Patents in subclass Pumps/By Float
Parent class: Pumps
| Number | Patent title | Issue Date |
|---|---|---|
| 07316049 | 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... |
01/08/2008 |
| 07252482 | 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... |
08/07/2007 |
| 07131330 | 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... |
11/07/2006 |
| 07100632 | 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... |
09/05/2006 |
| 06955158 | 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 arranged in a... |
10/18/2005 |
| 06854479 | 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... |
02/15/2005 |
| 06792966 | 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... |
09/21/2004 |
| 06767188 | 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... |
07/27/2004 |
| 06755623 | 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... |
06/29/2004 |
| 06736603 | 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... |
05/18/2004 |
| 06729847 | 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... |
05/04/2004 |
| 06682309 | 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... |
01/27/2004 |
| 06676382 | 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... |
01/13/2004 |
| 06638023 | 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... |
10/28/2003 |
| 06632072 | 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... |
10/14/2003 |
| 06591676 | 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;... |
07/15/2003 |
| 06568910 | 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... |
05/27/2003 |
| 06565325 | 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... |
05/20/2003 |
| 06558138 | 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... |
05/06/2003 |
| 06527518 | Water-powered sump pump A water-powered sump pump that utilizes a relatively higher pressure water ported through a self-reversing valve to a reversible stroke power cylinder having a movable member mechanically coupled to a pumping chamber for movement of a... |
03/04/2003 |
| 06499961 | Solid state liquid level sensor and pump controller A liquid level controller for a device having a liquid reservoir includes a control board and a reservoir assembly. The reservoir assembly is disposed within the reservoir and includes a liquid level sensor, which is electrically... |
12/31/2002 |
| 06494226 | 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... |
12/17/2002 |
| 06474952 | Sump pump motor switch assembly A sump pump motor switch assembly for a sump pump including a motor casing and an end shield, includes a switch assembly and a housing mounted to the end shield. A cam actuator is connected to the housing and a sump pump actuation switch... |
11/05/2002 |
| 06464465 | Level control device for a wastewater collection basin A level control device is adapted for use in a wastewater pump station. The level control device cooperates with a discharge pump to control the volume of wastewater contained in the pump station. The level control device includes a... |
10/15/2002 |
| 06461114 | Switch for pedestal sump pump A pedestal sump pump includes a motor with a housing and a water-level-response system attached to the motor. The water-level-response system includes a connecting rod with upper and lower limit stops, a float, and a switch assembly... |
10/08/2002 |
| 06443715 | Pump impeller A pump impeller having a central hub and circumferentially-spaced bottom vanes extending in a direction outwardly of the hub. An annular shroud surrounds the hub in outwardly-spaced relationship thereto and provides an impeller liquid... |
09/03/2002 |
| 06435837 | Pump arrangement for liquid tanks A pump arrangement for windshield washer systems of motor vehicles includes a pump housing (30) and an impeller (32) within the pump housing (30) for pumping a liquid. The pump housing (30) includes a liquid inlet (36), and a liquid... |
08/20/2002 |
| 06390780 | Pump and controller system and method A liquid pump and controller with separate pump activation and deactivation mechanisms that are both closed detector devices is provided. The pump activation mechanism includes a float device that activates a pump motor when water within... |
05/21/2002 |
| 06375430 | Sump pump alarm A sump pump has a float operated alarm switch mounted on the top end of the pump housing for activating an alarm when water rises above a normal operating level. The alarm is in a remote enclosure with the pump power plug so that plugging... |
04/23/2002 |
| 06341944 | Motor start and float switch assembly An electrical circuit connects an electric motor of a sump pump to a power source and controls the energization of a sump pump assembly. The assembly includes a motor circuit having a sump pump motor actuation switch and a main winding... |
01/29/2002 |
| 06322325 | Processor based pump control systems A pump control system incorporates a programmed processor and responds 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... |
11/27/2001 |
