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| Number | Title | Issue Date |
| 7338606 | Arrangement and method for maintaining a minimum flow velocity in the coolant return of a machine tool coolant filtration system An arrangement and method for maintaining a minimum flow velocity in return piping receiving dirty coolant from a plurality of machine tools receiving filtered coolant from a filter apparatus. A bypass line diverts clean coolant into the return piping via a pressure... | 03/04/2008 |
| 7311005 | Method and device for continuous measuring of dynamic fluid consumption, including pressure regulator In a method for continuous measuring of dynamic fluid consumption, particularly fuel, the pressure beyond the flow sensor is adjusted to a constant value by means of a pressure regulator by using a continuously-operating flow sensor with variable pressure drop, pref... | 12/25/2007 |
| 7172689 | Arrangement and method for maintaining a minimum flow velocity in the coolant return of a machine tool coolant filtration system An arrangement and method for maintaining a minimum flow velocity in return piping receiving dirty coolant from a plurality of machine tools receiving filtered coolant from a filter apparatus. A bypass line diverts clean coolant into the return piping via a pressure... | 02/06/2007 |
| 6948513 | Integral check valve for nozzles A check valve for use in a section of a liquid flow line to control the intermittent flow of a liquid through the line, wherein the section of the line that is configured to received the valve has inlet and outlet ends with an opening through which liquid respective... | 09/27/2005 |
| 6934976 | Toilet flusher with novel valves and controls A tank-type flusher includes an intake valve, i.e., a fill valve, a diaphragm-operated flush valve, and a pressure control mechanism. The intake valve is connected to an external water source and is constructed to close water flow to a water storage tank at about a ... | 08/30/2005 |
| 6924004 | Apparatus and method for synthesizing films and coatings by focused particle beam deposition A particle beam deposition apparatus includes a particle source for generating a plurality of particles in suspended form, an expansion chamber, and a deposition chamber connected to the expansion chamber by an aerodynamic focusing stage, and containing a substrate.... | 08/02/2005 |
| 6748932 | Fuel regulator for natural gas fired co-generation unit A natural gas fuel regulator for a natural gas fueled internal combustion engine for driving a co-generation plant, which allows exhaust recycled gas combustion while maintaining lower head temperatures to reduce thermal NOx emissions. The gas regulator h... | 06/15/2004 |
| 6551504 | Valve for a fluid treatment system A valve in a fluid treatment system adapted for controlling the flow of fluid between a source and a treatment media disposed in a treatment chamber. The valve includes a housing having a fluid passageway between an inlet and an outlet; a containment cham... | 04/22/2003 |
| 6514232 | Vacuum adjustment valve, particularly for thoracic drainage devices A vacuum adjustment valve, particularly for thoracic drainage devices, which comprises a valve body arranged in the air intake duct and tuning a first region connected to the intake duct and a second region connected to the drainage device. A regulator is... | 02/04/2003 |
| 6328056 | Proportional bypass valve with dual variable orifice An unbalance compensated bypass valve (14, 21, 23) for a gas turbine engine fuel supply system is responsive to the fuel pressure differential across a fuel metering valve (15) to open and close a bypass orifice (37, 39, 41; 89, 91, 93; 99, 101, 103). The... | 12/11/2001 |
| 6318405 | Fuel pressure regulator with fluidic assist A pressure regulator body having an inlet port and and an outlet port having a pressure regulator valve disposed in said pressure regulator body, said valve being moveable between and open and a closed position and being responsive to open or close the va... | 11/20/2001 |
| 6179020 | Fluid level controlled automatic shutoff valve The present fluid level controlled automatic shutoff valve is comprised of a tubular housing with an axial bore which has an upstream closure, a downstream opening, and an annular piston seat at the downstream opening. A movable piston is positioned in th... | 01/30/2001 |
| 5988911 | Soap and water dispensing system A washing soap dispensing system and method of manufacture comprising a wand adapted for the discharge of water therefrom in a second mode of operation and for the discharge of water and soap in a first mode of operation. The washing wand is constructed w... | 11/23/1999 |
| 5970977 | Demand regulator having adjustable air flow A demand regulator for self-contained underwater breathing apparatus has a housing and a cover forming a breathing chamber with a mouthpiece. A diaphragm on the chamber is movable with changes in pressure due to user inhalation demand. An inlet valve coup... | 10/26/1999 |
| 5735309 | Low pressure gaseous fuel pressure regulator for turbocharged gaseous fuel engines A gaseous fuel pressure regulator includes a moveable diaphragm that subdivides the regulator housing into a pressurized gas chamber and a reference pressure control chamber. A coil spring in the control chamber exerts a control force on the diaphragm in ... | 04/07/1998 |
| 5433237 | Dedrooped bypass valve A differential pressure regulator connected in a fluid system including a bypass line and including a valve body with a high pressure inlet and a compensation inlet connected to the high pressure side of the system, a low pressure inlet, and a bypass outl... | 07/18/1995 |
