Assembly Mounted On And Having Reciprocating Valve Element Coaxial With Inlet Pipe Patents (Class 137/442)
  • Patent number: 10670165
    Abstract: An automatic water regulator includes a water tank component and a base component disposed thereunder. The water tank component includes a box body, a water inlet arranged in a middle portion of the box body, a spring, a sealing ring, an ejector rod sleeved by the spring and inserted into an intermediate position of the water inlet, an ejector shaft, a tray disposed on a side of the ejector rod, a floating bucket disposed at a bottom portion of the box body and away from the side of the ejector rod, and a floating bucket shaft disposed on a middle portion of the floating bucket. The base component includes a main base body and a supporting rib therein and below the tray. The sealing ring is disposed on top of the ejector rod. A bottom end of the ejector rod is connected to the floating bucket.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: June 2, 2020
    Assignee: Zhongshan Style Electric Appliances Technology Co, Ltd
    Inventor: Tao Liu
  • Patent number: 8826934
    Abstract: An apparatus for preventing backflow of a fill valve in a water toilet. The apparatus includes a fill valve for permitting and stopping supply of washing water from a hydrant into a water tank, a fixing section fixing the fill valve to an overflow pipe, a float having a packing for opening or closing an opening/closing hole of the fill valve depending on a level of water contained in the water tank, and a backflow-preventing section disposed inside the fill valve. The backflow-preventing section permits washing water to be supplied from the hydrant into the water tank, and prevents washing water from flowing back toward the hydrant. The backflow-preventing section includes a backflow-preventing member mounted to a supply pipe of the fill valve, and an operation control valve seated on a fitting protrusion of the fill valve to control an operation of the backflow-preventing member.
    Type: Grant
    Filed: January 11, 2010
    Date of Patent: September 9, 2014
    Assignee: Watos Corea Co., Ltd.
    Inventor: Tae Gwang Song
  • Patent number: 8596293
    Abstract: A water appliance including a water flow control unit for controlling a water flow. The control unit includes a flow restrictor and a leakage stop in serial fluid communication with the flow restrictor. The leakage stop cuts off the flow when a pressure difference between an inlet and an outlet of the flow restrictor is below a predetermined value.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: December 3, 2013
    Assignee: Koninklijke Philips N.V.
    Inventors: Frans Mous, Sander De Jonge
  • Patent number: 8550111
    Abstract: An overfill prevention device which includes a first tubular member, a cylindrical piston fitted within the first tubular member, a second tubular member having a cylindrical recess open, a plug arranged within the second tubular member, a float rod having a cam plate, a float connected with a lower end of the float rod, a valve body having a lower end engaged with the first tubular member, a pinion pivotally connected to the second tubular member by the pin, a toothed rack meshed with the pinion and engaged with the second tubular member, a control rod having an upper end extending into the valve body and a lower end secured to the toothed rack, a first magnet mounted at the upper end of the control rod, and a gauge mounted on the valve body and provided with a second permanent magnet and a needle operatively connected with the second magnet.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: October 8, 2013
    Assignee: Grand Hall Enterprise Co., Ltd.
    Inventor: William Home
  • Publication number: 20130228237
    Abstract: A valve assembly able to be mounted with a liquid container, the valve assembly comprising: a housing having a passageway that extends through the housing; a breather float valve mounted within the housing, the breather float valve movable between an open position to allow gas to pass through the passageway and a closed position that prevents liquid from passing through the passageway; a liquid inlet, forming part of the housing, the liquid inlet allowing fluid to pass into the housing; and an inlet float valve mounted within the housing, the inlet float valve movable between an open position that permits the flow of liquid through the liquid inlet and a closed position that prevents the flow of fluid through the liquid inlet.
    Type: Application
    Filed: February 26, 2013
    Publication date: September 5, 2013
    Applicant: Weir Minerals Australia Ltd.
    Inventor: Peter Martin Smit
  • Patent number: 8402994
    Abstract: A valve assembly (10) able to be mounted with a liquid container, the valve assembly comprising: a housing (20) having a passageway (60) that extends through the housing; a breather float valve (80) mounted within the housing, the breather float valve movable between an open position to allow gas to pass through the passageway and a closed position that prevents liquid from passing through the passageway; a liquid inlet (30), forming part of the housing, the liquid inlet allowing fluid to pass into the housing; and an inlet float valve (41) mounted within the housing, the inlet float valve movable between an open position that permits the flow of liquid through the liquid inlet and a closed position that prevents the flow of fluid through the liquid inlet.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: March 26, 2013
    Assignee: Weir Minerals Australia Ltd.
