| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 417440100 |
By control of electric or magnetic drive motor
| 328 |
| 417012000 |
Having timer or delay means
| 52 |
| 417002000 |
Plural pumps having separate drive motors, supply sources, or delivery destinations
| 49 |
| 417018000 |
Single motor control element responsive to means sensing diverse conditions
| 46 |
| 417032000 |
Responsive to pump or pump fluid temperature
| 44 |
| 417036000 |
Responsive to accumulation of pumped liquid in receiver
| 41 |
| 417042000 |
In response to pump speed
| 39 |
| 417046000 |
By controlling drive motor motive fluid
| 32 |
| 417026000 |
With condition responsive control of pump fluid valve
| 28 |
| 417043000 |
Responsive to change in rate of pump fluid flow
| 25 |
| 417014000 |
Having ambient condition responsive means
| 23 |
| 417015000 |
With control of pump drive transmission
| 23 |
| 417034000 |
By controlling internal combustion drive engine
| 17 |
| 417013000 |
Responsive to pump lubricant, sealant, or coolant condition
| 9 |
| 417016000 |
With plural separate drive motors for single pump unit
| 8 |
| 417017000 |
With plural separate drive motor controlling elements | 5 |
| 20090053072 | Integrated "One Pump" Control of Pumping Equipment - Methods and systems for improving the efficiency of a pumping process by controlling the operation of the pumps involved based on certain parameters characterizing the pump. A pump unit is coupled to a pump controller which is in turn, coupled to a pump modulator. A master controller drives the pump modulator based on a desired output parameter for the system. The pump modulator then drives each pump unit through its corresponding pump controller in a manner for the system to achieve optimal performance. | 02-26-2009 |
| 20090123293 | METHOD AND APPARATUS OF DRIVING MULTIPLE SHAFTS IN A WET/DRY VACUUM AND LIQUID PUMP - The present disclosure provides a method and system to supply pumping capabilities to a wet and dry vacuum cleaner. A single motor can operate a vacuum unit and the pump distinct from the vacuum unit. A port in the vacuum flow path can act as a vacuum tap to prime the pump when necessary. The pump can directly pump the fluids without having to flow first into the drum container of the vacuum cleaner. The system can allow independent operation of the vacuum unit and the pump and at different, more optimal speeds for each, allowing a higher performance on each of the vacuum unit and the pump, since maximum power for the system can be provided to either the operating device while the other one is not operating. Accordingly, the disclosure further provides a system and method for separately engaging and disengaging the vacuum unit and the pump. | 05-14-2009 |
| 20130171007 | METHOD FOR STARTING AN ELECTRIC MOTOR IN A HYDRAULICALLY OPERATED WORKING MACHINE - The invention relates to a method for starting at least one asynchronous electric motor of a large hydraulic excavator having a service weight >100 t and having an electrohydraulic drive, in that the particular electric motor is transferred from an idle position to an operating position by using a three-stage motor starting process, wherein the volumetric flow rate of at least one hydraulic pump operatively connected to the electric motor is set to the delivery rate V=0 during all starting stages of the electric motor and the delivery rate V of the hydraulic pump is controlled to a value >0 only after the last starting stage of the electric motor by activating an actuator. | 07-04-2013 |
| 20130309099 | Compact, Light Weight, Battery Operated, Self-Priming, Positive Displacement Pump - Compact, lightweight, battery operated, self-priming, positive displacement pump for storing in a toolbox or tool belt includes an elongated housing having a longitudinal axis, and an inline configuration including a positive displacement pump assembly to respond to a motor assembly drive torque, self-prime, and pump fluid from an input port to an output port, a motor assembly to respond to signaling and provide the motor assembly drive torque, a pump control interconnect assembly to provide the signaling to control the operation of the motor assembly by current based on run dry mode or over current, by time based on a timer set to run for an amount of time, or voltage based on over/under voltage; and a rechargeable battery housing/assembly to respond to recharging signaling and with a rechargeable DC power supply and power control module for providing some combination of inrush, overcharging, over-discharging, short circuit, over current protection. | 11-21-2013 |
| 20140072449 | FAN CONTROL SYSTEM - A fan control system for a fan on a motherboard includes an I/O controller installed on the motherboard and a control circuit electrically connected to the I/O controller. The fan includes a motor and a rotation speed detecting chip. The I/O controller outputs a rotation speed control signal and a pulse width modulation (PWM) signal. The rotation speed detecting chip detects a rotation speed of the fan, and outputs a rotation speed feedback signal according to the rotation speed of the fan. The I/O controller receives the rotation speed feedback signal, and adjusts a duty cycle of the PWM signal accordingly to change the rotation speed of the fan. The control circuit receives the rotation speed control signal, and outputs a fan driving signal accordingly. The motor receives the fan driving signal, and drives the fan to rotate in a direction according to the fan driving signal. | 03-13-2014 |
| 417010000 |
By controlling starter motor for internal combustion engine | 2 |
| 20130343906 | STARTER SYSTEM FOR AN ENGINE - A pressure washer includes an engine, a water pump driven by the engine, a starter motor coupled to the engine to start the engine, an energy storage device electrically coupled to the starter motor, a spray device including an activation device for starting and stopping a flow of water from the spray device, a pressure sensor, and a flow sensor. The water pump has a low pressure side and a high pressure side. The high pressure side provides pressurized water. The pressure sensor is located at the low pressure side and is configured to indicate a water pressure relative to a threshold pressure. The flow sensor is located at the low pressure side and is configured to indicate a water flow relative to a threshold flow. With the engine off, the starter motor starts the engine when the pressure sensor indicates the water pressure is above the threshold pressure and the flow sensor indicates the water flow is above the threshold flow. | 12-26-2013 |
| 20160090973 | AIR COMPRESSOR - An air compressor includes an internal combustion engine for driving an air compressing part that generates compressed air, which is stored in an air-storage tank. At a point in time when the air pressure inside the air-storage tank has increased to a first set pressure, the supply of fuel to the engine is cut off, thereby stopping the engine and the combustion of fuel. At a point in time when the air pressure inside the air-storage tank has decreased from the first set pressure to a second set pressure, a starter motor is started up to resume the operation of the engine. | 03-31-2016 |
| 417033000 |
Pump stop control means requiring manual reset | 1 |
| 20080317603 | Locking Ring in a Pump of a Beverage System - A beverage system includes a pump that draws a set amount of a flavored concentrate into a mixing chamber for mixing with water to form a beverage. A locking ring attaches an adapter plate to a pump head. When the locking ring is in a locked position, a magnet of the locking ring is detected by a reed switch. If the locking ring rotates from the locked position, the reed switch does not detect the magnet, indicating that the locking ring, and therefore the pump head, is incorrectly or not completely installed. The controller then stops operation of the pump. | 12-25-2008 |
