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Class 417/26 - With condition responsive control of pump fluid valve


Subclass of Class 417 - Pumps
Definition: Subject matter including valve means for varying the flow
No. of patents: 110
Last issue date: 04/17/2012


1      
NumberTitleIssue Date
8157535Electrical air pump assembly and inflatable product having the same
An inflatable product includes an inflatable body having an exterior wall defining at least one air chamber therein, at least one electrical air pump unit, an electrical switch connected electrically to the electrical air pump unit, and at least one controller. The ...
04/17/2012
7828527Paint circulating system and method
A paint circulating system is suitable for providing paint to applicators in a product finishing facility. The system includes a pump for pumping paint around the system and a back-pressure regulator (BPR), which substantially eliminates pressure fluctuations of pai...
11/09/2010
7611332Device and method for controlling a thick matter pump
A device and a method for controlling a two-cylinder thick matter pump to achieve a reliable operation even of single-circuit two-cylinder thick matter pumps. To this end, the pipe switch includes a position transmitter responding to the pivoting position. At least ...
11/03/2009
7438534Wide range pressure control using turbo pump
The present invention is an apparatus and method for controlling a process flow rate and a pressure in a vacuum process chamber that is evacuated by a turbomolecular pump. A throttle valve between the pump and the process chamber is controlled to regulate the pressu...
10/21/2008
7435059Flow controlled blood pump system
A system for pumping blood to assist or assume the cardiac function of a patient is characterized by a blood pump that exhibits a steep performance curve such that only small changes in pump flow occur for large changes in differential pressure across the pump. The ...
10/14/2008
RE40399Low charge protection vent
A vent is included into a scroll compressor for protecting a refrigerant system in the event of loss of charge. The vent selectively taps an entrapped compression chamber to a housing chamber which surrounds the motor. In the event of a low charge, the gas in the co...
06/24/2008
7363824Flow sensor
A flow sensor for flowing media with a cylindrical housing (2) and with a sensor element located in the housing (2), the housing (2) preferably having an outside thread (3) and being screwable into a union (4) of a pipe (5) ...
04/29/2008
7354190Two-stage mixing system, apparatus, and method
A two-stage mixing system, apparatus, and method produces a solution including a first substance and a second substance in a predetermined ratio by first mixing the first substance with a first liquid to produce a first solution and then mixing the first solution wi...
04/08/2008
7350821Method and system for purging a dispensed fluid within a fluid dispensing system including a filter-free connector apparatus
A connector apparatus is provided which is configured to replace a separation module in a system for dispensing a fluid. When it is desired to purge the system of a dispensed fluid, the connector apparatus, having the same configuration of an inlet and an outlet as ...
04/01/2008
7331773Pump provided with exhaust valve device and hemodynamometer incorporating the same
A diaphragm is provided in a pump case so as to define a pump chamber communicated with an external member having an air chamber. A motor actuates the diaphragm to introduce air into the pump chamber and to supply the introduced air to the air chamber. An exhaust va...
02/19/2008
7317971System for controlling fluid flow based on a valve break point
Embodiments of the present invention provide systems and methods of controlling fluid dispense to ensure clean break off of fluid at the end of a dispense process and to reduce crystallization of fluid in the dispense nozzle. One embodiment of the present invention ...
01/08/2008
7316855Fuel cell assembly for portable electronic device and interface, control, and regulator circuit for fuel cell powered electronic device
A fuel cell assembly including a membrane electrode assembly, an anode plate, a cathode plate, a removable fuel cartridge, and a fuel delivery system. The assembly includes an anode, a cathode, and a polymer electrolyte membrane having a fuel side and an oxygen side...
01/08/2008
7290994Rotary hermetic compressor and refrigeration cycle system
A vane of a first cylinder is compressed and urged by a spring member. A vane of a second cylinder is compressed and urged corresponding to a differential pressure between an intra-casing pressure guided into a vane chamber and a suction pressure or discharge pressu...
11/06/2007
7284968Bidirectional air pump
A bidirectional air pump to selectively inflate or deflate an inflatable object has a housing, a pump assembly and a motor. The housing has a controller cover, a pump cover, and a motor cover. The pump assembly is mounted inside the housing and has a centrifugal pum...
10/23/2007
7265289Electronic module
An electronic module (1) for connection of sensors or actuators to a bus line, with an electronic unit, with several jacks (3) for connection of electrical lines (4), and with one jack (5) and one plug (6) for connection of two bus...
09/04/2007
7258083Integrated cooling system
An integrated cooling system includes a housing and a pumping device disposed within the housing, configured to pressurize a fluid. The cooling system also includes a motor disposed within the housing and operatively coupled to the pumping device. The cooling system...
08/21/2007
7255133Fluid pressure system including free floating bladder
A fluid pressure system (S) includes a flexible diaphragm bladder (172) located inside a pressure tank (164) installed within a fluid system such as well (168). In preferred aspects, the bladder (172) can be inflated by the introduction o...
08/14/2007
7255539Pump pressure limiting engine speed control
A sprinkler system for building includes an internal combustion engine which operates a water pump. The water pump in turn forces water through pipes to sprinkler heads. The engine is at least in part controlled by a throttle control mechanism which includes a sprin...
08/14/2007
7237581Apparatus and method of dispensing photosensitive solution in semiconductor device fabrication equipment
A method of and apparatus for dispensing photosensitive solution substantially reduces the amount of air bubbles in the photosensitive solution during the dispensing operation. The photosensitive solution dispensing apparatus includes at least one supply vessel that...