    Inventor: Peter Martin Smit
  • Patent number: 8261768
    Abstract: A device for preventing overfilling of containers, such as those intended to contain liquefied gases, includes a valve body in which a gas duct is defined and a closure. The closure is axially movable in the valve body away from and towards a valve seat in order to respectively open and shut off the gas duct. An actuator, capable of exerting a thrust, urges the closure away from the seat. The actuator includes a float, a cam mechanism and a lever mechanism. The cam mechanism exerts the thrust in an ascending phase of the float until a preimposed limit position corresponding to a maximum filling level is reached. The lever mechanism exerts the thrust in at least a first part of a descending phase of the float starting from the limit position.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: September 11, 2012
    Assignee: Cavagna Group Switzerland S.A.
    Inventor: Niels Frederiksen
  • Patent number: 8256451
    Abstract: A valve device for filling containers, particularly containers intended to contain liquefied gases, includes a valve body in which a gas duct is defined at the inlet of the container, the gas duct extending predominantly in an axial direction. A closure is axially movable in the valve body away from and towards a valve seat in order, respectively, to open and shut off the gas duct. A float type actuator, capable of exerting a thrust on a second end of the closure, is provided. A deflector cover is disposed transversely to the gas pipe and is integral with the valve body. The deflector includes a guide cavity in which a first end of the closure is slidably engaged.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: September 4, 2012
    Assignee: Cavagna Group Switzerland S.A.
    Inventor: Niels Frederiksen
  • Patent number: 8047223
    Abstract: 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 the fluid level changes in the tank. The indicator translates the rotational position of the shaft into a fluid level. The stop-fill assembly moves from an open position, where fluid can flow into the tank, to a closed position, where fluid is prohibited from flowing into the tank, depending on the rotational position of the shaft.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: November 1, 2011
    Assignee: Rochester Gauges, Inc.
    Inventors: Danny E. Swindler, Herbert G. Ross, Jr.
  • Patent number: 8025076
    Abstract: A valve assembly (10) able to be mounted with a liquid container, the valve assembly comprising: a housing (20) having a passageway (60) that extends through the housing; a breather float valve (80) mounted within the housing, the breather float valve movable between an open position to allow gas to pass through the passageway and a closed position that prevents liquid from passing through the passageway; a liquid inlet (30), forming part of the housing, the liquid inlet allowing fluid to pass into the housing; and an inlet float valve (41) mounted within the housing, the inlet float valve movable between an open position that permits the flow of liquid through the liquid inlet and a closed position that prevents the flow of fluid through the liquid inlet.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: September 27, 2011
    Assignee: Weir Minerals Australia Ltd
    Inventor: Peter Martin Smit
  • Patent number: 7793682
    Abstract: A valve assembly (10) able to be mounted with a liquid container, the valve assembly comprising: a housing (20) having a passageway (60) that extends through the housing; a breather float valve (80) mounted within the housing, the breather float valve movable between an open position to allow gas to pass through the passageway and a closed position that prevents liquid from passing through the passageway; a liquid inlet (30), forming part of the housing, the liquid inlet allowing fluid to pass into the housing; and an inlet float valve (41) mounted within the housing, the inlet float valve movable between an open position that permits the flow of liquid through the liquid inlet and a closed position that prevents the flow of fluid through the liquid inlet.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: September 14, 2010
    Assignee: Weir Minerals Australia Pty Ltd
    Inventor: Peter Martin Smit
  • Patent number: 7748402
    Abstract: A valve assembly for controlling the filling of a fluid containing vessel is provided having a valve body having a fluid inlet regulated by a valve member movable between an open and closed position within the valve body. A valve controller is provided regulating the valve position having a float pivotally mounted on a float arm and a retaining member pivotally mounted for rotation with the float arm through a limited portion of the float arm range. The retainer member engages the valve member urging it to the open position when the float reaches a predetermined low fill angle and the float arm engages and releases the retainer member when a predetermined high fill level is reached.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: July 6, 2010
    Assignee: Fester Assets Corporation
    Inventor: Yet Chan
  • Patent number: 7654281
    Abstract: 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 the fluid level changes in the tank. The indicator translates the rotational position of the shaft into a fluid level. The stop-fill assembly moves from an open position, where fluid can flow into the tank, to a closed position, where fluid is prohibited from flowing into the tank, depending on the rotational position of the shaft.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: February 2, 2010
    Assignee: Rochester Gauges, Inc.
