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| Number | Title | Issue Date |
| 8113231 | Device for controlling water level Disclosed herein is a water level controlling device for intercepting the supply of water to the water reservoir of a water purification system. The water level controlling device includes a water reservoir having a plurality of diaphragms which are provided on the ... | 02/14/2012 |
| 7597114 | Venting device A venting device including one or more seals, one or more floats, and a cap is provided. The one or more seals and the one or more floats are encapsulated by the cap. The venting device further includes a passage, which allows intake and exhaust of air from a drivel... | 10/06/2009 |
| 7412987 | Expansion tank with valve An expansion tank to be connected to a pipe system filled or with a liquid is disclosed. The expansion tank includes at least one connection opening for a liquid pipe. The tank has a main valve to close off the connection opening at a defined difference in pressure ... | 08/19/2008 |
| 7370665 | Tanks A tank which is primarily intended for spraying applications and mountable on an all terrain vehicle (“ATV”). The tank (10) includes a main tank section (11) which, in use, extends laterally of the ATV and at least one longitudinally extending arm ... | 05/13/2008 |
| 7350534 | Hollow ball valve assembly Apparatus and methods for constructing a valve comprising a sealing member and a hollow ball operable to sealingly engage the sealing member. A guide housing disposed about said hollow ball and does not constrain rotation of said hollow ball. A spring is disposed be... | 04/01/2008 |
| 7338475 | Electret enhanced automatic IV drip chamber shutoff An automatic stop valve formed in a container of a medical fluid administration system includes an electrical field that attracts the float and valve seat together to shut off flow from the exit port of the container when the fluid within the container is reduced to... | 03/04/2008 |
| 7316544 | Automatic pneumatic pump An automatic, pneumatic pump having a chamber that is gravity fed through a top opening and through a vertical tube with waste liquid. A buoyant plunger sits on an air inlet nipple, which nipple is located at the bottom of the chamber. Liquid entering the chamber ca... | 01/08/2008 |
| 7306004 | Device for the metered passage of a liquid The invention provides a device for the metered passage of a liquid, comprising a container for the liquid, which is provided with an inlet and an outlet for supplying liquid to and discharging liquid from the container, respectively, and with a bottom and upright s... | 12/11/2007 |
| 7293577 | Toilet tank plumbing fixture assembly Described is a plumbing fixture assembly 10 for a toilet tank 14 comprising an upper portion 24 that connects with a valve 18, a lower portion 26 that is adapted for engagement with upper portion 24, and an attachment pipe | 11/13/2007 |
| 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 |
| 7234527 | System and method for fail-safe disconnect from a subsea well A system and method for controllably separating a conduit into an upper portion and a lower portion. The system includes a first valve in the upper portion of the conduit above a point of separation, and a second valve in the lower portion of the conduit below the p... | 06/26/2007 |
| 7222638 | Vortex minimizing fluid gathering and transferring apparatus A liquid gathering and transferring apparatus for gathering liquid from a liquid source containing a quantity of liquid having a liquid surface and containing debris and discharging the liquid into a liquid receiving location includes an intake chamber having a cham... | 05/29/2007 |
| 7210494 | Valve and method for producing a valve A valve and a method for producing a valve, in particular for coolant circuits, having a valve seat (2) including a valve seating element (1) for a valve body (3) by stamping the pole shoe to form at least one sealing surface (8) to avoid... | 05/01/2007 |
| 7114699 | Combination valve and regulation for use with pressurized gas cylinders, particularly oxygen cylinders A valve apparatus, and combined valve-regulator apparatus, for safely regulating the flow of combustible gases such as oxygen. ... | 10/03/2006 |
| 7108068 | Floating plate back pressure valve assembly A back pressure valve assembly for use in a well casing string. The valve assembly comprises a housing with a stationary and a floating plate therein. The floating plate is moveable between an open position spaced from the stationary plate and a closed position enga... | 09/19/2006 |
| 7082961 | Flood relief system An apparatus for flood relief comprising a bell shaped hollow body having a top, a bottom, a top opening suitable for attaching a hose, and a bottom opening; a base ring having a center opening, a bottom surface, a side, an adhesive material on the bottom surface, a... | 08/01/2006 |
| 7033134 | Air turbine starter having a force balanced, pressure energized, weighted check valve An air turbine starter is provided that includes a check valve assembly for placement between a first environment, at least a portion of which is at a first pressure (P1), and a second environment, at least a portion of which is at a second pressure (P | 04/25/2006 |
| 7033133 | Air turbine starter having a low differential check valve An air turbine starter is provided that includes a check valve assembly. The check valve assembly comprises a valve body, a valve seat and a valve element. The valve body includes an inlet port, an outlet port, and a flow passage extending therebetween. The valve se... | 04/25/2006 |
| 6966334 | Float valve for a christmas tree watering system The float valve has a water inlet, a perforated bottom surface and a lift valve mounted between the water inlet and the bottom surface. A float and a rocker arm are used to raise and lower the disc of the lift valve in response to a water level inside the housing. T... | 11/22/2005 |
| 6910499 | Valve assembly for pressurized fluid vessel A valve assembly for a pressurized fluid vessel such as a propane tank has a housing defining a main fluid passageway therebetween with a valve seat (734) defined in the main passageway, a main valve member (742) movable against the valve seat (734 | 06/28/2005 |