07/03/2007
7204678Method for controlling the oil recirculation in an oil-injected screw-type compressor and compressor using this method
The invention relates to a method for controlling the oil recirculation in an oil-injected screw-type compressor which, between the oil separator (10) and the compressor element (1), comprises an oil recirculation conduit (17) in which an oil co...
04/17/2007
7174848Controller for monitoring and controlling pulsators in a milking system
A controller for monitoring and controlling an operating pulsator in a milking system is shown. The controller comprises a first sensor operatively connected to a designated pulsator for receiving a pulsating vacuum therefrom. The controller produces a first signal ...
02/13/2007
7128539Method for improved cleaning of a pumping system
Improved method for cleaning a pump, fluid hose, and spray gun is provided by, for example, repeatedly changing the flow rate of the cleaning fluid pumped through the system to generate turbulence or increased turbulence and increased frictional resistance for enhan...
10/31/2006
7125228Pressure washer having oilless high pressure pump
An oilless high pressure pump suitable for use in devices such as pressure washers and the like is described. The pump includes an eccentric assembly suitable for converting rotary motion of a rotating shaft to rectilinear motion. One or more straps couple the eccen...
10/24/2006
7118348Compressed air system and method of control
A compressed air system, wherein a decision to de-energize a compressor motor is made with consideration of the likely need for the operation of the compressor at a future point in time. A rate of pressure decay in an air reservoir may be extrapolated over a predete...
10/10/2006
7109680Inverter device
An object is to provide an inverter device capable of realizing exact protection of the winding of a motor. An inverter device for generating a pseudo alternating current by switching a direct current to drive a motor, comprises a controller that executes vector con...
09/19/2006
7107128System for controlling fluid flow
Embodiments of the present invention provide systems and methods of controlling fluid dispense to ensure clean break off of fluid at the end of a dispense process and to reduce crystallization of fluid in the dispense nozzle. One embodiment of the present invention ...
09/12/2006
7104763Method for discriminating between operating conditions in medical pump
A method is disclosed for determining the operating condition of a medical pump based on data derived from a pressure sensor and a position sensor. The pressure sensor generates pressure data by sensing the force on the pumping element. The position sensor generates...
09/12/2006
7093651Water pressure system with pressure tank installed within well casing of well
A water pressure system includes a pressure tank installed underground within the well casing of a well. The water pressure system includes a submersible pump connected to the inlet of the pressure tank by a drop pipe. The outlet of the pressure tank is connected to...
08/22/2006
7092795Turbine apparatus and governor for turbine
In a turbine apparatus comprising a runner rotatable to be rotationally driven by a water, a gain of a derivative calculation element generating a derivative component of a control signal for controlling a flow rate of the water which derivative component is to be a...
08/15/2006
7072744Turbine apparatus and governor for turbine
In a turbine apparatus comprising a runner rotatable to be rotationally driven by a water, a gain of a derivative calculation element generating a derivative component of a control signal for controlling a flow rate of the water which derivative component is to be a...
07/04/2006
7055648Assembly and method for fan noise reduction from turbofan engines using dynamically adaptive Herschel-Quincke tubes
An assembly useful in reducing aircraft engine noise such as turbofan engine noise (730) comprises: (i) at least one tube “H-Q” having an inlet end (738), an outlet end (740) and a central tube portion therebetween; and (ii) at least one act...
06/06/2006
7052243Pressure regulating valve
A pressure maintenance assembly for a domestic water well system. The assembly comprises a pressure maintenance valve having an inlet side and an outlet side, a pressure tank in fluidic communication with the outlet side, and a calibrated bypass. When the valve is c...
05/30/2006
7029238Pump controller for precision pumping apparatus
A pump controller and pump controlling method for dispensing a precise amount of low viscosity fluid are provided in which the problems of double dispenses and stuttered dispenses are avoided. In particular, the timing of the valves and motors in the pumping apparat...
04/18/2006
7013924Fluid pressure system including free floating bladder
A fluid pressure system (S) includes a flexible diaphragm bladder (172) located inside a pressure tank (164) installed within a fluid system such as well (168). In preferred aspects, the bladder (172) can be inflated by the introduction o...
03/21/2006
6964558Compressor utilizing low volt power tapped from high volt power
Low voltage electrical power is supplied to a diagnostic control device in a sealed compressor. Electrical power is tapped from a high voltage power line and transformed to low voltage power that in turn operates the diagnostic control device. The diagnostic control...
11/15/2005
6939110Control system for I.C. engine driven blower
A system for maintaining constant pressure, such as at a mosquito fogging nozzle, by electronically controlling the speed of an engine that is coupled to a blower. A pressure sensor measures the pressure provided by the blower and provides a pressure signal to the e...
09/06/2005
6695589Control for an electric motor driven pump
An electric motor driven pump has a regulator valve for establishing a system pressure within a predetermined pressure range. The regulator valve has three bias pressures and a spring force imposed thereon. One of the bias pressures assists the spring to ...
02/24/2004
6641368Compressor utilizing low volt power tapped from high volt power
Low voltage electrical power is supplied to a diagnostic control device in a sealed compressor. Electrical power is tapped from a high voltage power line and transformed to low voltage power that in turn operates the diagnostic control device. The diagnos...
11/04/2003
6604908Methods and systems for pulsed delivery of fluids from a pump
A system is disclosed for pumping fluids at desired average flow rates by applying a predetermined force to a pump chamber and pulsing an outlet valve of the pump chamber to deliver a fluid therefrom. In some embodiments, pump chambers are provided within...
08/12/2003
6599093Compressor having speed and intake regulation valve control
A compressor that enables the increase of compression efficiency, the prevention of abnormal temperature rising in the discharge, and the reduction of power loss, includes a compressor body 11, an intake registration valve 12 in the inlet side, and a pres...
07/29/2003
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