    Inventors: Danny E. Swindler, Herbert G. Ross, Jr.
  • Patent number: 7293578
    Abstract: 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 the fluid level changes in the tank. The indicator translates the rotational position of the shaft into a fluid level. The stop-fill assembly moves from an open position, where fluid can flow into the tank, to a closed position, where fluid is prohibited from flowing into the tank, depending on the rotational position of the shaft.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: November 13, 2007
    Assignee: Rochester Gauges, Inc.
    Inventors: Danny E. Swindler, Herbert G. Ross, Jr.
  • Patent number: 7219686
    Abstract: This invention relates to a tap assembly for a liquid vessel, having an overfill protection device and a float controlled mechanical or magnetic level gauge. A single float actuates a stem of the overfill protection device as well as a rod of the level gauge. The rod of the level gauge has one end movable linearly in a valve body bore and carrying a permanent magnet for actuating a magnetic level indicator. In one embodiment a crank mechanism may be provided between a float lever and the rod of the level gauge to cause the rod to effectuate a swinging movement and simultaneously displace the rod longitudinally to cause linear displacement of the permanent magnet in the valve body bore. In another embodiment the rod may be actuated by a cam to cause axial displacement thereof without swinging motion.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: May 22, 2007
    Assignee: Torrent Trading Ltd.
    Inventors: Jean-Claude Schmitz, Privat Roderes
  • Patent number: 7028704
    Abstract: A fill valve assembly for a water tank such as a toilet tank. The fill valve assembly includes a head portion containing a valve mounted on top of a vertical water outlet tube and a float which moves vertically along the outlet tube to control the opening and closing of the valve. The float is vertically adjustable without removal or disassembly of the valve assembly in order to adjust the tank water level to a preselected position. The float includes an inverted cup-shaped structure which moves vertically along the outlet tube in response to any change in the water level. The valve contains a flexible main valve disk held in a closed position against a valve seat by water pressure in a control chamber to prevent the flow of water into the tank, and is moved to an open position upon venting of the control chamber. A pilot valve controls the pressure in the control chamber and, therefore, the movement of the main valve disk.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: April 18, 2006
    Assignee: Morgantown Plastics Company
    Inventors: Alan L. Taylor, Wallace G. McCray, Douglas S. Richmond
  • Patent number: 6874528
    Abstract: A fill valve assembly comprises a valve body extending along a longitudinal axis and defining a fluid inlet, a valve seat and at least one fluid outlet, an axially slidable valve element arranged for axially slidable movement along the longitudinal axis, into and out of sealing engagement with the valve seat, the axially slidable valve element defining a first upstream conical surface having a first surface area and a second downstream conical surface having a second surface area, greater than the first surface area, and a fill sensor operative below a predetermined fill threshold to prevent the axially slidable valve element from establishing sealing engagement with the valve seat.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: April 5, 2005
    Assignee: K.C. Technologies Ltd.
    Inventors: Meir Kozik, Mordechai Avnon
  • Patent number: 6679286
    Abstract: A compact ball tap with 1 a water level switch which comprises a guide standpipe 5 vertically arranged in a tank T, a float 6 slidably installed on the guide standpipe 5, a valve 3, a lever 4 controlling an open-close action of the valve 3 connected with the float 6, and a water level switch 29 transmitting predetermined control signals when the float 6 shifts to a predetermined water level, wherein one float 6 is shared by the ball tap 1 and the water level switch 29.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: January 20, 2004
    Assignee: Yoshitake Inc.
    Inventors: Nobuhide Kato, Hiroyuki Mizuno
  • Patent number: 6640829
    Abstract: A two-way valve is disclosed comprising at least two lateral openings which can be shut off by a piston provided with an axial orifice for the passage of gas, which piston slides axially in the casing between a position in which the openings are shut off under the influence of a spring and an open position counter to the action of the spring under the influence of the pressure of the filling gas, and a level valve activated by a float at the bottom of the casing. In order to prevent pressure from building up inside the casing after closure, the latter is provided with vent orifices. A seal member is arranged on the piston to cover or uncover the vent orifices.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: November 4, 2003
    Assignee: Torrent Trading Ltd.