| 6886588 | Buoyancy flushing apparatus and method thereof A buoyancy flushing apparatus is disclosed which comprises a reservoir for accumulating liquid, having an inlet for receiving liquid and an outlet chamber recessed in a bottom wall of the reservoir. The outlet chamber includes an outlet for draining liquid out of th... | 05/03/2005 |
| 6874529 | Level limit valve The invention concerns a level limit valve for the fuel tank of a vehicle. Such valves serve the purpose, that upon the filling of the fuel tank, the filled quantity of the fuel is limited. The proposed level limit valve possesses a valve body 1 which can be ... | 04/05/2005 |
| 6848465 | Dual-action vent check valve A dual-action vent check valve is disclosed. The valve includes a first check valve which is responsive to elevated fluids inside the valve. A second check valve is responsive to elevated fluids external to the valve. The first check valve prevents overflow from a v... | 02/01/2005 |
| 6810904 | Lavatory flush tank silent-operating fill device A lavatory flush tank silent-operating fill device has a silencer extending along an axis and through which a stream of water flows; a number of channels are defined inside the silencer by a bundle of substantially straight, parallel tubes housed inside the silencer... | 11/02/2004 |
| 6779553 | Emergency backflow system An emergency backflow system includes a drain bowl and a holding tank fluidically connected to a utility sewer line. The holding tank is connected to the sewer line via a drain line, and the drain line can be fluidically separated from the drain bowl by a conduit ha... | 08/24/2004 |
| 6695004 | Magnetic automatic stop valve A magnetic automatic stop valve formed in a container of a medical fluid administration system has one magnetic element located in a float and another magnetic element located proximate a valve seat. As the fluid level in the container decreases, the magn... | 02/24/2004 |
| 6688330 | Silenced valve A valve (10) for a fluid tank, comprising a housing formed with one or more inlet (28) and outlet (20) ports, side walls and a seating wall (14) portion supporting a float-type valve member. The valve member is axially displaceable within the housing resp... | 02/10/2004 |
| 6615862 | Float for liquid waste disposal apparatus The object of this invention is to provide a float for a liquid waste disposal apparatus having a simple structure for enabling the content inside a container to be easily visually recognizable and allowing a faster and steadier solidification of an absor... | 09/09/2003 |
| 6564820 | Gas flow stop device The present invention provides a reliable regulating device that permits liquids, such as fuel oils, to be drained into the enclosure while preventing the flow of gases into the enclosure. The device includes a valve housing having a chamber for receiving... | 05/20/2003 |
| 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 |
| 6427719 | Hydromagnetic valve for toilets Hydromagnetic Toilet Valve, constituted by a body, a magnet cluster, an assembly consisting of shaft with a closing gasket and a floater to open and close the valve; it uses three forces: magnetic, exerted by the floater with the tank's water level and th... | 08/06/2002 |
| 6394129 | Device for preventing a fuel tank to be overfilled Device for preventing the overfilling of a fuel tank (1) provided with a filler neck and a filling vent line (6), an operational vent line (11), which leads to the outside or to a collecting tank, opening into the fuel tank above the opening into the fill... | 05/28/2002 |
| 6341618 | Plumbing stop valve and method of use A method for installing plumbing fixtures in a multi-story building having a waste stack includes a stop valve between the waste output of each fixture and the waste stack, the valve allowing the waste water to flow from the fixture toward the waste stack... | 01/29/2002 |
| 6336467 | Float and valve assembly for accumulator An improved float and valve assembly for a liquid-gas accumulator including a buoyant float having a density selected in accordance with the working pressure, a float which can be lengthened or shortened, and friction and drag is reduced by optimizing the... | 01/08/2002 |
| 6325094 | Self-metering reservoir A bubbler container assembly particularly adapted for use in vapor generating systems comprising a main outer vessel, an inner bubbler vessel, a carrier gas inlet and a vapor outlet such that the inner bubbler vessel is contained within the main outer ves... | 12/04/2001 |
| 6314988 | Flood control valve assembly A flood control valve assembly designed to be removably connected to the outer or exposed end of a drain pipe and structured to allow water to enter the drain pipe in the conventional fashion but prevent water from issuing from the open, outer end of the ... | 11/13/2001 |
| 6209570 | Automatic flush valve An automatic flush water distribution system for use in an evaporative cooling system includes a water distribution pipe adapted to be connected to a source of pressurized water. The pipe has a plurality of water distribution ports formed therein and a ve... | 04/03/2001 |
| 6138707 | Fuel storage tanks An air transfer valve is disclosed comprising a housing (8) having an inlet (21) and an outlet (22), the outlet being controlled by a first non-return, valve (28) which is biased to its closed position and the outlet being controlled by a second valve (30... | 10/31/2000 |
| 6131605 | Automatic drain for freight container A container having a floor with an upper inner face and a lower outer face is provided with a drain having a tubular housing extending between the faces and a partition formed with a hole, subdividing the housing into an upper compartment and a lower comp... | 10/17/2000 |
| 6129110 | Fluid level management system A fluid level management system for controlling a fluid level contained within a reservoir housing is described. The fluid level management system utilizes two separate predetermined fluid levels, a first and a second spaced below the first, to create a f... | 10/10/2000 |
