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| Number | Title | Issue Date |
| 7757709 | Integrated jet fluid level shutoff sensor and fuel tank vent for vehicles The integrated jet fluid level shutoff sensor vent assembly is designed for use in conjunction with a non-pressurizing tank fast fill system, and to support automatic shutoff fast fill refueling of vehicles. The integrated jet fluid level shutoff sensor vent assembl... | 07/20/2010 |
| 7258130 | Integrated jet fluid level shutoff sensor and fuel tank vent for vehicles The integrated jet fluid level shutoff sensor vent assembly is designed for use in conjunction with a non-pressurizing tank fast fill system, and to support automatic shutoff fast fill refueling of vehicles. The integrated jet fluid level shutoff sensor vent assembl... | 08/21/2007 |
| 7243675 | Drop tube segments adapted for use with a liquid reservoir A drop tube segment is adapted for use with a liquid reservoir. The drop tube segment includes a conduit with an end portion and a sidewall including a sidewall portion at least partially defining an interior housing area. The drop tube segment further includes a va... | 07/17/2007 |
| 7189365 | Liquid treating equipment including a storage vessel and a discharge vessel In a liquid treating equipment to maintain a small amount of liquid to a desired liquid level with constantly supplying an additional liquid into a small capacity vessel, a storage vessel 13 to store the small amount of liquid, an injection tube 16 to ... | 03/13/2007 |
| 7156133 | Liquid replenishment system Apparatus is provided for controllably delivering liquid, preferably foam producing liquid, from a remote supply tank to a holding tank for replenishment of liquid in the holding tank. The apparatus utilizes a pressurized air source of a vehicle to supply the energy... | 01/02/2007 |
| 7146729 | Fuel vapor vent valve and method of attaching same to a tank A float operated fuel vapor vent valve has body structure with an annular mounting flange formed of material weldable to a fuel tank and the flange is spin welded to the tank. The float has surfaces thereon which slidably engage corresponding surfaces in the float c... | 12/12/2006 |
| 7140404 | Integral in tank vent construction for pressure based level monitors A method and apparatus are provided for monitoring a liquid level in a closed tank with a differential pressure sensor module disposed in a bottom portion of the tank, by routing a pressure reference tube extending from the pressure sensor module through the interio... | 11/28/2006 |
| 7068175 | Water level warning device A water level warning device for use in conjunction with a bathtub or a sink, for audibly warning a user when the water flowing into the bathtub or sink has reached a predetermined level. The warning device comprises a cylindrical tube containing a floating ball and... | 06/27/2006 |
| 7066204 | Multi-port diverter valve assembly with integral detent A multi-port diverter valve assembly with an integral detent feature includes a valve body and a diverter valve cartridge and cap combination wherein the cap includes one or more deflectable fingers positioned so as to “detent” into one or more detent recesses f... | 06/27/2006 |
| 7055546 | Fluid intake pressure regulating system A fluid intake pressure regulating system of this invention maintains the pressure of fluid entering a pump below a preselected level for avoiding undesirably high fluid discharge pressure exiting the pump. ... | 06/06/2006 |
| 7028700 | Method and apparatus for level control in a water tank of a fuel reformer The present invention provides a method and apparatus for controlling a level in a receptacle capable of storing a fluid. The apparatus includes a first valve governing ingress of the fluid to the receptacle, a second valve governing egress of fluid from the recepta... | 04/18/2006 |
| 7021375 | Methods of downhole testing subterranean formations and associated apparatus therefor Methods and apparatus are provided which permit well testing operations to be performed downhole in a subterranean well. In various described methods, fluids flowed from a formation during a test may be disposed of downhole by injecting the fluids into the formation... | 04/04/2006 |
| 6997201 | Wastewater source control system A wastewater control system for use with a sewer service line conducting a flow of wastewater from a building to a sewer main. A flow control device is installed in the sewer service line; and an actuator, in electrical communication with the sensor, is connected to... | 02/14/2006 |