    Inventor: Loll Kerger
  • Patent number: 6557579
    Abstract: A filling valve for a pressurized fluid container, including a valve body with a longitudinal bore and a side opening formed therein, a sealing assembly slidingly disposed in the valve body, the sealing assembly being formed with a bore therethrough, a valve lever pivotally attached to a portion of the valve body, the sealing, assembly including a jutting portion which protrudes in a direction generally away from a bottom portion of the valve body, a float arm attached to the valve lever, and a float mounted on the float arm, wherein when the float is positioned at a generally obtuse angle with respect to a longitudinal axis of the valve body, the jutting portion of the sealing assembly is raised and supported by the valve lever, such that the sealing assembly is raised and does not block the side opening thereby permitting fluid flow through the side opening, and wherein when the float is sufficiently buoyed by a fluid, the float arm swings upwards and the jutting portion of the sealing assembly is no longer
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: May 6, 2003
    Assignee: K.C.Technologies Ltd.
    Inventor: Meir Kozik
  • Patent number: 6536465
    Abstract: The limitor includes a tubular valve body that houses a poppet valve axially moveable between opened and closed positions by an external float. The poppet is protected from direct engagement with incoming pressurized liquid by an overhead deflector that diverts incoming liquid radially outwardly into an annular region around the deflector so that the liquid can pass through a port underlying and spaced below the poppet. This prevents premature closing of the valve. Preferably, the limitor is constructed from a main support tube that becomes attached to the tank and a valve subassembly that is threadably joined with the tube and projects down into the interior of the tank during use. Alternative embodiments are disclosed, including drop tube versions, for facilitating initial installation of the limitor on the top wall of a tank.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: March 25, 2003
    Assignee: Clay and Bailey Manufacturing Company
    Inventors: Donald R. David, Francis L. Miller, Ronald W. Borst
  • Patent number: 6523564
    Abstract: An aboveground tank auto-limiter is provided for preventing the overflow of fluid via storage tanks. The auto-limiter includes a valve assembly insertable downward through the top of a fill pipe of the fuel storage tank. The valve assembly has a cylindrical valve housing providing a fluid flank passage directing fuel downward into the storage tank under pressure. A hollow cylindrical float is provided in the valve assembly and is coaxially mounted along the outside surface of the valve housing leading into the storage tank. The float moves vertically to slide freely along the upper portion of the valve housing with the fluctuation of the fuel level within the tank. A series of linkage assemblies communicates the cylindrical float to a poppet located downstream from the float, wherein the float is upstream from the poppet. The poppet is seated in the closed position.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: February 25, 2003
    Assignee: EBW, Inc.
    Inventor: Paul Phillips
  • Publication number: 20020153044
    Abstract: The present invention relates to a float valve of an automatic water level controller for controlling the water level of various fluids. In particular, the present invention relates to a float valve of an automatic water level controller, which has plural outlets and is capable of controlling the water level. The present invention employs the plural outlets and is structured such that if a floating ball rises, a first valve is opened and a second valve is accordingly opened at a low water pressure. Therefore, a space can be maximally used by making the floating ball smaller or a supporting rod shorter. In addition, the present invention has an advantage of having no tendency to be contaminated by using a synthetic resin, having no possibility to be frozen to burst by achieving a low heat conductivity and providing consumers with economic profit by reducing manufacturing cost.
    Type: Application
    Filed: April 26, 2002
    Publication date: October 24, 2002
    Inventor: Hak Jae Lee
  • Publication number: 20020148505
    Abstract: The limitor includes a tubular valve body that houses a poppet valve axially moveable between opened and closed positions by an external float. The poppet is protected from direct engagement with incoming pressurized liquid by an overhead deflector that diverts incoming liquid radially outwardly into an annular region around the deflector so that the liquid can pass through a port underlying and spaced below the poppet. This prevents premature closing of the valve. Preferably, the limitor is constructed from a main support tube that becomes attached to the tank and a valve subassembly that is threadably joined with the tube and projects down into the interior of the tank during use. Alternative embodiments are disclosed, including drop tube versions, for facilitating initial installation of the limitor on the top wall of a tank.