| 5003780 | Fluidic valve mechanism A fluid flow sensitive valve mechanism is positioned in a valve chamber between first and second inlet-outlet ports and controls the opening and closing of a third inlet-outlet port in response to the flow of fluid to and from the valve chamber through tw... | 04/02/1991 |
| 4862912 | Valve arrangement The invention provides a valve arrangement with a pressure control valve placed on a pressure line extending between a source of fluid under pressure and a pressure system in which a constant pressure is to be maintained. The pressure control valve is abl... | 09/05/1989 |
| 4790347 | Pressure-relief valve devices A pressure-relief valve device has the stem of a valve member guided within a sealed bore of a guide piece screwed into or onto a sleeve-like housing. A spring in the housing acts on a pressure disk to create closure force on the head of the valve member.... | 12/13/1988 |
| 4693269 | Check valve assembly for pipeline system A check valve assembly of the quick shutoff type equipped with an auxiliary valve of the slow closure type, wherein the check valve assembly comprises a primary valve plate arranged within a valve housing to open and close a primary cylindrical bore in th... | 09/15/1987 |
| 4617959 | Check valve assembly for pipeline system A check valve assembly of the quick shutoff type equipped with an auxiliary valve of the slow closure type, wherein the check valve assembly comprises a primary valve plate arranged within a valve housing to open and close a primary cylindrical bore in th... | 10/21/1986 |
| 4616672 | Pressure relief and drain valve A pressure relief and drain valve includes a poppet valve on a valve body movable in a primary valve chamber between closed and open positions and spring biased to the closed position. A secondary valve slidable on the poppet valve cooperates therewith an... | 10/14/1986 |
| 4458713 | Bypass-type differential pressure regulator The pressure regulator includes a valve member which is supported to slide back and forth in a valve housing having a high pressure port, a low pressure port and a bypass port. Pressure fluid from the high pressure port is bypassed through the valve membe... | 07/10/1984 |
| 4452272 | Check valve Two check valves in series with a zone between them are mounted between the supply pipe and discharge pipe, and a relief valve vents the zone to atmosphere under predetermined pressure conditions in the pipes. A valve poppet in the upstream check valve co... | 06/05/1984 |
| 4422470 | Flow limiting valve The invention is an improved pressure compensating flow limiting valve which maintains an optimum performance curve at differing flow rates. The invention is the specific placing of a vent passage in the valve spool immediately downstream of the fluid jet... | 12/27/1983 |
| 4350179 | Valve assembly with relief groove A valve assembly for controlling the flow of fluid, has a passage for fluid flow therein and open and closed positions whereby fluid flow through said passage is respectively allowed and prevented. First and second mating surfaces define a contact area th... | 09/21/1982 |
| 4333495 | Check valve assembly A check valve assembly employs a poppet slidably mounted in a stationary barrel to engage a seat in the barrel. The poppet and barrel cooperate to form a closed chamber containing a spring which acts to close the poppet against the seat, but the force of ... | 06/08/1982 |
| 4289126 | Pressure regulator for breathing apparatus A pressure regulator for breathing apparatus which utilizes a low pressure control signal to control the inhalation of gases through the regulator. A first low pressure control valve is actuated by the diver's inhalation effort to provide a pressure signa... | 09/15/1981 |
| 4276897 | Backflow prevention apparatus Two check valves in series with a zone between them are mounted between the supply pipe and discharge pipe, and a relief valve vents the zone to atmosphere under predetermined pressure conditions in the pipes. A valve poppet in the upstream check valve co... | 07/07/1981 |
| 4244392 | Backflow prevention apparatus Two identical check valves assemblies are connected in series with a zone between them. A differential control valve vents this zone to atmosphere whenever the downstream pressure approaches the upstream pressure within a predetermined magnitude. The acti... | 01/13/1981 |
| 4244395 | Check valve assembly A check valve assembly employs a poppet slidably mounted in a stationary barrel to engage a seat in the barrel. The poppet and barrel cooperate to form a closed chamber containing a spring which acts to close the poppet against the seat, but the force of ... | 01/13/1981 |
| 4084612 | Flow compensating pressure regulator Apparatus for regulating pressure of treatment fluid being supplied to a human or animal eye during ophthalmic procedures such as cataract surgery is disclosed. Flow sensing and pressure regulating diaphragms are provided in a body to modulate a flow cont... | 04/18/1978 |
| 4079749 | Safety valve of rubber or the like suitable to be vulcanized on inflatable articles Safety valve coated or covered with rubber or the like, suitable to be vulcanized or sealed to inflatable articles, comprising a metal cap hinged or pivoted at one end thereof, which is pressed by a resilient member against a valve seating so as to provid... | 03/21/1978 |
| 3989060 | Gas pressure regulator There is disclosed a gas pressure regulator having valving means comprising an orifice sleeve slidably mounted in a bushing which is located in an aperture in a dividing wall in the regulator casing located between the inlet and outlet means of the regula... | 11/02/1976 |
