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| Number | Title | Issue Date |
| 8147210 | Electric motor in an overflow capture vessel in a tank A hydraulic assembly has a pressure medium container which at least partially encloses an electric motor, and a hydraulic pump which is driven by the electric motor using a simple, compact, and quiet design in a manner such that the electric motor is situated in the... | 04/03/2012 |
| 7972117 | Pump control system for submersible pumps A pump control system for a submersible pump is provided. The system includes a pump controller adapted to activate the pump when water has reached a high threshold level and to deactivate the pump when water has dropped to a low threshold level. The pump controller... | 07/05/2011 |
| 7806664 | Bilge pump A bilge pump having a mounting member adapted to be mounted to a vessel and a base movably engageable with the mounting member and positionable in at least two positions relative to the mounting member. A housing is releasably coupled to the base and defines a cavit... | 10/05/2010 |
| 7704050 | Immersion pump equipped with a float control device The present invention relates to a synchronous pump structure, particularly to an immersion pump (1) equipped with a float control device (3) and comprising a synchronous electric motor (2) with a permanent magnet rotor (8). The pump (... | 04/27/2010 |
| 7364414 | Fluid pump system A fluid pump system has a cover, a fluid pump and a conduit. An inside of the cover is divided into a main chamber and a sub chamber. The fluid pump is accommodated in the main chamber. The conduit extends from the fluid pump to an outside of the cover through the s... | 04/29/2008 |
| 7316049 | Apparatus and method for evacuating a liquid One version of the portable liquid-evacuation device may include: a container having a top wall, a bottom wall, a sidewall, a liquid inlet, a liquid outlet, and an air outlet, with the air outlet being connectable to a remote vacuum source; a pump positioned in the ... | 01/08/2008 |
| 7309216 | Pump control and management system A pump control and management system for monitoring and controlling sump pumps as well as providing supplemental controls and alarms. The pump control and management system includes a sump pump, a level sensing assembly, a control assembly, and at least one local se... | 12/18/2007 |
| 7285890 | Magnet retention on rotors Permanent magnets are mounted on a rotor of an electrical motor by an apparatus that keeps an adhesive bonding layer between the magnet and rotor in compression over wide variations in temperature and speed of rotation. The mechanical stresses on the magnets are con... | 10/23/2007 |
| 7278836 | Metering pump A metering pump that is capable of delivering a constant, rate of fluid over a wide range of viscosities at infinitely variable delivery rates. Two identical pumping chambers are provided with one operating in the suction mode, and the other in the discharge mode wi... | 10/09/2007 |
| 7275917 | Safety device for hydraulic pump A safety device (12) is disclosed for use in a hydraulic pump system (10). The device includes a generator (20) mounted between the power take off (14) and the hydraulic pump (24). Any time the hydraulic pump (24) is operate... | 10/02/2007 |
| 7252482 | Motor driven pump with improved motor cooling air flow An electric motor-driven pump, particularly adapted for pumping condensate from refrigeration and air conditioning systems includes a reservoir body, a reservoir cover supporting an electric motor directly connected to a centrifugal pump impeller at one end of the m... | 08/07/2007 |
| 7241382 | Method and system for filtering sediment-bearing fluids A self-cleaning, back-washable filter apparatus and method for use with a pumping apparatus which is at least partially immersed in fluid. The filter apparatus may comprise a vibration device that is powered by a flow of fluid. A method for filtering a flow of fluid... | 07/10/2007 |
| 7231839 | Electroosmotic micropumps with applications to fluid dispensing and field sampling Apparatus and methods according to the present invention preferably utilize electroosmotic pumps in fluid handling and field sampling applications. The electroosmotic pumps used in these applications are capable of generating high pressure and flow without moving me... | 06/19/2007 |
| 7224578 | Ergonomic control panel for a portable electric generator A control panel for a portable electric generator. The control panel includes three distinct zones having logically organized switches and outlets. The first zone includes those switches used most frequently. The second zone includes a plurality of 120 VAC electrica... | 05/29/2007 |
| 7216537 | Fiber optic flammable liquid measuring system An optical liquid measuring system for measuring the amount of flammable liquid in a storage tank consisting of a pair of encoder disks that are operatively connected to a pair of floats through a pair of pulley systems. The floats are designed so that the first flo... | 05/15/2007 |
| 7217104 | Method and system for liquid leak detection, notification and removal A system for detecting a collection of liquid, notifying a person or thing that liquid has been detected and pumping the liquid. The system includes a control unit, at least one sensor and relay and a pump. Preferably, the system includes a first sensor that senses ... | 05/15/2007 |
| 7131330 | Submersible pump controller An apparatus for improving the service life of a submersible probe residing in a tank includes a liquid level detector adapted to detect when a liquid in the tank rises to a first level. The first level is above the probe. A controller is coupled to the liquid level... | 11/07/2006 |
| 7121304 | Low permeation hydraulic accumulator A hydraulic accumulator includes a rigid tank containing a flexible but non-elastic bladder formed of a metal foil and separating the interior of the tank into a gas space and a liquid space. The gas and liquid spaces respectively communicate with exterior sources o... | 10/17/2006 |
| 7100632 | Sump liner A sump liner comprising a liner wall joined with a base member, the liner wall extending about the periphery of the base member, the liner wall comprising a primary reservoir portion and a secondary reservoir portion, with a weir extending from the base member and t... | 09/05/2006 |
| 7082828 | Laser measurement of liquid level in a holder Leakage detection of cargo from the hold of a barge involves a mounting plate to the top hatch of the hold. Two pipes secured to the plate extend to locations near the bottom. Each pipe has a guide tube in it coaxial with the pipe. Each pipe has a float in it receiv... | 08/01/2006 |