    Type: Application
    Filed: April 12, 2001
    Publication date: October 17, 2002
    Inventors: Donald R. David, Francis L. Miller, Ronald W. Borst
  • Patent number: 6415813
    Abstract: A shut-off valve for a tank, including a filling tube with a filling-side valve seat and a tank-side valve seat. The seats being spaced apart from one another in a throughflow direction of the filling tube. A valve body with a sealing element is movable between the valve seats so as to butt against one of the valve seats depending on position of the valve body in the tube. A component is provided for prestressing the valve body toward the filling-side valve seat so as to seal the filling tube in relation to the filling-side valve seat in a rest position of the valve body, the prestressing component being configured so that the prestressing of the valve body can be overcome by flow pressure of a medium which is to be introduced toward the tank-side valve seat.
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: July 9, 2002
    Assignee: Volkswagen AG
    Inventor: Burkhard Kraft
  • Patent number: 6308729
    Abstract: A filling valve for a pressurized fluid container, including a tube with a longitudinal bore and a side port formed therein, a piston slidingly disposed in the tube, the piston being formed with a bore therethrough, a valve lever pivotally attached to a portion of the tube, the piston including a jutting portion which protrudes in a direction generally away from a bottom portion of the tube, a float arm attached to the valve lever, and a float mounted on the float arm, wherein when the float is positioned at a generally obtuse angle with respect to a longitudinal axis of the tube, the jutting portion of the piston is raised and supported by the valve lever, such that the piston is raised and does not block the side port, thereby permitting fluid flow through the side port, and wherein when the float is sufficiently buoyed by a fluid, the float arm swings upwards and the jutting portion of the piston is no longer supported by the valve lever and the piston moves downwards and blocks the side port, thereby prev
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: October 30, 2001
    Assignee: K.C. Technologies Ltd.
    Inventor: Meir Kozik
  • Patent number: 6293302
    Abstract: A valve assembly is provided which includes a valve member for being shifted between open and closed positions, and a control member having an operative position for maintaining the valve member in the open position until a predetermined fluid level is reached and an inoperative position to allow the valve member to shift to the closed position at the predetermined fluid level. The valve assembly is preferably a two-way valve for use with LP tanks to prevent overfilling thereof beyond the maximum predetermined fluid level. A float assembly rises and falls in substantial correspondence to the rising and falling of the fluid level in the vessel space, and an actuator of the fluid assembly shifts the control member at the predetermined fluid level to the inoperative position to allow the valve member to shift to the closed position for preventing further fluid intake into the vessel.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: September 25, 2001
    Inventors: Michael Waters, Chan Yet
  • Publication number: 20010000873
    Abstract: A filling valve for a pressurized fluid container, including a tube with a longitudinal bore and a side port formed therein, a piston slidingly disposed in the tube, the piston being formed with a bore therethrough, a valve lever pivotally attached to a portion of the tube, the piston including a jutting portion which protrudes in a direction generally away from a bottom portion of the tube, a float arm attached to the valve lever, and a float mounted on the float arm, wherein when the float is positioned at a generally obtuse angle with respect to a longitudinal axis of the tube, the jutting portion of the piston is raised and supported by the valve lever, such that the piston is raised and does not block the side port, thereby permitting fluid flow through the side port, and wherein when the float is sufficiently buoyed by a fluid, the float arm swings upwards and the jutting portion of the piston is no longer supported by the valve lever and the piston moves downwards and blocks the side port, thereby prev
    Type: Application
    Filed: December 8, 2000
    Publication date: May 10, 2001
    Inventor: Meir Kozik
  • Patent number: 6178994
    Abstract: There is disclosed a tap for compressed or liquefied gases having an overcharging prevention function, in which a gas can be directly infused/discharged into/from a gas storage tank, regardless of pressure/level of the liquefied gas inside/outside a gas storage tank, higher charging efficiency in the gas storage tank can be accomplished.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: January 30, 2001
    Assignee: Young Do Industrial Co., Ltd.
    Inventor: Chung Mu Park
  • Patent number: 6109295
    Abstract: This invention relates to an improved valve which achieves high reliability through a simplicity of design, a minimum number of parts, a unique valve seat with a two stage sealing action, and at the same time provides a large flow when in the open position, owing to a large cross section opening. The valve features an improved sealing efficiency, in that when in the closed position an increase in pressure on the valve improves the performance of the valve, rather than increasing the likelihood of a leak. The valve is designed to be used in applications which permit the flow of material beyond the valve mechanism to discharge freely, whereby the discharged material activates a float mechanism so as to permit the valve to close when the discharged material reaches a preset level.