| 6969460 | Graywater diverter vessel assembly A graywater diverter vessel assembly (as shown in FIG. 2) comprises a cylindrical side vessel 4 and valve diversion assembly 1, 2, 16. The device fits onto a vertical wastewater pipe 9, wherein a user can by closing the valve 1, di... | 11/29/2005 |
| 6961966 | Toilet overflow prevention device A toilet overflow prevention device including an overflow valve assembly, a control valve and a water level sensor. The overflow valve assembly is configured to selectively permit a flow of water through the valve assembly from the tank to the bowl of an associated ... | 11/08/2005 |
| 6837263 | Liquid level control system A liquid level control system including a tank; a source of liquid in communication with the tank; a pressure fluid actuated valve for controlling the flow of liquid to the tank from the source; a pressure sensor disposed in the tank to monitor the hydrostatic press... | 01/04/2005 |
| 6837262 | Non tank pressurizing fast fill receiver and system for vehicles A refueling system for vehicles including a dual valve receiver connected in fluid communication with the fuel tank, and a jet sensor inside of the fuel tank and in fluid communication with the receiver. The refueling system further includes a relief valve vent in f... | 01/04/2005 |
| 6684902 | Dual sensor liquid accumulator An accumulator for collecting a volume of a liquid, which includes controls to permit the liquid to rise in a container to a preset upper level, at which level a drain valve is opened causing liquid to flow out of the accumulator. The accumulator utilizes... | 02/03/2004 |
| 6582563 | Water purification system An improved portable water purification system with reduced leaks and the capability of automatic draining of its boiling tank, as well as to a method of preventing water spillage from a portable water purification system and a method of draining a boilin... | 06/24/2003 |
| 6467497 | Buffer box for use in a vacuum drainage system A buffer box for use in a vacuum drainage system. The buffer box defines a reservoir of known effective size which provides substantially consistently sized slugs of liquid which may be efficiently pulled up a vertical lift. The buffer box includes an out... | 10/22/2002 |
| 6164332 | In-line magnetic water manufacturing apparatus An apparatus designed to manufacture a relatively large quantity of living water for a home or business. The apparatus includes a plurality of ampuls longitudinally aligned and connected together to enable the water delivered to the upper ampul to flow in... | 12/26/2000 |
| 6082392 | Dual hose assembly and control system for truck-to-truck fuel transfer A hose assembly is provided for transmitting liquid fuel between the fuel tank of a highway truck and the fuel tank of an airport refueler. The assembly comprises inner and outer hoses. The inner hose transmits liquid fuel. A sealed passage is formed betw... | 07/04/2000 |
| 6045336 | Pump and valve for leachate extraction of heavier than water fluids In combination with a pump, a valve for operation at the interface between underlying heavier liquid and overlying lighter liquid is disclosed. The valve includes an inlet within the heavier liquid communicated from a valve seat to a conduit which typical... | 04/04/2000 |
| 6021806 | Slurry distribution system for a CMP process in semiconductor device fabrication A slurry distribution system for supplying slurry used in the planarization process of a wafer surface by chemical reaction is provided with a movable supply line having an open end which is maintained at a constant depth below the surface of the slurry i... | 02/08/2000 |
| 6000425 | Automatic remote fluid level controller A device comprising a chamber (10) with a maximum fluid level (14) established by an internal drain pipe (62) directing excess fluid to a point of disposal (44) and an internal replenishment fluid supply valve (16) providing any additional fluid required ... | 12/14/1999 |
| 5969619 | Liquid level control system In order to control the delivery of a liquid to a vessel, a liquid level control system includes a regulated supply of low pressure air delivered to an air supply tube which extends to a liquid vessel for discharging the low pressure air at a preselected ... | 10/19/1999 |
| 5900141 | Water purifier having accumulating means arranged to prevent backward water flow A water purifier generally associated with a beverage dispenser is disclosed. The water purifier includes a first conduit having a first end and a second end opposite to the first end, a second conduit having a first end and a second end opposite to the f... | 05/04/1999 |
