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| Number | Title | Issue Date |
| 8091579 | Level sensor A level sensor for providing an indication of liquid level in a container. The level sensor including an ultrasonic transducer for emitting an ultrasonic signal to the surface of the liquid and for detecting a return signal, reflected from the surface. A controller ... | 01/10/2012 |
| 8066029 | Persuasive environmental recovery system A sewer backup alarm and overflow prevention device eliminates raw sewage spills by preventing pressure buildup in sewer drains. One or more sewage level sensors may be coupled to an alarm and/or to an automatic water main shut-off valve. The level sensor may detect... | 11/29/2011 |
| 7951504 | Fuel cartridge Provided is a fuel cartridge in which a follower is prevented from being deformed and from separating even when heavy vibration is exerted onto the fuel cartridge. The fuel cartridge is detachably connected with a fuel cell main body and assumes a construction in wh... | 05/31/2011 |
| 7360545 | Dishwasher A dishwasher having an improved valve assembly is disclosed. The dishwasher includes a housing, a tub provided in the housing, an injector assembly for injecting water onto tableware positioned in the tub, and an inlet valve assembly. The inlet valve assembly includ... | 04/22/2008 |
| 7325781 | Automatic bathroom flushers with modular design A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the valve assembly that controls water flow between the inlet and the ou... | 02/05/2008 |
| 7278438 | Apparatus and process for refilling a bubbler In order to evaporate a liquid substance (3) and convey it to a user, a bubbler (1) is provided, into which a carrier gas (7) is conveyed. When a minimum level (4) has been reached, an exact quantity of the substance (3) is refille... | 10/09/2007 |
| 7270174 | Method, system and program product for automatically checking coolant loops of a cooling system for a computing environment Method, system and program product are provided for facilitating operation of a cooling system designed to provide system coolant to one or more electronics subsystems of a computing environment. The technique includes automatically checking at least one coolant loo... | 09/18/2007 |
| 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 |
| 7188822 | Enclosures for automatic bathroom flushers A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the valve assembly that controls water flow between the inlet and the ou... | 03/13/2007 |
| 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 |
| 7156363 | Bathroom flushers with novel sensors and controllers A bathroom flusher (10) includes a body having an inlet (12) in communication with a supply line and an outlet (16) in communication with a flush conduit, a valve assembly in the body positioned to close water flow between the inlet and the outl... | 01/02/2007 |
| 7129832 | High/low level alarm controller A high/low level alarm controller having ability to interface with level sensing equipment and instrumentation in a manner that isolates the controller from downstream components is presented. The controller accepts power, logic and transduced level inputs; output f... | 10/31/2006 |
| 7042362 | Apparatus for monitoring leakage of process cooling water in furnace A method and an apparatus thereof for monitoring leakage of process cooling water (PCW) in a furnace. In the method, a bellows used to deliver the process cooling water is covered by a protecting tubing, so as to protect the bellows from being corroded by the proces... | 05/09/2006 |
| 7004185 | Liquid loading techniques An improved method for loading propellants into separate tanks on a reusable launch vehicle (RLV) uses three innovative methods. The liquid loading provides three liquid transfer methods, integrated and coordinated to provide less complicated loading and unloading o... | 02/28/2006 |
| 7000467 | Method, system and program product for monitoring rate of volume change of coolant within a cooling system Method, system and program product are provided for monitoring coolant within a cooling system designed to provide system coolant to one or more electronics subsystems. The monitoring technique includes employing at least one pressure transducer to obtain multiple p... | 02/21/2006 |
| 6994928 | System and method for regulating steam pressure in a fuel cell system A system and method for regulating steam pressure. The system includes a steam source, a reformer, and a pressure regulator. The reformer includes an inlet that is in fluid communication with a steam source, and an outlet that provides a supply of hydrogen gas. The ... | 02/07/2006 |
| 6964278 | Non-invasive gauge glass liquid level sensor apparatus An apparatus is disclosed for electronically and non-invasively sensing liquid level in a boiler or other liquid-containing vessel. The apparatus, comprising a sensor and sensor integrated circuit can be uniquely designed for external attachment to any commercially ... | 11/15/2005 |
| 6938633 | Method and apparatus for supplying process liquid for machine tool The present invention provides a method and apparatus for supplying process liquid s for a machine tool, which are able to reduce the consumption power and power factor of the pump 21 to a large extent in comparison with prior arts while maintaining the effec... | 09/06/2005 |
| 6938635 | Level switch with verification capability The present invention comprises a novel level switch which may be employed to detect liquid levels within a process vessel. The level switch of the present invention is self validating so that manual testing is not required in order to ensure proper operation and sw... | 09/06/2005 |