    Type: Grant
    Filed: September 1, 1999
    Date of Patent: August 29, 2000
    Inventor: Elisseo Santana
  • Patent number: 6079438
    Abstract: A valve device for controlling the filling level of cylinders and the like ith liquefied gases, comprising an upper connecting body which can be coupled to a cylinder for liquefied gas and forming a tubular gas infeed element which ends with a coupling body which is associable with a lower connecting body in order to retain a membrane for closing openings for feeding gas into the cylinder, and a valve control element which is controlled by a float and interacts with the membrane; the device further comprising clinching means for the mutual clamping of the upper connecting body and the lower connecting body.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: June 27, 2000
    Assignee: Cavagna Group International BV Amsterdam, Succursale di Lugano
    Inventor: Carlo Cavagna
  • Patent number: 6076546
    Abstract: A valve assembly is provided that prevents overfilling of vessels, such as tanks used to hold liquified gas, beyond a predetermined maximum level. Preferably, the valve assembly is for use with an LP tank attached at the bottom of a service valve thereof. The valve assembly has a valve member controlled for shifting by a float assembly that rises and falls with the fluid level in the tank. The float assembly keeps the valve member removed from the flow of fluid through the valve housing during tank filling operations in a chamber of a diverter member until the maximum fill level is approached when the float assembly allows the valve member to begin to shift into a blocking position projecting from the diverter member restricting flow into the tank and eventually cutting it off when the maximum fill level is attained.
    Type: Grant
    Filed: March 16, 1998
    Date of Patent: June 20, 2000
    Inventor: Michael Waters
  • Patent number: 5816282
    Abstract: A ventilation device has a housing which can be connected with a fluid system to be ventilated. A float is movable in the housing, and controls a valve through an operating device for a ventilation process. The valve opens and closes a ventilation passage. The operating device has an operating magnet with exciter coil, which can be controlled electrically through a switch operable by the float. The operating magnet, with its switching part, operates to open the valve. The ventilating device can function without disturbance in operation, can be manufactured at low cost, can be used even with very high pressures, and, if necessary, can be monitored from a remote point.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: October 6, 1998
    Assignee: HYDAC Filtertechnik GmbH
    Inventors: Dieter Hornung, Victor H. Lauer, Andreas Marettek
  • Patent number: 5487404
    Abstract: The valve (30) comprises at least two lateral openings (34, 36) which can be shut off by a plug (40) provided with an axial orifice (48) for the passage of gas, which plug slides axially in the casing (32) between a position in which the openings (34, 36) are shut off under the influence of a spring (44) and an open position counter to the action of the spring (44) under the influence of the pressure of the filling gas, and a level valve (52) activated by a float (62) at the bottom of the casing (32).In order to prevent pressure from building up inside the casing (32) after closure, the latter is provided with escape orifices (50) which are associated with resilient opening means (64).
    Type: Grant
    Filed: July 12, 1994
    Date of Patent: January 30, 1996
    Assignee: Torrent Trading Ltd.
    Inventor: Leon Kerger
  • Patent number: 5427137
    Abstract: A valve to monitor the level of fluid in an above ground storage tank while the tank is being filled, cutoff the flow of fluid when the tank is in a full condition, and as long as the filling pressure is on the valve the valve will remain cutoff even if the fluid level in the tank has lowered. A relief valve to drain the fluid remaining in the filling hose after the filling pressure is off. A sight level indicator to visually show that the tank is in a filled condition. A monitoring node to be used with or without the mechanical cutoff valve in a totally controlled application where the filling person is not responsible for shutting off the filling tank truck, with two switches, one to alert that the tank is near a filled condition and the second to alert that the tank is in a filled condition.
    Type: Grant
    Filed: December 15, 1993
    Date of Patent: June 27, 1995
    Inventor: James H. Bowen
  • Patent number: 5282496
    Abstract: The tap comprises inside the cylinder, a two-way valve (30) permitting both filling and draining of the gas cylinder.The valve (30) comprises at least two lateral openings (34, 36) which can be sealed off by a sealing device (40) provided with an axial orifice (48) for the passage of gas and which slides axially in the shell (32) between a position of obstruction of the openings (34, 36), through the effect of a spring (44), and a position of opening against the action of the spring (44), through the effect of the pressure of the filling gas and a level-controlling valve (52) actuated by a float (62) at the bottom of the shell (32).