| 417011000 |
By controlling free piston internal combustion engine | 1 |
| 20110052415 | AUTOMATIC COMPRESSOR OVERPRESSURE CONTROL - The present embodiments provide a system having a motor, a compressor having a compression device configured to increase a pressure of a gas, a clutch configured to selectively transfer torque from the motor to the compressor to drive the compression device, and a controller configured to disengage the clutch if the pressure of the gas in the compressor meets or exceeds a first threshold pressure. | 03-03-2011 |
| Entries |
| Document | Title | Date |
|---|
| 20080286117 | Pump with automatic deactivation mechanism - An automatic deactivation mechanism is configured for an air bladder pump having a casing and a motor located therein to pump air into an air bladder from the atmosphere and through an air valve connected through the casing. The automatic deactivation mechanism includes a housing positioned within the casing and has defined therethrough a first aperture in fluid communication with the atmosphere through the casing and a second aperture in fluid communication with the air bladder through the casing. Included within the housing are at least two switches and a diaphragm positioned between the switches. The housing is sealed so that when a threshold pressure is reached therein, at least one switch is triggered by deflection of the diaphragm to automatically deactivate the pump by de-energizing the motor. | 11-20-2008 |
| 20080286118 | CAPACITY MODULATED SCROLL COMPRESSOR SYSTEM AND METHOD - A system and method for modulating capacity of a scroll compressor having a motor includes determining a target capacity of the scroll compressor, operating the motor at a first speed when the target capacity is within a first predetermined capacity range and at a second speed when the target capacity is within a second predetermined capacity range, determining a pulse width modulation cyclic ratio based on the target capacity and the first or second speed, and periodically separating intermeshing scroll members of the compressor according to the pulse width modulation cyclic ratio to modulate the capacity of the scroll compressor. | 11-20-2008 |
| 20080298977 | Machine retarder - A system is provided for controllably absorbing energy associated with a machine. The system may include a power source configured to provide power to a hydraulic pump, wherein the hydraulic pump is configured to provide a flow of fluid to a hydraulic dissipation circuit and to one or more implement system hydraulic cylinders, and wherein the hydraulic dissipation circuit is configured to generate a load associated with the hydraulic pump. The system may also include at least one valve configured to provide the flow of fluid to the hydraulic dissipation circuit in response to one or more control signals and a controller configured to receive an input signal from an operator actuated device, and generate the one or more control signals based on the input signal. | 12-04-2008 |
| 20090060749 | Molded Plug For A Compressor - A plug assembly for a compressor having a shell, a terminal body on the shell, and a conductor pin extending through the terminal body, wherein a connector body of the plug assembly includes a plurality of electrical receptacles for electrical communication with the conductor pin at least partially disposed within a fence disposed around the terminal body. The plug assembly may be formed of a thermoplastic or thermoset material having a tensile modulus between 9500 MPa and 18000 MPa, and/or about 30 percent glass fibers. At least one electrical receptacle may be housed by an inner core of the plug assembly for electrical communication with the conductor pin. An annular sealing member may be supported by an outer body of the plug assembly for sealingly engaging the fence. | 03-05-2009 |
| 20090129935 | PUMP SUCTION PRESSURE LIMITING SPEED CONTROL AND RELATED PUMP DRIVER AND SPRINKLER SYSTEM - A building sprinkler system includes a pump that feeds a plurality of sprinkler heads. A driver is operatively connected to the pump for driving the pump. A speed control is responsive to suction pressure at a suction side of the pump. The speed control is configured to reduce driver speed when the suction pressure falls below a set threshold pressure value to maintain the suction pressure above the set threshold pressure value. | 05-21-2009 |
| 20090232662 | METHOD FOR ESTIMATING PUMP EFFICIENCY - The present invention provides highly accurate methods for directly calculating pump fillage which avoid the need and expense of a pump dynamometer card and subsequent calculations. | 09-17-2009 |
| 20090252616 | Variable Rate Pumping System - A pumping system comprising a motor, wherein the motor has an operating speed, a pump coupled to the motor, wherein the pump has a volumetric displacement, a fluid end coupled to the pump, wherein the fluid end is operable to draw fluid from an input and provide fluid to an output, and a control system operable to regulate the motor and the pump in order to provide fluid to the output at a selected pressure and flow rate within a continuous range of pressures and flow rates between the peak horsepower output and peak torque output of the motor. | 10-08-2009 |
| 20090317259 | System and Method for Explosion-Proof Pump - A System and Method for Explosion-Proof Pump is provided comprising a component being mated to an adjacent component by sealing means. An embodiment provides that the component is a switch housing having a cavity formed therein. A switch is secured in the cavity and the adjacent component is selected from the group access plate and motor housing. | 12-24-2009 |
| 20100008793 | SAFETY SWITCH ON A PERISTALTIC PUMP - A peristaltic pump is provided that is configured to facilitate safe maintenance of the pump. The pump can comprise a pump body having a pump head and a head cover and a safety switch mechanism. The safety switch mechanism can comprise one or more sensors that allow the pump to detect whether the head cover is in an open or closed position. When the pump is powered-on, the pump can be configured to enter a maintenance mode when the safety switch detects that the head cover is in the open position. | 01-14-2010 |
| 20100061865 | SYSTEM AND/OR METHOD FOR MONITORING AND/OR CONTROLLING THE RELATIVE INTERNAL AIR PRESSURE OF A FACILITY - A system is provided for maintaining a balanced interior air pressure in a building ( | 03-11-2010 |
| 20100068070 | FLOW CONTROL FOR FLUID HANDLING SYSTEM - A method of correcting fluid flow offset for an uncharacterized fluid handling system including a motor. The method includes running the motor at a reference fluid flow demand using generic coefficients, and changing fluid flow demand from the reference fluid flow demand until the motor signals a power limit condition. When the motor signals the power limit condition, the fluid flow demand is noted. The operational fluid flow demands are scaled by a ratio of the noted fluid flow demand to the reference fluid flow demand. | 03-18-2010 |