| 6932097 | Acoustic control of the composition and/or volume of fluid in a reservoir The invention provides a device for controlling the composition and/or volume of a fluid within a reservoir. The device includes a reservoir adapted to contain at least one fluid, a means for monitoring a characteristic of the fluid contained in the reservoir, and a... | 08/23/2005 |
| 6910498 | Liquid level controller A liquid level control system for detecting and responding to changes in the level of liquid in a container. The system includes a transmitter in radio communication with a receiver, which is in turn connected to a valve assembly. The transmitter unit is programmabl... | 06/28/2005 |
| 6868861 | Level control system for sheet casting process A level control system for controlling the thickness of a work material in a slurry form cast upon a moving belt includes a fluid reservoir disposed above the belt, a sensor lens assembly for sensing the slurry height within such reservoir, and a control valve for a... | 03/22/2005 |
| 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 |
| 6799471 | System and method for conditioning and detection of moisture damage in asphalt mixes Apparatus and methods for detection of susceptibility to moisture damage for asphalt mixes. A sample of asphalt mix is placed inside a chamber, which is partially filled with water. An increased air pressure is applied to the chamber. A controlled evacuation of the ... | 10/05/2004 |
| 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 |
| 6591862 | System and method for carrying out column tests under hydrostatic pressure A closed ƊPstat -installation is disclosed for the potential-independent control of the pressure difference for continuous column tests under high hydrostatic pressure, as well as a pressure difference control process useful in particular for ... | 07/15/2003 |
| 6311711 | Method of regulating the level in a buffer tank The disclosure relates to a method of regulating the level in a buffer tank (4). By means of conduits (2, 6), the tank (4) is connected to different parts in or peripheral to a process (1). There is an inflow F1 in the incoming conduit (2) and ... | 11/06/2001 |
| 6305404 | Device for regulating the contents of a container A device for checking the contents of a container (5) for a supply substance (8) that is not self-leveling. The device includes a stirring blade (2) that is rotatable about an axis of rotation (D) for the delivery of the supply substance (8) to a consumer... | 10/23/2001 |
| 6303005 | Process and device for producing high-purity liquid chemicals For a process for producing high-purity liquids, particularly liquid chemicals, by distillation it is proposed that the liquid to be purified (1) is heated by microwave radiation (5) preferably in the uppermost layers. To implement this process a device w... | 10/16/2001 |
| 6208943 | Fluid flow measurement correcting system and methods of constructing and utilizing same An apparatus for calculating fluid flow in a channel including a very low profile probe which detects fluid depth in the channel; a mechanism for measuring average fluid velocity in the channel; a mechanism for correcting the detected fluid depth based up... | 03/27/2001 |
| 6155107 | Engine oil level detector for a vehicle An engine oil level detector, which includes a casing, a cover covered on the casing and defining two communicated air chambers, a diaphragm covered on the air chambers of the cover, the diaphragm having first and second tubular coupling portions, an elec... | 12/05/2000 |
| 6123765 | Continuously fed single bubbler for epitaxial deposition of silicon A delivery system and method for providing a gaseous chemical is provided. The system comprises a single bubbler 12 having a chamber 13 for containing a liquid chemical, at least one inlet tube 14 for providing a carrier gas to said chamber, and one outle... | 09/26/2000 |
| 6085652 | Ink fountain with a fountain roller in the inking mechanism of printing presses An ink fountain with an ink-duct roller in the inking mechanism of printing presses, with a device for filling printing ink into the ink fountain, is described. The device for filling ink is mounted on a sled so that it can be moved back and forth in the ... | 07/11/2000 |
| 6026843 | Valve box manifold system and distribution method A valve manifold box system and method in which one or more dispense units dispense chemical to a plurality points of use. A fluid circuit is provided with valve manifolds connected in series by double walled conduits known as containment pipes. The fluid... | 02/22/2000 |
| 6019114 | 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... | 02/01/2000 |
| 5992447 | Device for filling vinyl lined pools A device for filling a swimming pool having a liner and a shell includes a water supply valve to control the flow of water into said swimming pool; a vacuum pump to evacuate air from the space between the liner and the shell as the swimming pool is being ... | 11/30/1999 |
| 5966311 | Method of overfill probe identification and control A fail-safe fluid transfer control apparatus has full redundancy in the response to various inputs such as overfill probe signals, ground detection signals, and the like. Independent microprocessor controllers independently evaluate the inputs and each ou... | 10/12/1999 |
| 5921428 | 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... | 07/13/1999 |
| 5904169 | Apparatus for and method of treating substrate An apparatus for treating a substrate with a predetermined treatment liquid includes: a first storing portion for storing the treatment liquid; a supplying device for supplying the treatment liquid stored by the first storing device to the substrate locat... | 05/18/1999 |
