FRANKLIN ELECTRIC COMPANY, INC. Patent applications |
Patent application number | Title | Published |
20160003242 | SYSTEM AND METHOD FOR OPERATING A PUMP - A pumping system and method for operating a pumping system including a motor coupled to a variable speed drive to drive a pump. A torque indicator corresponding to the torque presented to the drive is determined. The torque indicator may be used to detect a fault if it exceeds a baseline torque, or to detect a defective transducer, or to detect a system change by perturbing one parameter and comparing another to a predicted value. | 01-07-2016 |
20150159657 | IN-LINE PRESSURE BOOSTING SYSTEM AND METHOD - A pressure boosting system and a method of using the same to increase fluid pressure in a fluid distribution system are disclosed. The pressure boosting system may be installed “in-line” with the fluid distribution system. | 06-11-2015 |
20140093403 | PORTABLE PUMPING SYSTEM - A portable fluid pump including a frame; a first fuel reservoir having a first upper boundary; a second fuel reservoir having a second upper boundary; an engine disposed laterally between the first and second fuel reservoirs; and a pump disposed laterally between the first and second reservoirs. The pump includes an intake pipe having a central axis; the central axis passing through a first point that is located less than two inches above the first upper boundary. | 04-03-2014 |
20130183174 | SOLENOID PUMP - A solenoid pump for moving a fluid is disclosed. The pump includes a solenoid coil that generates an electromagnetic field for moving a plunger relative to a stationary core. Magnetic components of the solenoid pump direct the electromagnetic field to provide a substantially balanced magnetic force on the plunger. | 07-18-2013 |
20130002187 | VARIABLE SPEED DRIVE SYSTEM - This disclosure relates to a variable speed drive for driving a single phase motor. The variable speed drive generates enhanced motor voltages including harmonic components configured to reduce torque pulsations. | 01-03-2013 |
20120326640 | ADAPTIVE FLUX CONTROL DRIVE - This disclosure relates to a variable speed drive for driving a motor having a starting circuit. The variable speed drive adaptively generates motor voltages to reduce the likelihood of starting circuit intrusions. | 12-27-2012 |
20110129368 | VARIABLE SPEED DRIVE SYSTEM - This disclosure relates to a control system for driving a motor. The motor may include a cut-out circuit. The control system may include a buck-boost circuit to limit the rate of change of an output voltage before the output voltage is applied to operate the motor. | 06-02-2011 |
20110027072 | BYPASS SYSTEM FOR PURGING AIR FROM A SUBMERSIBLE PUMP - A submersible pump, and method of making the submersible pump, is disclosed. The pump comprises a housing, a plurality of impeller stages serially disposed in the housing from a bottom impeller stage to a top impeller stage, an impeller bypass hole extending through one of the impeller stages and a housing bypass hole extending through the housing radially outwardly from one of the impeller stages. | 02-03-2011 |