| 20100080712 | System and Method of Disabling an HVAC Compressor Based on a High Pressure Cut Out - A system and method is provided for monitoring a system pressure to infer whether a high pressure cut out (HPCO) switch has opened disabling a heating, ventilating, and air conditioning (HVAC) compressor. A system and method are also provided for determining whether to disable the HVAC compressor based on a status of a low pressure cut out (LPCO) switch, an ambient temperature, and system mode state. The systems and methods may be used interchangeably with the appropriate adjustments to decision limits, such as where the LPCO may be monitored to infer status and the HPCO status may be directly used with temperature and system mode state. | 04-01-2010 |
| 20100080713 | System and Method of Disabling an HVAC Compressor Based on a Low Pressure Cut Out - A system and method is provided for monitoring a system pressure to infer whether a high pressure cut out (HPCO) switch has opened disabling a heating, ventilating, and air conditioning (HVAC) compressor. A system and method are also provided for determining whether to disable the heating, ventilating, and air conditioning (HVAC) compressor based on a status of a low pressure cut out (LPCO) switch, an ambient temperature, and system mode state. The systems and methods may be used interchangeably with the appropriate adjustments to decision limits, such as where the LPCO may be monitored to infer status and the HPCO status may be directly used with temperature and system mode state. | 04-01-2010 |
| 20100086412 | BLOWER | 04-08-2010 |
| 20100124509 | RECIPROCATING GAS COMPRESSOR WITH SPEED MODULATION OF COMPRESSOR DRIVER FOR PULSATION AVOIDANCE - A method for reducing pulsation in a gas compressor system. The compressor driver (engine or motor) is operated at a modulated engine speed. The average of the modulated speed is selected to achieve a desired pipeline flow. The modulation characteristics are determined to optimally reduce the pulsation response of the compressor system. | 05-20-2010 |
| 20100143155 | Piston Pump Having A Force Sensor And A Method For Controlling Said Pump - The present invention relates to a piston pump for generating a delivery flow, which is substantially free of pulsation, in particular to a dual piston pump, and to a method for controlling such a piston pump delivering a pumped medium from a low-pressure area into a high-pressure area, wherein measuring sensors detecting mechanical forces or moments transmitted by the structure of the pump or its associated drive unit are used instead of the pressure or flow sensors usually employed for this purpose. | 06-10-2010 |
| 20100196168 | PUMP END OF STROKE SENSOR - A prime mover includes a shaft assembly that is supported for reciprocal movement between first and second ends of a stroke, and that includes first and second portions having a first material, and a third portion in between the first and second portions, having a second material, different from the first material. A single inductive proximity sensor makes a first indication when proximate the first material, and makes a second indication, when proximate the second material. A portion of the sensor is proximate the first portion when the shaft is at the first end of the stroke, the same portion of the same sensor is proximate the second portion when the shaft is at the second end of the stroke, and the same portion of the same sensor is proximate the third portion the entire time the shaft is in between the first and second ends of the stroke. | 08-05-2010 |
| 20100215509 | SYSTEMS AND METHODS FOR PROGRAMMING OF A COOLING FAN VIA A SERIAL PORT COMMUNICATION MODE - Embodiments of the present disclosure provide a method that comprises, based upon receipt of a mode command, changing an operating mode of a fan motor controller of a fan to a serial port communication protocol, programming a memory of the fan motor controller with an operating parameter of the fan, and based upon receipt of a serial port command, changing the operating mode of the fan motor controller from the serial port communication protocol to another protocol. | 08-26-2010 |
| 20100226792 | FAN CONTROL SYSTEM AND AIR CONDITIONER THAT INCLUDES THE SAME - A fan control system includes a first fan, a second fan that is adjacent to the first fan, a first motor that is configured to rotate the first fan, a second motor that is configured to rotate the second fan, and a control unit. The control unit is configured to control the rotational speeds of the first motor and the second motor, and to decrease the rotational speeds of both the first motor and the second motor when the rotational speed of the first motor must be decreased. | 09-09-2010 |
| 20100239433 | CONTINUOUS SUCKER ROD AND METHOD OF USING SAME - A continuous sucker rod preferably comprising fiberglass or composite material for use in an well is described herein. The continuous sucker rod may be connected at one end to a pump drive, via a polished rod, and at a second end to a downhole pump, via sinker bars or other weights. The continuous sucker rod preferably has at least two end fittings, one at each end of the continuous sucker rod. The end fittings, each having two ends and each being attached, at one end, to a respective end of the continuous sucker rod. The end fittings are preferably configured to enable connection to the polished rod and sinker bars respectively. The end fittings are connected to the continuous sucker rod so as to form wedges which enhance the connectability of the end fitting to the rod, and further, the wedge or wedges approach the rod asymptotically so as to avoid any abrupt discontinuities in the wedge or wedges thus substantially eliminating stress concentration areas and potential failure areas in the rod. | 09-23-2010 |
| 20110033313 | Air Flow Control Apparatus - An apparatus includes a valve housing having an inlet port, a first chamber with a first outlet port, and a second chamber with a second outlet port. A first valve opens between the inlet port and the first chamber under a first level of pneumatic pressure at the inlet port. A second valve opens between the first chamber and the second chamber under a second, greater level of pneumatic pressure in the first chamber. A third valve opens between the second chamber and the first chamber under a third level of pneumatic pressure in the second chamber, with the third level being less than the first level. | 02-10-2011 |
| 20110052414 | Apparatus for Controlling a Pump - Disclosed is a controller for controlling a pump. The controller includes a sensor unit and a buoy unit. The sensor includes a base, a cylinder extended from a lower side of the base, a micro-switch provided on the base, a ferromagnetic tag connected to the micro-switch and a switch provided on the base. The switch is connected to the micro-switch on one hand and to the pump on the other hand. The buoy unit includes a buoy, a rod inserted through the buoy and a magnet connected to the rod. The rod is movably inserted in the sensor unit through the cylinder so that the magnet attracts the ferromagnetic tag to actuate the micro-switch when the level of sewage reaches an upper limit and that the magnet releases the ferromagnetic tag when the level of sewage reaches a lower limit. | 03-03-2011 |
| 20110091329 | Pumping System with Two Way Communication - A pumping system for moving water of a swimming pool includes a water pump, a variable speed motor, and an arrangement for controlling the variable speed motor. The pumping system further includes an auxiliary device operably connected to the arrangement for controlling, and an arrangement for providing two-way communication between the arrangement for controlling and the auxiliary device. The arrangement for controlling is capable of receiving a parameter from the auxiliary device through the arrangement for providing two-way communication. In one example, the arrangement for controlling is capable of independently controlling the variable speed motor without receipt of a parameter from the auxiliary device. In addition or alternatively, the arrangement for controlling is operable to selectively alter operation of the motor based upon the parameter. In addition or alternatively, the arrangement for controlling is configured to optimize a power consumption of the variable speed motor over time based upon the parameters received. A method for controlling the pumping system is also provided. | 04-21-2011 |
