fluid flow through a pipeline associated with the valve. The dual gate valve is movable through three positions: a fully open position, a half open position, and a full closed p... | 08/04/1992 |
| 5090451 | Combination steam and fuel oil supply and purge valve with recirculation feature An improved combination steam and fuel oil supply and purge valve has a steam valve and actuator member which provides for a closed position, a purge operation with communication established between a steam supply line and a discharge line leading to an o... | 02/25/1992 |
| 5048563 | Steam and fuel oil supply and purge valve with cooling steam feature A steam and fuel oil supply and purge valve has a steam valve and actuator member which provides for a closed position, a purge operation with communication established between a steam supply line and a discharge line leading to an oil burner, a burner op... | 09/17/1991 |
| 4863068 | Post-mix drink dispenser A touch faucet post-mix drink dispensing system for simultaneous dispensing of syrup and soda with a single valve chamber and two poppets in tandem. The poppets are spaced for positive seating and sequential opening of the soda and syrup flow paths with a... | 09/05/1989 |
| 4798223 | Double block and vent valve system A valve assembly for use in the passage of fluid in a conduit system wherein the valve assembly possesses an actuator part and a valve part for controlling the flow of fluid therein while simultaneously providing means for purging any residual fluid trapp... | 01/17/1989 |
