| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 417036000 | Responsive to accumulation of pumped liquid in receiver | 41 |
| 20080219856 | Pumped Drainage Apparatus - Pumped drainage apparatus ( | 09-11-2008 |
| 20080310968 | Waste Water Lifting System - A waste water lifting system with a collecting tank ( | 12-18-2008 |
| 20090060751 | Solid State Sump Pump Control - The present invention provides a sump pump control system. The system includes a mounting fixture fabricated from a corrosion resistant material, and an electrical control comprising solid state electrical components supported by the mounting fixture. The sump pump control system also includes a diving bell cover. The diving bell cover has an open bottom, and is dimensioned to cover the electrical components. The diving bell cover is releasably secured to a support surface of the mounting fixture. The electrical control controls the operation of a sump pump. Should water rise to a level of the electrical components due to failure of the sump pump or due to quickly rising water, the diving bell cover will prevent water from contacting the electrical components. A method of removing water from a subterranean vault is also provided herein. | 03-05-2009 |
| 20090123295 | Sump pump activation switch - A switching device for submersed sump pump. The switching device employs an internal logic circuit inside a housing having a metallic member extending therefrom for mounting. The member is adapted to engage with the curved surface of a hose and hose clamp engaged to the sump pump. The member is engaged to the electrical ground to communicate a reference ground to the fluid in the sump to allow an impedance sensor to discern the fluid level and cause the logic circuit to energize or de-energize the sump pump. | 05-14-2009 |
| 20090123296 | WATER REMOVAL SYSTEM - A water removal system for removing water from an elevator pit that includes a sump, a pump, a pump input tube, a pump output tube and a switching mechanism. The sump at least partially extends below a lower surface of the elevator pit. The plump mounted outside of the elevator pit. The pump input line is operably connected to the sump and the pump. The pump output line is operably connected to the pump. The switching mechanism is mounted outside of the sump and is operably connected to the pump and the sump. | 05-14-2009 |
| 20090148306 | Capacitive liquid level sensor - Described herein is technology for, among other things, controlling a pump submersed in a liquid, where the pump includes a plurality of capacitive sensors. The capacitive sensors include a first capacitive sensor and a second capacitive sensor disposed above the first capacitive sensor. The technology involves sensing liquid levels with the capacitive sensors, activating the pump after the second capacitive sensor detects the liquid in a normal mode of operation, deactivating the pump after the first capacitive sensor no longer detects the liquid in the normal mode of operation, detecting a failure of one or more capacitive sensors, and adjusting the operation of the pump to compensate for the failure of the one or more capacitive sensors. | 06-11-2009 |
| 20090285694 | Manual liquid pump - A manual liquid pump has a drawing device, a connecting tube, an outlet gun and a detecting device. The drawing device is inserted into a container to draw liquids and has a caution shaft. The connecting tube has an inner and outer pipe. The inner pipe is mounted in the outer pipe and is connected to and actuates the caution shaft. The outlet gun has a returning valve being selectively actuated to close and prevent liquid from flowing through the outlet gun, instead forcing the liquid down the inner pipe and actuating the caution shaft to warn users to stop pumping. The detecting device is mounted in the nozzle and actuates the return valve when a liquid level is too high to prevent overfilling and spillage for safer operation. | 11-19-2009 |
| 20100166570 | METHOD AND APPARATUS FOR DETECTING THE FLUID CONDITION IN A PUMP - A pump control system which detects a fluid condition in a pump is disclosed. The pump control system may include a control event based on the fluid condition in the pump. The pump control system may detect a fluid condition in the pump by monitoring the frequency response of the pump. | 07-01-2010 |
| 20110027104 | SENSOR FOR SWITCHING A PUMP ON AND/OR OFF - The invention relates to a sensor for switching a pump on and/or off, with at least one first and a second electrode, which form a capacitance which may be influenced by way of the fluid to be delivered, and with evaluation electronics connected to the electrodes, wherein the evaluation electronics has a voltage supply which is connected to the first electrode and which is designed for providing short voltage pulses for charging the first electrode, and comprises an evaluation circuit which is designed in a manner such that during a voltage increase on charging and/or a voltage reduction on discharging the electrode, it detects the current between the electrodes and emits a switch-on signal and/or switch-off signal depending on the detected current, as well as to a pump with such a sensor. | 02-03-2011 |
| 20110064586 | CONTROLLER FOR VACUUM SUCTION TYPE URINE COLLECTOR - The conventional vacuum suction type urine collector may not be able to perform normal and automatic vacuum suction when contamination occurs between the electrodes acting as a sensor, and some users feel uneasy about the use of the urine collector as the case may be. | 03-17-2011 |