| 20110129354 | Vibration Protection In A Variable Speed Compressor - Vibration protection in a compressor system with a variable speed compressor may include operating a variable speed compressor of a compressor system at a first frequency, measuring a vibration of the compressor system at the first frequency, determining whether the vibration exceeds a maximum vibration value, and operating the variable speed compressor at an average frequency equivalent to the first frequency, when the vibration exceeds the maximum vibration value, by identifying an allowed upper frequency and an allowed lower frequency, calculating an upper operating time and a lower operating time, and operating the variable speed compressor at the allowed upper frequency for the upper operating time and the allowed lower frequency for the lower operating time. | 06-02-2011 |
| 20110176931 | EFFICIENT VACUUM FOR A VEHICLE - An engine with an efficient selectively operable vacuum source is disclosed. In one example, an electric vacuum pump with oil wetted seals provides vacuum to a vehicle. The approach may provide for improved efficiency when generating vacuum. | 07-21-2011 |
| 20110200450 | APPARATUS AND METHOD FOR TUNING PUMP SPEED - An apparatus for tuning pump speed at an optimal or desired speed using an automated method is disclosed. The apparatus includes a vacuum pump connected to a chamber for evacuating gas from the chamber. A sensor measures one or more characteristics, such as pressure, of the gas in the chamber. The measured characteristic is compared to a predetermined value. The speed of vacuum pump is adjusted based on the comparison until it falls in a desired range. | 08-18-2011 |
| 20110206537 | HYBRID ELECTRO-HYDRAULIC POWER DEVICE - A hydraulic power device for effecting operation of at least one load, the hydraulic power device including a motor having a predetermined motor speed rating and motor power rating, at least one pump operably coupled to the motor, the pump being configured to provide, to the at least one load, a predetermined hydraulic fluid flow at the predetermined motor speed rating, and a variable frequency drive connected to the motor, the variable frequency drive being configured to effect operation of the motor at a speed above the predetermined motor speed rating such that the at least one pump operates to provide an excess hydraulic fluid flow during operation of the motor substantially above the predetermined motor speed rating where the excess fluid flow is greater than the predetermined hydraulic fluid flow. | 08-25-2011 |
| 20110206538 | AIR COMPRESSOR - When an air pressure in a tank part ( | 08-25-2011 |
| 20110217182 | AIR MOVEMENT SYSTEM - The invention relates to an air movement system comprising a centrifugal fan unit, wherein the centrifugal fan unit comprises a centrifugal fan coupled to a drive unit, a control unit operationally coupled to said drive unit, an inlet piece forming a inlet duct to the centrifugal fan, which inlet duct has an end facing the centrifugal fan, and an outlet duct, wherein the inlet piece is provided with a first pressure tap and a second pressure tap, the second pressure tap being positioned at distance from the end of the inlet duct facing the centrifugal fan, and the control unit is configured to measure a pressure difference between the first and second pressure tap and to control the centrifugal fan in dependence of the measured pressure difference, characterized in that the first pressure tap is positioned at the end of the inlet duct facing the fan, and in that said control unit is adapted to maintain a set airflow rate out of said outlet duct based on said measured pressure difference via controlling of the rotational speed of said centrifugal fan. | 09-08-2011 |
| 20110255992 | Pump controller - The present invention provides a technique using current sensing to control the pressure at constant level without the direct sensing of the pressure. This technique will help to reduce dependency solely on switch or sensor and their non linearity and other associated problems such as the non-repetitive behavior, being affected by EMI etc. The technique includes using a pump controller featuring one or more modules configured to respond to one or more input signals containing information about current provided from a pump; and configured to provide one or more output signals containing information to control the pump to operate at a substantially constant pressure without the direct sensing of pump pressure. The one or more modules control the operation of the pump based at least partly on a table of characteristics related to voltage and current that is calibrated for each pump. | 10-20-2011 |
| 20110300001 | METHOD AND SYSTEM FOR SHAPE-MEMORY ALLOY WIRE CONTROL - A method for controlling a device using a shape-memory alloy wire is disclosed. The method includes determining an ontime for the shape-memory alloy wire based on a target volume to be pumped by a pump plunger, determining the temperature of the shape-memory alloy wire and adjusting the ontime based on the temperature of the shape-memory alloy wire. | 12-08-2011 |
| 20110305584 | ADAPTIVE ACCURACY FOR ENTERAL FEEDING PUMP - A pumping apparatus for use with a pump set to deliver fluid through the pump set includes a housing capable of receiving at least a portion of the pump set. A pumping device is moveably mounted in the housing and includes a motor that turns independently from movement of the pumping device when activated. The pumping device contacting the pump set when the pump set is received by the housing so the pumping device acts on the pump set to produce fluid flow in the pump set upon activation of the motor. | 12-15-2011 |
| 20110311370 | SUMP PUMP SYSTEM WITH REMOTE CONTROL AND MONITORING - The present invention in several embodiments is a sump pump system with broad capabilities for remote and automatic operation. The sump pump system of the present invention is preferably connected to the internet and possesses means for communicating over the internet. The sump pump system could comprise redundant, auxiliary, and emergency devices to guard against failure or miss operation of the components of the system. Additionally, the system could comprise failsafe routines to combat the risk of flooding. | 12-22-2011 |
| 20110311371 | METHODS AND APPARATUS FOR COUPLING CAPACITORS - A method for supplying a plurality of capacitance values to a plurality of heating, ventilation, air-conditioning, and refrigeration (HVAC/R) components is provided. The method includes configuring a first set of terminals of a connection device to couple a first capacitor to the connection device and configuring the connection device to couple the first capacitor to at least one of the plurality of HVAC/R components. The method further includes configuring a second set of terminals of the connection device to couple a second capacitor to the connection device and configuring the connection device to selectively couple the second capacitor to at least one of the plurality of HVAC/R components. | 12-22-2011 |