| 5881753 | Passive fluid level controller A fluid level controller which replaces fluid lost from a container thus maintaining the fluid level in the container. It is comprised of the following major pieces: an airtight reservoir (10) with cap (14), fill stem (12), feed lube (16), and tube attach... | 03/16/1999 |
| 5871027 | Vacuum valve controller A vacuum valve controller for a vacuum sewer system having a suction pipe which is communicated with a vacuum system by opening a vacuum valve, and which is cut off from the vacuum system by closing the vacuum valve, so that soil water in a soil water bas... | 02/16/1999 |
| 5718261 | Cleaning solution dispenser for use in a water tank, and water tank capable of discharging mixture of water and cleaning solution A cleaning solution dispenser installed in a water tank 2 includes a container 3 and a tubular flow regulator 4. The container receives cleaning solution therein and is formed with a downwardly opening outlet 31. The flow regulator extends into the outlet... | 02/17/1998 |
| 5673736 | Temperature-compensated automatic stop fill for filling of tanks with liquids under vapor or gas pressure The invention described in the patent is an automatic control system which provides monitoring, supervision, and control of the process of filling of a tank or container with a liquid. The invention is applicable to cases where the liquid is handled in co... | 10/07/1997 |
| 5661855 | Reservoir fill valve control for toilet storage tanks A fill valve control system for toilet storage tanks, for preventing continued flow from a water supply thereto as a result of a flush valve leak or a tank leak, wherein the fill valve is responsive to a water level in a separate reservoir filled by a ful... | 09/02/1997 |
| 5662460 | Downhole pneumatic pump with variable bouyant actuator A pneumatic pump having a variable buoyant actuator to substantially reduce the volume of a float, thereby increasing the fluid capacity for any pump of a given size. The pump includes an elongated housing, a sealable fluid entry aperture and a pipe commu... | 09/02/1997 |
| 5649577 | Method and apparatus for automatically stopping the process of filling of a tank with a liquid under gas or vapor pressure The invention described in the patent comprises a method and an apparatus for automatically stopping the process of filling of a tank or container with a liquid, where the liquid must always be maintained under a gas or vapor pressure higher than atmosphe... | 07/22/1997 |
| 5641271 | Float operated pump including diaphragm valve assembly with bleed passage Pump (1) includes a pneumatic valve assembly (98) having a chamber (105) which is supplied by compressed air via an inlet pipe. Included within chamber (105) is a valve (109) with a chamber (111) divided into two separate compartments (112,113) by a plian... | 06/24/1997 |
| 5630443 | Buoyant body control device A control device includes a liquid reservoir and a buoyant body movable to either an upper control position or to a lower control position in response to the level of the liquid in the reservoir. The outer surface of the buoyant body includes a cavity cir... | 05/20/1997 |
| 5615701 | Vacuum valve control device and vacuum valve A vacuum control valve controls the removal of sewage or other liquid removed from a tank by a vacuum discharge pipe. The control valve uses the amount of liquid in the tank, the atmospheric pressure, and the vacuum pressure of the vacuum discharge pipe t... | 04/01/1997 |
| 5588471 | Container filling apparatus Apparatus for filling drums and other containers with a lilquid product. The apparatus can be used for both subsurface and top filling operations. The level of the liquid in the container is monitored to prevent overfilling and withdrawal of the lance at ... | 12/31/1996 |
| 5564464 | Storage tank shut-off valve An improved control valve for a holding tank is provided for cutting off the flow of fluid into a holding tank device in response to achieving a predetermined fluid level in the holding tank. The assembly includes a housing configured for placement adjace... | 10/15/1996 |
| 5519638 | Automatic system for monitoring and replenishing hazardous liquids in tanks An automatic system is disclosed which monitors and replenishes hazardous liquids in their holding tanks, as such liquids are typically used in manufacturing processes. The inventive system and method obviate the need for manual surveillance and handling ... | 05/21/1996 |