    Type: Grant
    Filed: April 2, 1992
    Date of Patent: February 1, 1994
    Assignee: Luxembourg Patent Company S.A.
    Inventor: Leon Kerger
  • Patent number: 5234019
    Abstract: A fill control valve for a pressure vessel, e.g. a refrigerant container wherein said valve is disposed within said container and includes a pair of fluid passageways wherein a one-way check valve is disposed in one of said passageways for permitting flow of liquid refrigerant from inside said vessel to a point outside of said vessel and the other of said passageways permits the filling of said vessel with liquid and gas refrigerant. Said other passageway being provided with a normally closed spring-loaded poppet valve and float activated lever means for closing said valve at a pre-determined refrigerant level in said vessel.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: August 10, 1993
    Assignee: Engineering and Sales Associates Inc.
    Inventor: Charles K. Forner
  • Patent number: 5072751
    Abstract: A valve assembly includes a tubular member, a hollow case connected to an open end of the tubular member, a linkage having a first end pivotally connected to the hollow case, a float connected to a second end of the linkage, and a control valve member movably mounted in the tubular member. A plate member is connected to the open end in the case to close the open end. The plate member has a smaller hole communicating with the open end. A narrower end of the control valve member passes through the open end and a through hole of the case, being pivotally connected to the linkage. The wider end of the control valve member is moved to close the hole of the plate member when the linkage is rotated by the float in a first direction, and to open the hole of the plate member when the linkage is rotated in an opposite second direction.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: December 17, 1991
    Inventor: I-Chien Lin
  • Patent number: 4762142
    Abstract: The float operated control valve includes a one-piece molded plastic valve body having a valve chamber, a first cylindrical extension defining an inlet chamber in communication with the valve chamber, a second cylindrical projection defining an outlet chamber in communication with the valve chamber and disposed at right angles to the first cylindrical projection and a third cylindrical projection having a cylindrical passage in which a plunger is slidably mounted. The plunger has a valve member mounted on one end thereof within the valve chamber for engagement with a valve seat surrounding a passage between the inlet chamber and the valve chamber. A diverter plate is disposed at an angle to the axis of the first and second cylindrical projections for diverting the fluid entering the valve chamber from the inlet chamber toward the outlet chamber.
    Type: Grant
    Filed: December 10, 1987
    Date of Patent: August 9, 1988
    Inventor: Joseph Tams
  • Patent number: 4729400
    Abstract: A liquid control assembly for controlling the flow of a liquid into a reservoir. A float means for shutting off the flow of liquid when the reservoir is full is provided. Also, a means for independently shutting off the flow of liquid is provided so that an easily accessible filter may be removed and cleaned.
    Type: Grant
    Filed: March 17, 1986
    Date of Patent: March 8, 1988
    Assignee: Robert Manufacturing Company
    Inventors: Benjamin D. Mendoza, William L. Wright
  • Patent number: 4615056
    Abstract: A flushing cistern includes a flushing device which is located in a liquid-containing cistern. The device includes a hollow tube and a closure member carried by the tube. The tube can be moved in the cistern between open and closed positions in which the closure member is clear of, and seals the cistern outlet. A float is mounted on the tube to hold the tube in the open position while flushing takes place and which causes the tube to resume its closed position at the end of the flush. The device also includes a float arm carrying a float. The float arm is pivoted to a control arm of the inlet valve to the cistern, and there is a detent on the tube which engages the float arm and pulls it downwardly when the flush is over, so operating the control arm and opening the inlet valve to admit further liquid to the cistern. When the cistern has again filled up, the float arm detaches itself from the detent, and permits the inlet valve to close again.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: October 7, 1986
    Assignee: Max Rudman
    Inventor: Rixwell S. Grant
  • Patent number: 4462417
    Abstract: A valve assembly, mountable on a propane or LPG cylinder, has a gate valve to regulate flow. An auxiliary valve element is movable in response to the liquid level within the tank, and to pressure differentials in the outflow direction. The auxiliary valve interrupts flow through the valve to prevent an overfill condition, or if the valve's outlet communicates with atmospheric pressure, or if the cylinder is knocked over.
    Type: Grant
    Filed: September 20, 1982
    Date of Patent: July 31, 1984
    Assignee: Sherwood Selpac Corp.