| 20110318192 | DEVICE FOR DELIVERING THICK MATTER - A device for conveying a mixture of substances includes a delivery cylinder having perforations and is configured to separate, through the perforations, mixture components from the mixture of substances. A material feed space is connected to an inlet side of the delivery cylinder and delivery line is connected to the outlet side. A delivery piston is reciprocatable through the material feed space and the delivery cylinder. A closure member is disposed at the outlet side of the delivery cylinder or in the delivery line and is movable between open and closed positions. A control unit is operable to move the delivery piston and a drive mechanism operable to move the closure member. The control unit is configured to respond to displacement signals of the delivery piston so as to cause a closing movement of the closure member and is configured to respond to output signals of an upstream pressure sensor so as to cause an opening movement of the closure member. | 12-29-2011 |
| 20120014811 | FAN APPARATUS - A fan apparatus comprises a fan module and an actuator. The actuator coupled to the fan module comprising a pair of guide rails and an actuating element. In one embodiment, the two ends of each actuating element slidably coupled with the corresponding pair of the guide rail respectively. When the actuating element is driven to slides on the guide rails, a reaction force acts on the fan module for lifting the fan module from an inserted position. In another embodiment, one end of the actuating element is coupled to one guide rail, while the other end of the actuating element is rotatably coupled to a protrusion part slidably coupled in the other guide rail. When the actuating element is driven to slide on one guide rail, a reacting force acts on the protrusion part for inserting the fan module into an inserted position or lifting the fan module therefrom. | 01-19-2012 |
| 20120034103 | METHOD AND APPARATUS FOR MONITORING OF ESP - A method monitors an ESP with a pump for pumping oil, gas, water or other fluid media, which pump is driven by an electrical motor. Acoustical phenomena of the motor and/or the pump are used as a state variable for pumping the media. The acoustic phenomena are measured as electrical signals and the electrical signals are discriminated in respect to the pumped media. In the corresponding apparatus for monitoring of ESP, with pump section(s) for pumping a mixture of oil, gas and water, which is driven by a motor section(s), whereby at least one acoustic sensor is placed near the ESP. | 02-09-2012 |
| 20120063917 | ROUGHING PUMP METHOD FOR A POSITIVE DISPLACEMENT PUMP - In order to provide a simple and energy-efficient rough pumping method for a displacement pump ( | 03-15-2012 |
| 20120063918 | APPARATUS AND METHOD FOR DETERMINING CLEARANCE OF MECHANICAL BACK-UP BEARINGS OF TURBOMACHINERY UTILIZING ELECTROMAGNETIC BEARINGS - Apparatus and method for determining the clearance and wear of mechanical back-up bearings of turbomachinery utilizing electromagnetic bearings. In order to reduce the prospects of catastrophic failure during a shut-down or loss of electrical power, a rotating apparatus utilizes the electromagnetic bearings to manipulate the shaft to measure the clearance of the mechanical back-up bearings. When power is restored, a programmable controller provides power to the electromagnetic bearings to automatically move the shaft in accordance with a predetermined sequence to contact the mechanical back-up bearings to determine the clearance of the mechanical back-up bearings. These values are stored in the controller memory. The measured clearance is compared to prior clearance measurements of the mechanical back-up bearings to determine the wear of the back-up bearings. The actual wear is compared to the allowable wear for the bearings. If actual wear exceeds a predetermined value, a warning is generated. If the actual wear equals or exceeds the allowable wear, the controller automatically locks the turbomachinery from further operation until repair or replacement is accomplished. Otherwise, the controller centers the shaft to permit normal operation of the turbomachinery. | 03-15-2012 |
| 20120070311 | System and Method for Pressure Compensation in a Pump - Systems and methods for maintaining substantially a baseline pressure in a chamber of a pumping apparatus are disclosed. Embodiments of the present invention may serve to control a motor to compensate or account for a pressure drift which may occur in a chamber of the pumping apparatus. More specifically, a dispense motor may be controlled to substantially maintain a baseline pressure in the dispense chamber before a dispense based on a pressure sensed in the dispense chamber. In one embodiment, before a dispense is initiated a control loop may be utilized such that it is repeatedly determined if the pressure in the dispense chamber is above a desired pressure and, if so, the movement of the pumping means regulated to maintain substantially the desired pressure in the dispense chamber until a dispense of fluid is initiated. | 03-22-2012 |
| 20120107137 | PORTABLE STEEL-REINFORCED HDPE PUMP STATION - The portable steel-reinforced HDPE pump station includes a vertically upright, cylindrical wet well fabricated from steel-reinforced plastic. Pumps are disposed in the wet well. A pipe connected to the pumps extends to the outside of the wet well to allow outflow of water to external systems. An access hatch covers the upper portion of the wet well and is arranged above grade. The remainder of the wet well is disposed in the ground, below grade. Vertically disposed sliding rails are attached inside the wet well, and extend upward from a working area of the well to the top of the well near the access hatch. The pumps are slidably attached to the rails to facilitate sliding installation and removal of the pumps by way of the access hatch. A water-receiving inlet pipe extends into the wet well, the inlet pipe allowing entry of water inside the wet well. | 05-03-2012 |
| 20120128505 | Method and System for Pump Priming - The disclosure describes systems and methods relating generally to filtration. Even more particularly, embodiments described herein relate to optimizing operating routines of a pump based on filter. Embodiments of priming routines described herein can perform a back pressure step to pressurize the filter from downstream and a back flush step to flush the filter from downstream. | 05-24-2012 |
| 20120148415 | PUMP ROTOR - The present invention relates to a pump rotor for a peristaltic hose pump, in particular a medical peristaltic hose pump, with at least one actuating device, by means of which the pump rotor can be actuated hydraulically and/or pneumatically. Furthermore the present invention in particular relates to a medical peristaltic hose pump and to a method for actuating a pump rotor of a peristaltic hose pump. | 06-14-2012 |
| 20120189462 | Pump Assisted Refilling System for LPG Fuel Tanks - A pump assisted refilling system for LPG and other fuels wherein the fuel storage pressure is at, or close to, the vapor pressure of the fuel. A fuel pump is selectively activated to assist fuel delivery from the refilling fitting to the tank interior responsive to a determined fuel pressure condition of the fuel so that rapid refilling is always assured. | 07-26-2012 |
| 20120189463 | HYDRAULIC PUMP OPERATING DEVICE AND METHOD FOR USE IN HYDRAULIC SYSTEM - The rotational frequency of a variable speed motor is set to a normal rotational frequency setting value (N | 07-26-2012 |