| 20110085917 | Condensate Pump - A condensate pump for an HVAC system includes a reservoir for collecting condensate water, a pump motor connected to an impeller pump for pumping the condensate water out of the reservoir, and a floatless pump controller. The floatless pump controller detects the water level in the reservoir and, based on the water level in the reservoir, controls the operation of the pump motor, and if necessary, sounds an alarm and shuts down the HVAC system. The floatless pump controller may employ an ultrasonic transducer or capacitance sensors to detect the level of condensate water in the reservoir. | 04-14-2011 |
| 20110085918 | WATER-LIFTING PUMP APPARATUS AND METHOD OF CONTROLLING OPERATION THEREOF - A water-lifting pump apparatus which is free of a discharge valve and a check valve, is low in cost, and is capable of reducing vibration and noise due to a waterfall after the end of water pumping operation. The water-lifting pump apparatus has a suction tank ( | 04-14-2011 |
| 20110262285 | Condensate Pump - A condensate pump for an HVAC system includes a reservoir for collecting condensate water, a pump motor connected to an impeller pump for pumping the condensate water out of the reservoir, and a floatless pump controller. The floatless pump controller detects the water level in the reservoir and, based on the water level in the reservoir, controls the operation of the pump motor, and if necessary, sounds an alarm and shuts down the HVAC system. The floatless pump controller may employ an ultrasonic transducer or capacitance sensors to detect the level of condensate water in the reservoir. | 10-27-2011 |
| 20120189464 | Solid State Sump Pump Control - The present invention provides a sump pump control system. The system includes a mounting fixture fabricated from a corrosion resistant material, and an electrical control comprising solid state electrical components supported by the mounting fixture. The sump pump control system also includes a diving bell cover. The diving bell cover has an open bottom, and is dimensioned to cover the electrical components. The diving bell cover is releasably secured to a support surface of the mounting fixture. The electrical control controls the operation of a sump pump. Should water rise to a level of the electrical components due to failure of the sump pump or due to quickly rising water, the diving bell cover will prevent water from contacting the electrical components. A method of removing water from a subterranean vault is also provided herein. | 07-26-2012 |
| 20120275927 | Water-leak Damage Prevention System Utilizing A Unitized Tank Collection Flange Reservoir System - Abstract of Disclosure The present invention is a method means of preventing water-leak damage to any hot water system providing means, or any water storage means such as washing machines, water storage means used in manufacturing facilities, or any water volume means where the prevention of water-leak damage is desired, vital, or essential. Water-leak damage is prevented using a collection flange reservoir system means at the base of a hot-water tank means. Said collection flange reservoir system means can be an afore added component to a hot-water tank means or a feature of OEM (Original Equipment Manufacturer) production means, which is a novel feature and further intention of the present invention. | 11-01-2012 |
| 20130115106 | AUXILIARY SUMP WATER EVACUATION SYSTEM - A sump water evacuation system that operates automatically without reliance on electricity or floats and without any need for oversight or manual intervention, using domestic water supply as the sole motive force to evacuate sump water either into a washbasin or to the exterior of the building; the system is easily installed for use with Radon remediated sump pits. A pneumatic stagnation pressure automatically signals a rising water level in a sump pit and this signal is communicated to a housing wherein the low-pressure signal is mechanically amplified to activate a tilt valve mechanism, thereby converting the pneumatic signal to a hydraulic force which in turn opens a check valve, allowing a high-pressure domestic water supply to flow through to a commercially available Venturi siphon device, causing the sump water to be suctioned out and expelled into either a washbasin or to the exterior of a building. | 05-09-2013 |
| 20130156605 | CAPACITIVE SENSOR AND METHOD AND APPARATUS FOR CONTROLLING A PUMP USING SAME - Methods relating to varying capacitance of a capacitive sensor and controlling a pump based on the level of a liquid. A pump controller for controlling the level of a liquid in a reservoir includes a controller and a capacitor. The capacitor is adapted to provide an activation signal to the controller when the liquid in the reservoir reaches a first predetermined level relative thereto. | 06-20-2013 |
| 20140161629 | Pneumo-hydraulic Sump Water Evacuation System - A system is taught for automatically siphoning water out of a sump pit or reservoir that only relies on domestic water as the sole source of motive power to automatically evacuate water from a sump pit. This pump system uses neither electricity nor floats as it mechanically amplifies a small pneumatic pressure signal—a change in air pressure—to turn on and off a higher-pressure hydraulic source such as a domestic water supply having a pressure of approximately 60 psig. The present sump pump system further teaches an eductor Venturi assembly having an annular groove in the fluid outflow conduit that creates pumping suction using the principle of differential pressure created when a fluid transitions from laminar to turbulent flow. This sump pump system operates with or without backpressure unlike some systems of this type. Importantly, the present automatic sump pump is further distinguished from other sump pump assemblies by being easy and inexpensive to install into Radon-remediated sump pits, which by code must have hermetically sealed covers. | 06-12-2014 |