| 7015819 | Event notification system and wet well monitor An alarm detection device for monitoring high level signal in a wet well. The alarm detection device includes a fail safe circuit and an emulation circuit. The incoming high level signal is fed into the fail safe circuit and the emulation circuit. The emulated signa... | 03/21/2006 |
| 7012192 | Feedthrough terminal assembly with lead wire bonding pad for human implant applications A terminal assembly for active implantable medical devices includes a structural pad, in the form of a substrate or attached wire bond pad, for convenient attachment of wires from the circuitry inside the implantable medical device. ... | 03/14/2006 |
| 6955158 | Fuel container for a motor vehicle In a fuel container (1) for a motor vehicle having a plurality of chambers (2, 4), a suction jet pump (18, 19) with a filling level sensor (11, 12) is arranged in each of the individual chambers (2, 4). A valve (24, 25) is a... | 10/18/2005 |
| 6933693 | Method and apparatus of detecting disturbances in a centrifugal pump The present invention is directed to a centrifugal pump wherein voltage and current data are detected from voltage and current sensors in the motor controller of a pump motor. A power signal is then generated from the voltage and current data and spectrally analyzed... | 08/23/2005 |
| 6926502 | Combination shield and conduit box cover An apparatus comprising a driven element, a driving element operably coupled to the driven element, and a shield coupled to the driving element such that the shield at least partially covers at least one of the driven element and the driving element. The driven elem... | 08/09/2005 |
| 6910870 | High temperature pothead The present invention provides a high temperature pothead used to provide power to a submersible motor. More specifically, the present invention provides a high temperature pothead that does not require elastomeric sealing elements. ... | 06/28/2005 |
| 6854479 | Sump liner A sump liner comprising a liner wall joined with a base member, the liner wall extending about the periphery of the base member, the liner wall comprising a primary reservoir portion and a secondary reservoir portion, with a weir extending from the base member and t... | 02/15/2005 |
| 6792966 | Fuel transfer pump and control A fuel transfer apparatus for providing fuel to a vehicle engine from a plurality of fuel tanks. A transfer pump is positioned intermediate a pair of fuel tanks and is operable to transfer fuel therebetween. Fuel is provided to the engine from a first one of the two... | 09/21/2004 |
| 6767188 | Constant output fluidic system A device for conditioning of fluid to minimize pulses from a pump source. A pump drives fluid from a vented fluid reservoir through a system including a combination of an attenuation tank and one or more orifice. Fluid is pumped into a plenum chamber that supplies f... | 07/27/2004 |
| 6755623 | Floating pump assembly A floating pump assembly including a compact floatation assembly structured to float on a body of water and supporting a flow pump housing having an inlet, outlet and fluid drive assembly being submerged and wherein at least the outlet is oriented in a predetermined... | 06/29/2004 |
| 6736603 | Oil suction pump An oil suction pump includes a push switch, a shaft vertically located below the push switch, and a float arm horizontally located below the shaft. A hooked lower end of the shaft is adapted to detachably engage with a hooked first end of the float arm and thereby h... | 05/18/2004 |
| 6729847 | Bilge pump seal and float actuator A bilge pump includes an outer housing having an interior wall separating a first cavity and a second cavity, an on/off electrical switch located within the first cavity, and a single-piece float located within the second cavity and having a float body and an actuat... | 05/04/2004 |
| 6682309 | Submersible pump system The present invention is a submersible pump system that includes a main housing, which is watertight and contains a submersible pump therein. There is a liquid suction inlet connected to the main housing and adapted for functional connection to a liquid s... | 01/27/2004 |
| 6676382 | Sump pump monitoring and control system Motor speed, motor amps, float position and elapsed run time are monitored to determine whether a sump pump is in a normal condition, a jammed condition, an inadequate pumping rate condition, a dry running condition or a stuck float condition. A processor... | 01/13/2004 |
| 6638023 | Method and system for adjusting operating parameters of computer controlled pumps A system and methods for automatically adjusting pump operating parameters for at least one pump to accommodate solids encountered during a pumping operation. The output signal of a level sensor may be monitored so as to detect and account for variations ... | 10/28/2003 |
| 6632072 | Pneumatic pump control system and method of making the same including a pneumatic pressure accumulator tube A pneumatic pump control system for sequentially switching on and off an electrically operated pump disposed in a waste water liquid storage tank The pneumatic pump control system comprises a pneumatic pressure accumulator that is disposed within the liqu... | 10/14/2003 |
| 6591676 | Device for detecting the level of liquid, particularly for submersed pumps A liquid level detection device (10), particularly for submersed pumps, characterized in that it comprises means (13, 14) for detecting variation of electric and/or magnetic field in relation to the variation of the level of the liquid; the means are asso... | 07/15/2003 |
| 6568910 | Micropump The present invention generally provides a micropump that utilizes electroosmotic pumping of fluid in one channel or region to generate a pressure based flow of material in a connected channel, where the connected channel has substantially no electroosmot... | 05/27/2003 |
| 6565325 | Processor based pump control systems A pump control system incorporates a programmed processor and respond to input from multiple floats. The programmed processor can respond to detected float failures in real time by reassigning control, lag, or lead functions from a failing float to one of... | 05/20/2003 |
| 6558138 | Manual/pneumatic oil-pumping device A manual/pneumatic oil pumping device including a housing having an upper cover equipped with a manual mechanism and a pneumatic air sucking mechanism. A closing means is disposed in the upper cover corresponding to the pneumatic air sucking mechanism. Wh... | 05/06/2003 |