| 20120195769 | SYSTEM AND METHOD FOR COMMUNICATION WITH AN INFUSION DEVICE - It may desirable to monitor or control a pump remotely. For example, the pump may be positioned near the patient, with remote control or monitoring of the pump occurring in a control room. In one exemplary embodiment, the pump is used in an MRI environment. In another exemplary embodiment, the pump is used in a hyperbaric chamber. The pump may monitor one or more physiological parameters and transmit them to the remote. The pump may also transmit information relating to the pump's operation. The pump may send the device and/or physiological data using one or more packets. The packets may consist of low priority sequential packets and high-priority asynchronous packets. The high-priority packets may enable the real-time monitoring of a patient's heart beat or other physiological parameter. | 08-02-2012 |
| 20120207617 | USE OF MOTOR PROTECTION SYSTEM TO PROTECT PROCESS OPERATION - Disclosed herein is an approach that uses a motor protection system to protect a process operation. In one aspect, a motor protection system in conjunction with a controller monitor the performance of redundant motor-driven prime movers having a lead motor-driven prime mover and a lag motor-driven prime mover. In one embodiment, the controller controls operation of the redundant motor-driven prime movers as a function of motor protection measurements generated from the motor protection system. In particular, the controller uses the motor protection measurements to determine if the lead motor-driven prime mover is in distress. The controller activates operation of the lag motor-driven prime mover in response to determining that the lead motor-driven prime mover is in distress. In one embodiment, the controller activates operation of the lag motor-driven prime mover prior to tripping the distressed lead motor-driven prime mover. | 08-16-2012 |
| 20120213643 | VEHICLE AUXILIARY PUMP CONTROL - A vehicle includes a main pump and an auxiliary pump, each configured to provide fluid to a hydraulic circuit. A motor is configured to drive the auxiliary pump. A controller is configured to determine a temperature of the motor, compare the temperature of the motor to a first predetermined operating threshold, and disable the auxiliary pump and enable the main pump if the temperature of the motor is above the first predetermined operating threshold. A method of controlling fluid flow in the vehicle includes determining a temperature of the motor, comparing the temperature to the first predetermined operating threshold, and disabling the auxiliary pump and enabling the main pump if the temperature of the motor is above the first predetermined operating threshold. | 08-23-2012 |
| 20120213644 | ELECTRONICALLY CONTROLLED LIQUID DISPENSING SYSTEM WITH MODULAR TUBING AND POWER DESIGN - Apparatus is provided featuring a switch-mode power supply (SMPS) having a power circuit component in combination with a SMPS controller. The power circuit component may be configured to provide power to a pump that provides fluid from a container to some other device, including an appliance. The SMPS controller may be configured to receive signaling containing information about at least one control parameter selected from a group including a pressure at an outlet of the pump, a fluid level in the container and the temperature of a motor of the pump, and also may be configured to shut off the power provided to the pump based at least partly on the signaling received so that the power circuit component substantially does not draw power and heat up when the pump is shut off. | 08-23-2012 |
| 20120224976 | AIR VOLUME CONTROL DEVICE AND AIR VOLUME CONTROL METHOD - An air volume control device determines whether or not a cooling capacity of an electronic device fulfills a predetermined cooling capacity. Then, if it is determined that the cooling capacity of the electronic device is failing to fulfill the predetermined cooling capacity, the air volume control device decreases the number of revolutions of a fan for cooling the electronic device. For example, the air volume control device compares a temperature of a heating element provided in the electronic device before a change in the number of revolutions of the fan with that after the change in the number of revolutions of the fan. If the temperature of the heating element is increased when the number of revolutions of the fan is increased, the air volume control device determines that the cooling capacity of the electronic device is failing to fulfill the predetermined cooling capacity. | 09-06-2012 |
| 20120237360 | Electric Vacuum Pump Backup Control System and Method - An electric vacuum pump backup control system includes a brake on/off switch, a primary electric vacuum pump control interfacing with the brake on/off switch, a secondary electric vacuum pump control interfacing with the brake on/off switch and the primary electric vacuum pump control and an electric vacuum pump interfacing with the primary electric vacuum pump control. | 09-20-2012 |
| 20120263604 | HYDRAULIC PUMP CONTROL APPARATUS AND METHOD OF CONSTRUCTION MACHINE - Disclosed are a hydraulic pump control apparatus and a hydraulic pump control method of a construction machine. The hydraulic pump control apparatus includes a pump control unit for controlling a discharge pressure of a hydraulic pump driven by an engine. The pump control unit includes: a pressure setting value calculating unit configured to calculate a pressure setting value based on an engine output torque estimating value or an engine RPM; and a breakdown treating unit configured to select one of the pressure setting value and a pressure command value according to a breakdown of the swash plate angle sensor to output the selected value. Since the pump is controlled according to a pressure setting value obtained by calculating the pressure setting value based on the engine output torque estimating value, the absorption torque value of the pump does not exceed the maximum torque value of the engine even when the swash plate angle sensor breaks down. Accordingly, a phenomenon of stopping the engine can be prevented even if the swash plate angle sensor breaks down during a high-load operation of the engine. | 10-18-2012 |
| 20120294730 | SYSTEM AND METHOD FOR PROVIDING COMPRESSED AIR FROM AN ENGINE - A system for directing compressed air from an internal combustion engine that uses a piston cylinder of the internal combustion engine. The piston cylinder compresses the air and sends the air out of the piston cylinder through a port to a storage tank. A valve is located between the piston cylinder and the storage tank to control the flow from the piston cylinder to the storage tank. The stored air may be directed to and used in different components/systems within a vehicle, including the secondary air system. | 11-22-2012 |
| 20120301320 | PUMP SYSTEM - A submersible pump system includes a submersible pump assembly having one or more stages of impellers and a submersible motor assembly that drives the pump assembly. The submersible pump assembly includes a motor housing, a motor within the motor housing for driving the pump assembly and a control module mounted to the motor housing for operating the motor. The control module is electrically connected to a power line and comprises a controller and a variable frequency drive driven by the controller. The controller operates the variable frequency drive to drive the motor to maintain a constant pressure output condition from the pump assembly. | 11-29-2012 |