| 20150044060 | Pump Control System Having Emergency Run Mode - A pump control system receives inputs from a low level fluid level sensor and a high level fluid level sensor. Based on inputs from the sensors, and in response to sensed trouble conditions, duplex pumping or pump specific simplex operation is restricted based on past and present pump current draws. | 02-12-2015 |
| 20150064022 | AUTONOMOUS WATER EXTRACTION SYSTEM AND METHOD OF USE - An autonomous water extraction system is disclosed that includes at least one solar-panel operable to convert solar energy to usable power for a sump pump to extract water from a building having no live connection to a municipal power supply. A battery is electrically coupled to at least one of the solar-panel and a power module. The battery is operable to receive and store solar energy from the at least one of the solar-panel and the power module. An inverter is electrically coupled to the battery that is operable to convert a direct current from the battery into an alternating current for powering the sump pump. The sump pump extracts water when a water level sensor detects that the water level within the building exceeds a predetermined threshold. The sump pump is placed within a sump pit. The water discharges from the building through a discharge pipe. | 03-05-2015 |
| 20150147190 | TEST AND MONITORING SYSTEM FOR A SUMP PUMP INSTALLATION OPERABLE FROM A REMOTE LOCATION - An automated system for monitoring and testing a sump pump installation includes an electrically-actuated valve which admits liquid to the liquid container in response to a valve control signal. A test control module includes a test control circuit which when actuated supplies a valve control signal to initiate a test cycle during which liquid is admitted to the container to cause the liquid level in the container to rise, after which the sump pump discharges liquid from the container until a predetermined event terminates the test cycle. An indicator circuit indicates in response to completion of the test cycle whether the test was successful or unsuccessful. A communications circuit is included which receives and verifies control signals addressed to the system from an external originator to allow a test cycle to be remotely initiated in the event of impending severe weather or other threats. | 05-28-2015 |
| 20160252086 | METHOD FOR OPERATING A PUMP UNIT, PUMP UNIT AND USE THEREOF | 09-01-2016 |
| 417038000 | By liquid pressure sensor | 7 |
| 20080292473 | High-Pressure Pump For Feeding Fuel To An Internal Combustion Engine - A high-pressure pump for feeding fuel to an internal combustion engine has a pump housing; a fuel delivery duct; and a check valve, which is arranged along the delivery duct, and comprises a fuel chamber; a valve member mobile within the fuel chamber; and a biasing and guiding assembly, which has a fastening member suitable for being fastened to the pump housing and sealing the fuel chamber in a fluid-tight manner; a helical spring suitable for biasing the valve member; and a bushing arranged about the helical spring in order to prevent bending of the helical spring. | 11-27-2008 |
| 20090129938 | Device mounting apparatus for a fluid control system - A pump control system is provided and includes a tank communicated with a flow pipe via a tank port, wherein the flow pipe communicates a fluid source with a fluid destination. A sensing device disposed in proximity to the tank port is also provided and is configured to measure a characteristic of a fluid within the flow pipe. Furthermore, a pumping device and a pump control device communicated with the sensing device via a pump control interface link is provided to receive a signal responsive to the characteristic, wherein the pump control device is configurable to control power flow between a power source and the pumping device responsive to the signal, wherein the pump control device is mounted to a support structure via a mounting device to be disposed remotely from the tank port. | 05-21-2009 |
| 20100021311 | MRI compatible programmable valve pump - An implantable drug delivery system utilizing a non-magnetic valve/accumulator metering assembly is disclosed. The solenoids of the prior art, which respond to magnetic fields, are replaced by Shape Memory Alloy (SMA) wires and associated control electronics. By exploiting the inherent characteristics of SMA wires, which can expand and contract based on their temperature, the movements required to actuate the metering assembly can be achieved. This configuration retains the benefits associated with the prior art, while eliminating the major drawback. | 01-28-2010 |
| 20100021312 | Pump Apparatus and Method - Pump apparatus and method. The pump can include a valve assembly and a diaphragm. In some embodiments, the diaphragm can include a convolute that can deform in order to increase a volume of a pumping chamber to provide an internal fluid bypass when a pressure in the pumping chamber exceeds a bypass pressure. In some embodiments, the pump can include a fluid reservoir at least partially defined by a wall with a flow-restrictive conduit in fluid communication with an outlet chamber. A shut-off switch can include an actuator in fluid communication with the fluid reservoir. The fluid reservoir and the flow-restrictive conduit can substantially isolate the shut-off switch from pressure pulses in the outlet chamber. | 01-28-2010 |