| 06322326 | Modular condensate pump assembly The present invention provides an improved, modular condensate pump assembly that has a collection tank which can be disposed at any convenient location to collect liquid condensate. A removable support plate is supported on the... |
11/27/2001 |
| 06309539 | Filtration and subsurface distribution system A filtration and subsurface distribution system having a vaulted splitting device (e.g., dosing vault) in a recirculating pump tank. The recirculating pump tank houses a sand filter pump and the dosing vault houses a dosing pump. The... |
10/30/2001 |
| 06254351 | Snap-acting float assembly with hysteresis A float assembly for use in actuating a switch based on the level of a fluid includes a pivot member having a pivot axis and a switching surface. First and second floats are coupled to the pivot member so that at a first fluid level the... |
07/03/2001 |
| 06203281 | Submersible pump controller for differentiating fluids A probe is mounted on a water submersible pump or other fluid handling device housed within a vault for a transformer, elevator or the like. The probe will extend into any water which accumulates in the bottom of the vault enabling a... |
03/20/2001 |
| 6155791 | Wet/dry glycol pump automatic shut-down system An automatic shut-down system for wet/dry glycol pump thereby providing a pump protection system located in the fluid circuit between the reboiler and glycol contactor elements of a gas dehydration system. The system includes a filter or... |
12/05/2000 |
| 6148852 | Sump pit regulating valve A valve assembly that is composed of simple parts is described that is used to provide a sump pit water control device that operates due to the level of water within the sump and not by electricity. This valve assembly includes an adapter... |
11/21/2000 |
| 6149390 | Sump pump system and apparatus A submersible sump pump connected to a discharge pipe is disclosed. The sump pump includes a pedestal mounted above a sump. The pedestal includes a power cord, an indicator, and a high water alarm. The sump pump further includes a float... |
11/21/2000 |
| 6139281 | Sump pump alarm system utilizing a doorbell chime Sump pump alarms are disclosed wherein existing home alarms are utilized to provide the indication of the failure of the sump pump. In one application a RF transmitter sends a signal from the sump pump to the doorbell. In a second... |
10/31/2000 |
| 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... |
10/10/2000 |
| 6123508 | Fluid level indicator Apparatus is provided for indicating when the water level rises to a predetermined height, of the type that includes a float assembly (44) with a float that rises along a guide of a fixed housing assembly (40) until an activator (74) on... |
09/26/2000 |
| 6079951 | Bird bath fountain An animal watering system, such as a bird bath, incorporating a water reservoir, a means to automatically maintain the level of water in the reservoir by admitting fresh water thereto, an animal access basin positioned above the water... |
06/27/2000 |
| 6000913 | Low profile fuel delivery module A fuel pump module and method are provided for installation into a low profile fuel tank. A reservoir holds a substantially horizontally mounted fuel pump. A flange is mounted to the fuel tank to support the module. A link is pinned at... |
12/14/1999 |
| 5836745 | Fluid recovery apparatus and method using a motive force An apparatus for recovering fluid from a liquid formation includes a submersible pump for pumping fluid from the liquid formation. The submersible pump is coupled to an eductor defining a fluid member for receiving and transporting the... |
11/17/1998 |
| 5813838 | Optimum electrolyte level sensing method and the automatic topping up apparatus for storage wet cell The optimum electrolyte level sensing method and the automatic topping up apparatus for storage wet cell are disclosed. The difference in the conductivities between the distilled water and the electrolyte is utilized. An injection outlet... |
09/29/1998 |
| 5775877 | Submersible motor-driven pump with float switch An electric submersible motor-driven pump includes a pump housing (2) in which is located a pump motor (3) and an associated impeller (4). A separate detachable float and switch housing (6) is detachably connected to the pump housing (2)... |
07/07/1998 |
| 5765995 | Automated engine-powered pump control system An automated control system for an engine-powered pump system. The pump system includes an engine with a battery and a pump. A control unit includes: a display, engine sensors, pump sensors, fluid level sensors, engine controllers, pump... |
06/16/1998 |
| 5622477 | Switch for bilge and sump/pump with automatic float control An improved switch for bilge and sump pumps which allows a manual override switch to be connected in the positive side of the power supply and which uses a reed switch actuated Darlington type circuit both of which are protected from... |
04/22/1997 |