| 20120301321 | FAN CONTROL CIRCUIT - A fan control circuit of a computer includes a fan interface connected to a connector of a fan, a fan controller and an electronic switch chip. The fan controller outputs a pulse width modulation (PWM) signal to the fan interface to control the operation of the fan, and includes a general purpose input/output (GPIO) interface to output a voltage control signal to the electronic switch chip to switch the electronic switch chip on or off. The voltage control signal is at a low level at the start up moment of the computer, and thus does not turn on the fan via the electronic switch chip. After a preset delay period, the voltage control signal becomes a high-level signal under the control of the fan controller so that the fan interface receives the PWM signal. | 11-29-2012 |
| 20120308400 | FAN CONTROL CIRCUIT - A fan control circuit of a computer includes a fan interface connected to a connector of a fan, a fan controller, a NOT gate, and an electronic switch. The fan controller outputs a PWM signal to the fan interface to control the operation of the fan, and includes a GPIO interface to output a voltage control signal to the NOT gate to switch the electronic switch on or off. A signal output of the electronic switch is connected to the fan interface. The voltage control signal is high level at the start up moment of the computer, and thus does not turn on the fan via the electronic switch. After a preset delay period, the voltage control signal is turned low by the fan controller so that the fan interface receives the PWM signal. | 12-06-2012 |
| 20120308401 | PUMP UNIT - A pump unit includes a drive motor ( | 12-06-2012 |
| 20120321484 | Pump controller - The present invention provides a technique using current sensing to control the pressure at constant level without the direct sensing of the pressure. This technique will help to reduce dependency solely on switch or sensor and their non linearity and other associated problems such as the non-repetitive behavior, being affected by EMI etc. The technique includes using a pump controller featuring one or more modules configured to respond to one or more input signals containing information about current provided from a pump; and configured to provide one or more output signals containing information to control the pump to operate at a substantially constant pressure without the direct sensing of pump pressure. The one or more modules control the operation of the pump based at least partly on a table of characteristics related to voltage and current that is calibrated for each pump. | 12-20-2012 |
| 20120328452 | SYSTEM AND METHOD FOR LUBRICATING A FUEL PUMP - Systems and methods for diagnosing and operating an engine with a fuel pump that supplies fuel to a fuel injector that may be temporarily deactivated are described. In one example, injection of fuel may commence in response to a level of lubrication of a fuel pump. The system and methods may extend fuel pump life in systems where fuel injection may be deactivated. | 12-27-2012 |
| 20130045112 | ROLLER POSITIONING SYSTEM - A tube-positioning system for loading tubing into a peristaltic pump includes a shell configured to slidably fit onto, and be releasably secured relative to, an exterior housing of a peristaltic pump. A pair of guides protrude from an upper portion of opposite side walls of the shell with each guide configured to releasably mount a first tube segment to extend between the guides. | 02-21-2013 |
| 20130071256 | PUMP WITH WEAR SLEEVE - A pump is disclosed, comprising: a pump block defining a cylinder in which a piston is mounted for reciprocation and positive displacement of fluids from an intake port of the pump block to a discharge port of the pump block; an intake valve located in the intake port of the pump block and a discharge valve located in the discharge port of the pump block; the intake valve having a valve plug that has a closed position in which the valve plug is seated on a valve seat in the intake port; a wear sleeve lining at least a portion of the intake port upstream of the valve seat; a pressure sensor upstream of the intake valve for detecting a pressure condition indicative of failure of the intake valve to provide a seal when the intake valve is in the closed position; and a controller responsive to the pressure sensor to send a signal to stop operation of the pump upon detection of the pressure condition. | 03-21-2013 |
| 20130089435 | METHOD FOR OPERATING AT LEAST ONE PUMP FACILITY - A method for operating at least one pump facility is proposed. The pump facility is assigned to a cooling facility arranged externally relative to a magnetic resonance facility for examination of an examination object. At least one operating parameter of the pump facility influencing the power input of the pump facility is set as a function of at least one item of control information relating to the examination object to be examined with the magnetic resonance facility. | 04-11-2013 |
| 20130108472 | Fluid Load Line Calculation and Concavity Test for Downhole Pump Card | 05-02-2013 |
| 20130121843 | COMPRESSOR DIGITAL CONTROL FAILURE SHUTDOWN ALGORITHM - A method of controlling the loading and unloading of a compressor includes selectively loading and unloading a compressor by engaging and disengaging, respectively, compressor members with the controller in response to system load data, monitoring at least one of the discharge pressure and the suction pressure at a predetermined time interval for a continuous time period, storing values based on the at least one of the discharge pressure and the suction pressure during the continuous time period, and determining a predetermined value indicative of compressor operation in which the compressor members are engaged. The method further includes comparing at least one of the stored values with the predetermined value and providing a signal to cease operation of the compressor when the comparison fails to indicate compressor operation in which the compressor members are engaged. | 05-16-2013 |
| 20130216396 | MODULAR FAN HOUSING WITH MULTIPLE MODULAR UNITS HAVING SOUND ATTENUATION FOR A FAN ARRAY FOR AN AIR-HANDLING SYSTEM - A modular fan housing configured to hold an array of motors and fans is provided. The modular fan housing is configured for use in an air-handling system that delivers air to a ventilation system for at least a portion of a building. The fan housing comprises a plurality of modular units configured to be stacked adjacent to one another in at least one row or column to form an array. The modular units each include an interior surface and have a front end and a back end that define a chamber. The chambers are configured to receive the motors and fans. Sound attenuation layers extend along at least a portion of the interior surface of the corresponding chambers. The sound attenuation layers are positioned between at least some of the adjacent chambers. | 08-22-2013 |
| 20130243607 | CONTROL METHOD FOR A RESONANT LINEAR COMPRESSOR AND AN ELECTRONIC CONTROL SYSTEM FOR A RESONANT LINEAR COMPRESSOR APPLIED TO A COOLING SYSTEM - A control method and system for a resonant linear compressor applied for controlling the capacity of a cooling system. The method includes: a) reading a reference operation power (P | 09-19-2013 |
| 20130272897 | INTELLIGENT ONLINE CLOSED-LOOP BALANCE ADJUSTING SYSTEM FOR PUMPING UNIT - The invention relates to an intelligent online closed-loop balance adjusting system for a pumping unit. The system comprises a connecting rod, balance weights, a transmission device, a balance weight displacement adjusting motor and a control device used for driving the motor to adjust and control the weight displacement. The transmission device and the balance weight displacement adjusting motor are arranged above a walking beam. The balance weight displacement adjusting motor is connected with one end of the connecting rod through the transmission device, and the other end of the connecting rod is connected with balance weights. One end of the walking beam away from the horse-head is connected with the middle part of the connecting rod. The invention can realize automatic weight adjustment without shutting the machine down, and the balance weights can be adjusted with the precision of ±10%. | 10-17-2013 |