| 20140044563 | Diaphragm pumps - A diaphragm pump comprising a housing for receiving and securely holding a motor, the housing comprising an elongate portion having a closed end and an open end, the elongate portion being adapted to securely receive and house a motor; and a collar portion being provided at the open end of the elongate portion; a cover for the housing, the cover being adapted to engage with the housing; a diaphragm plate extending across the open end of the housing between the collar portion of the housing and the cover and being secured therebetween when the cover is engaged with the collar portion of the housing. The diaphragm pump also includes a wobble plate positioned within the collar portion of the housing. | 02-13-2014 |
| 20140219821 | DUAL CONTROL VALVE FOR RECIPROCATING COMPRESSOR UNLOADER SYSTEM - A continuous run controller for a dual control compressor system includes an integrated housing containing a pilot valve and a hydraulic unloader valve. Low pressure in the hydraulic oil system opens the hydraulic unloader valve such that the suction valve unloader assembly unloads the compressor. High pressure in an air receiver of the compressor system opens the pilot valve such that the suction valve unloader assembly unloads the compressor. | 08-07-2014 |
| 20150322951 | Sump Pump Remote Monitoring Systems and Methods - Systems and methods for sump pump remote monitoring can include control circuitry integrated into a portable housing, with a backup sump pump connected to the control circuitry. The control circuitry can be powered by a line power and when the line power is not available, the control circuitry can be powered by a battery power. The control circuitry can be connected to a control panel, and the control circuitry can include a pressure transducer, the pressure transducer to measure a pressure in a fluid level sensor, and based on the measured pressure, the control circuitry to adjust the speed of the backup sump pump. A wireless controller can be connected to the control circuitry, the wireless controller for wirelessly receiving monitoring instructions and wirelessly transmitting backup sump pump status data, with the control circuitry providing an indication of the backup sump pump status data to the control panel. | 11-12-2015 |
| 417039000 | With motive fluid supply communicating with liquid receiver | 1 |
| 20090123297 | Microfluidic osmotic pump - A micro-fluidic osmotic pump capable of delivering a desired fluid at a predetermined destination comprising an inside fluid reservoir housing a compressible sac, a surrounding compartment having an external surface made up of a semi-permeable membrane and a fluid duct. The inside fluid reservoir houses a compressible sac containing a predetermined amount of a fluid that is desired to be pumped to a predetermined destination. The surrounding compartment holds a desired osmotic agent and its saturated solution in the remaining volume thereof. The surrounding compartment has an outer surface made up of a semi-permeable membrane that allows a predetermined second external fluid to permeate into the surrounding compartment. The fluid duct is substantially housed within the inside fluid reservoir and runs through openings and respectively provided through the inside fluid reservoir and the surrounding compartment. | 05-14-2009 |
| 417040000 | By float | 11 |
| 20090053073 | Condensate Pump - A condensate pump for an HVAC system includes a reservoir, a unitary top support plate, and a cover. A pump motor, an impeller pump, a float, and control electronics are mounted on the unitary top support plate. The transition from the cylindrical volute chamber to the tangential output port of the impeller pump has a swept diagonal surface that creates a gradual transition from the cylindrical volute chamber to the tangential output port. The gradual transition minimizes the pulsing. An intake profile with a concave surface extends from the center of the impeller and matches a complementary intake profile extending from the bottom of the reservoir. Vortex inhibiting vanes are molded into the bottom of the reservoir adjacent the central intake port of the impeller pump to break up any induced vortex within the reservoir. | 02-26-2009 |
| 20090129939 | Apparatus for thermal dissipation and retention of float - In an improved pump assembly having a fluid reservoir into which a stationary post extends, a sensor is supported by the post and a floating member is supported for travel between upper and lower portions of the post. A magnet is supported by the floating member, the sensor responding to the position of the magnet as the floating ring member moves along the post. A float retention member is detachably supported by the post to retain the floating member on the post, the floating member having a support ring with a plurality of inwardly extending spring members disposed to grip the end of the post. A heat exchanger is supported for absorbing a portion of the thermal energy created by the pump assembly. | 05-21-2009 |
| 20090226329 | Condensate Pump - A condensate pump that provides a ventilation system that efficiently expels warm air surrounding a pump motor is disclosed. The pump has a motor-driven fan, a cover that encloses the fan, and a ventilation opening that allows for air to enter through the cover. The cover has an exhaust opening adjacent to the fan and a discharge outlet. The space between the exhaust opening and the discharge outlet defines a throat. A cutwater is adjacent to the exhaust opening for focusing air outward through the throat and expelling it from the cover through the discharge outlet. | 09-10-2009 |