    Inventor: Joseph C. Trinkwalder, Jr.
  • Patent number: 4371000
    Abstract: A float chamber is defined within a body, which is also formed with an inlet passage for supplying fluid into the float chamber, and an outlet passage for taking fluid out from the float chamber opening into a lower part of the float chamber. A float is mounted within the float chamber so as to be movable up and down, and acts on a fluid valve for controlling fluid flow into the float chamber through the intake passage, causing the valve to open and close. The shapes of the float and the float chamber are such that the amount of fluid required to be present in the float chamber in order to float the float at the position in which it just causes the valve to be closed, in equilibrium between its weight and the buoyancy force exerted by the fluid, is independent of the angle of tilting of the float chamber within a certain tilting range.
    Type: Grant
    Filed: September 19, 1980
    Date of Patent: February 1, 1983
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Kazuo Shinoda, Keizo Higashigawa, Ken Shiozawa
  • Patent number: 4283802
    Abstract: A toilet tank has water supply and overflow ducts which are integrally formed with the base and walls of the tank. The water supply duct is connected to a water inlet at one end to supply water to the tank and has an inlet valve at its other end to control the supply of water to the tank. The overflow duct is open at its top to receive overflow water in the tank and is coupled to the toilet basin to pour the overflow water into the toilet basin.
    Type: Grant
    Filed: July 16, 1979
    Date of Patent: August 18, 1981
    Assignee: Nacional de Ceramica, S.A.
    Inventor: Andres A. Y. Icaran
  • Patent number: 4108202
    Abstract: An end of an inlet tube communicates through a tank wall with a water supply and an inner end of the inlet tube communicates through a float controlled valve with a generally vertically downwardly extending outlet tube. Thus, the tank water level through the float controls closing and opening of the valve admitting water through the inlet tube, through the valve and down the outlet tube flowing into the tank from the outlet tube lower end. The outlet tube is selectively vertically adjustable to adapt to various depths of tank by being formed of telescoped parts normally retaining a determined telescoping by a projection of one part being radially interengaged in a groove of the other part. Depending on the particular construction, the tube part telescoping may be selectively varied by either relative rotation between the parts or by disengaging and reengaging the interengagement between the parts. Through a slot and lock collar arrangement, the tube parts may be totally telescopically separated.
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: August 22, 1978
    Inventor: Adolf Schoepe
  • Patent number: 4100928
    Abstract: Telescoped inlet and outlet tubes having a valve between upper extremities thereof are each formed with end telescoped, upper and lower parts, the tube upper parts being assembled movable together and the tube lower parts being assembled movable together for simultaneously increasing and decreasing the respective tube end telescoping to selectively change the overall height of the ball cock. Positive securement in a height adjusted position against straight vertical relative movement is obtained by positive radial interengagement between the outlet tube parts with either selective relative rotation or selective release of the interengagement with re-engagement providing the height adjustment. An upper main case covers the valve assembly and an inner end of a float connected valve actuating lever projects into the upper main case to a case slot, being pivoted therein and operably connected to the valve.
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: July 18, 1978
    Inventor: Adolf Schoepe
  • Patent number: 4013092
    Abstract: A valve is provided with a longitudinally adjustable orifice and an actuating assembly which is held in the valve body by a twist-lock action configuration which permits removal of the actuating assembly without tools to obtain access to the orifice for fine adjustment of shut-off position of the valve. Gross adjustments by increments is provided in adjusting the angular relation of the float operating arm with the valve actuating arm.
    Type: Grant
    Filed: April 12, 1972
    Date of Patent: March 22, 1977
    Inventor: Abraham Isadore Reitman
  • Patent number: 3939728
    Abstract: A control device of the double lever-fulcrum type for controlling the opening and closing of a fluid valve includes a single solid shaft rotatably mounted and connected to a longer or power lever. A notch is formed in the shaft to provide a preferably flat surface, one end edge of which acts on the valve element to close the valve. The fulcrum of the device comprises the longitudinal axis of the shaft, and the shorter or thrust lever of the device comprises a radius of the shaft extending from the longitudinal axis to the one end edge of the surface formed by the notch.
    Type: Grant
    Filed: March 12, 1974
    Date of Patent: February 24, 1976
    Assignee: Tecnologia Aplicada S.A.
    Inventor: Enrique Klien Wallstein