| 20130280095 | METHOD AND SYSTEM FOR RECIPROCATING COMPRESSOR STARTING - Systems and methods of the invention may overcome a higher than normal starting torque for in a reciprocating, electric motor driven air compressor for a vehicle. A detection component can be configured to detect a stall condition for a reciprocating compressor based on a force from compressed air being compressed into a reservoir of the reciprocating compressor. Based upon the detected stall condition, a controller can reverse direction or increase torque to alleviate the stall condition. In the reverse direction mode, the controller component can change a direction of a piston rotation. In the torque increase mode, the controller increases a number of poles for the motor, a line voltage, or a volt/hertz. | 10-24-2013 |
| 20130280096 | FAN - A fan assembly for creating an air current includes an air inlet, an air outlet, an impeller, a motor for rotating the impeller to create an air flow passing from the air inlet to the air outlet, the air outlet comprising an interior passage for receiving the air flow and a mouth for emitting the air flow, the air outlet defining an opening through which air from outside the fan assembly is drawn by the air flow emitted from the mouth, a control circuit for controlling the motor, a remote control for transmitting control signals to the control circuit, and a plurality of magnets angularly spaced about the air outlet to provide a plurality of angularly spaced docking positions for the remote control on the air outlet. | 10-24-2013 |
| 20130280097 | HYDRAULIC SYSTEM - A method includes providing a hydraulic pump with an outlet, a main orifice having an inlet communicating with the pump outlet, and a main orifice outlet. Further provided are a flow orifice, an amplification orifice, and an amplification orifice outlet, means for generating an output signal representative of a fluid pressure, and a pump controller for controlling the hydraulic pump in response to the output signal. The flow orifice and the amplification orifices each define an area, with these areas defining a ratio, and with the main orifice and the ratio being variable. The method includes operating the system in a first mode so as to define a first mode ratio and operating the system in a second mode so as to define a second mode ratio, so that the ratio is controlled differently in the first mode and the second mode. | 10-24-2013 |
| 20130280098 | MECHANICAL PROTECTION METHOD AND DEVICE - A device and method for providing mechanical protection, and in particular to a mechanical protection device including a transmission shaft with a resonant frequency in bending that corresponds to a predetermined rotary overspeed of the transmission shaft, the transmission shaft being insufficiently damped to avoid breakage of the transmission shaft as a result of the resonance in bending. In the mechanical protection method, the transmission shaft breaks as a result of this resonance in bending. | 10-24-2013 |
| 20130302180 | WARM-UP CONTROL SYSTEM FOR MACHINE TOOL - A warm-up control system for a machine tool drives a spindle motor for rotating a main spindle of the machine tool before starting machining, thereby performing a warm-up operation, and acquires a spindle motor load value that is variable by heat generated during the warm-up operation. The warm-up operation is ended when the acquired spindle motor load value becomes substantially equal to a preset working reference load value. The cutting capacity of the main spindle can be improved by this warm-up operation. | 11-14-2013 |
| 20130343905 | PUMP MOTOR CONTROL ASSEMBLY - A pump motor assembly operable to provide driving power to a fluid pump includes a rotor, a stator, a case housing the rotor and the stator, and a control assembly mounted to the case and operable to control motor operation. The control assembly includes an information display and a cover overlying the display, with a window section in general alignment with the display. The control assembly also includes a filler plate underlying the window section to prevent any air gap along an underside thereof, allowing the display to be visible while reducing the risk of condensation buildup. The control assembly further includes a low voltage housing with the display disposed in a first compartment defined thereby, and a high voltage housing with a high voltage component disposed in a second compartment defined thereby. The low voltage housing includes a thermal and fluid barrier that substantially fluidly separates the first and second compartments to reduce the risk of liquid electrical conduction therebetween and to reduce heat transfer into the low voltage housing. | 12-26-2013 |
| 20140017091 | DISENGAGEABLE COOLANT PUMP FOR ENGINE - A coolant pump includes a drive wheel, a driven wheel, and a coupling-control pump. The driven wheel is connected to a coolant impeller and coupled by a variable degree to the drive wheel, the degree of coupling responsive to an amount of fluid confined between the drive wheel and the driven wheel. The coupling-control pump is configured to change the amount of fluid confined between the drive wheel and the driven wheel based on a variable control signal. | 01-16-2014 |
| 20140023518 | TIRE VALVE - MICRO AIR PUMP - An automatic micro-pump which is able to replace the depleted air in a tire without any required action from the driver of a motor vehicle. Using the kinetic energy of the rotating tire, the micro-pump maintains the tire pressure from losses due to rubber permeability or temperature changes. The micro pump has an off-balance winding wheel ( | 01-23-2014 |
| 20140119945 | SWITCHED RELUCTANCE MOTOR ASSEMBLY AND METHOD OF ASSEMBLING THE SAME - Disclosed herein are a controller embedded switched reluctance motor assembly and a method of assembling thereof. Particularly, according to the present invention, a controller controlling the motor unit is installed in a housing, such that a separate process of installing the controller may be omitted, thereby facilitating assembling of the switched reluctance motor assembly. In addition, since a separate installation space of the controller is not required, a vacuum cleaner including the switched reluctance motor assembly may be miniaturized, and since the controller is installed in a state in which a motor unit and an insulator are coupled to each other and then installed in the housing, intermediate tests of the controller or the motor to unit may be easily performed, such that defects may be reduced. Further, the controller is in the housing, such that the controller may be protected from external disturbance. | 05-01-2014 |
| 20140286792 | Pump Control - A method for configuring a drive to control the operation of a pump in a sewage system is disclosed. The method comprises measuring at least one parameter of the sewage system; using the measurement of the at least on parameter to create an algorithm for the drive to control the operation of the pump; and configuring the drive to use the algorithm to control the operation of the pump. | 09-25-2014 |
| 20170234310 | SYSTEM AND METHOD FOR PREVENTING FLOATING ROD EFFECT IN A SUCKER ROD PUMP | 08-17-2017 |