| 20090246034 | 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 pressure medium container and is cooled by pressure medium without using the electric motor fan, in that the pressure medium container includes a partition which subdivides a pressure medium container interior at least partially into an intake region and a return region, and which maintains a certain level of pressure medium in the return region, and the electric motor is located in the return region of the pressure medium container. | 10-01-2009 |
| 20100129232 | FLOAT DEVICE FOR A SEWAGE PUMP - A float device for a sewage pump is a controlling switch to actuate or stop the sewage pump, wherein the sewage pump is mounted on a bottom inside a sewage tank to process waste. The float device floats along with the arising of liquid level in the sewage tank so that a magnet element inside attract with a corresponding metal part on the controlling switch. On the contrary, when the float device lowers along with the decreasing of liquid level, the magnet element disengages from the metal part to stop the sewage pump. By having float device operated by the magnetic way with few frictional wear, the switch has extended lifespan. Moreover, the float device is convenient in replacement when the float device is malfunctioned. | 05-27-2010 |
| 20100329889 | SWITCH AND FLOAT ASSEMBLY FOR A PUMP - An assembly controls the liquid level in a vessel in which a submersible pump is disposed. The assembly has a switch housing and a float housing, arranged proximate to each other. A switch in the switch housing selectively energizes a motor associated with the pump. When a float disposed in the float housing moves in response to a change in the liquid level of the vessel, the movement is coupled to the switch by a pair of magnets arranged in attractive relationship to each other. One of the magnets is in the switch housing and the other is in the float housing. The magnets interact by providing force fields that acts through a wall that separates the switch housing and the float housing. A lever on which the switch housing magnet is positioned tilts the magnets away from alignment as they approach each other, reducing the increase in attractive force therebetween. | 12-30-2010 |
| 20120251333 | Autonomous Sump Pump System - An autonomous sump (ASP) system is designed to remove water from a sump using a source of power other than commercial electrical power or battery power. The ASP system can be a stand-alone unit or, alternatively, can be used along with a preexisting sump pump system. In some embodiments, the ASP system can provide an alert to a building owner of the ASP system failure. | 10-04-2012 |
| 20140199178 | Site Drainer - A liquid transfer device is disclosed that has a fluid pump enclosed within a rigid, space enclosing housing. The pump has a strainer with strainer openings that provide a fluid connection between the pump and the inside of the housing. The strainer is located at the lower end of the pump and the housing. There are also openings in the housing that provide a fluid connection between the inside of the housing and its outer surface. The maximum size of the openings in the housing is less than the minimum size of the strainer openings so that the strainer does not clog with debris. A discharge manifold provides a fluid connection between the pump and the outside the housing. In this way fluid is drawn in through the housing openings and then the strainer before being pumped out via the discharge manifold. | 07-17-2014 |
| 417041000 | Controlling motive fluid or drive motor | 3 |
| 20080219857 | PROTECTIVE DEVICE FOR A CONTROLLING SYSTEM OF A SEWAGE PUMP - A protective device for a controlling system of a sewage pump has a protective unit to protect a start capacitor and to avoid the start capacitor from burnout when an overload is occurred by actuating power source or when a transient voltage is occurred by malfunction of a controlling circuit after actuating the sewage pump. Therefore, the start capacitor is certainly protected and significantly improved in lifespan. The characteristic of this invention is that the protective device comprises an analogic or digital electronic circuit with a cutter efficiency. | 09-11-2008 |
| 20080298978 | CONTROL AND ALARM SYSTEM FOR SUMP PUMP - A control system for a sump pump driven by an AC motor includes an AC power line having an input adapted for connection to an AC power source and an output adapted for connection to the AC drive motor. A controller is connected to a controllable switch in the AC power line, to control the opening and closing of that switch. Redundant float switches are coupled to the controller and adapted to be mounted in a sump to supply the controller with a signals when the liquid in the sump rises to a selected level. A timer in, or coupled to, the controller alters the control signal to open the controllable switch if the liquid level in the sump remains above the selected level for a preselected time period. | 12-04-2008 |
| 20090129940 | Differential pressure switch - The invention relates to a field adjustable pressure switch that incorporates a manually adjustable differential to set the pressure level for the trip point for the pressure switch used in conjunction with a submersible sump pump system requiring trip levels corresponding to the desired water level in the sump well for operation of the pump motor. | 05-21-2009 |
