Battery-powered pump

Abstract

A pump comprising a housing, a motor disposed within the housing, and an impeller driven by the motor and configured to create a low-pressure region to draw fluid into the housing. The pump further includes a battery electrically coupled to the motor and configured to selectively supply electrical current to the motor and a controller operable to control operation of the motor.

1 . A pump comprising:
 a housing;   a motor disposed within the housing;   an impeller driven by the motor and configured to create a low-pressure region to draw fluid into the housing;   a battery electrically coupled to the motor and configured to selectively supply electrical current to the motor; and   a controller operable to control operation of the motor.   
     
     
         2 . The pump of  claim 1 , further comprising a port on the housing, the port configured to receive a hose. 
     
     
         3 . The pump of  claim 2 , further comprising a quick disconnect mechanism configured to connect the hose to the port. 
     
     
         4 . The pump of  claim 1 , further comprising:
 a cord having a first end coupled to the housing, the cord usable to lower the housing into the fluid, and   a battery receptacle coupled to an opposite, second end of the cord, wherein the battery is electrically connected to the battery receptacle.   
     
     
         5 . The pump of  claim 4 , wherein the controller is disposed within the battery receptacle. 
     
     
         6 . The pump of  claim 4 , wherein the controller is disposed within the housing. 
     
     
         7 . The pump of  claim 1 , wherein the battery is disposed within the housing. 
     
     
         8 . The pump of  claim 7 , wherein the controller is disposed within the housing. 
     
     
         9 . The pump of  claim 1 , wherein the pump is configured to be daisy-chained to an additional pump, such that a series of one or more additional pumps may be coupled together. 
     
     
         10 . The pump of  claim 4 , wherein the cord is an electrical cord. 
     
     
         11 . The pump of  claim 4 , wherein the cord is a rope. 
     
     
         12 . A pump comprising:
 a housing;   a motor disposed within the housing;   an impeller driven by the motor and configured to create a low-pressure region to draw fluid into the housing;   a battery receptacle configured to receive a battery that may selectively supply electrical current to the motor;   a controller operable to control operation of the motor; and   a user interface in communication with the controller and operable to adjust at least one operational characteristic of the pump.   
     
     
         13 . The pump of  claim 12 , wherein the user interface is provided on the housing. 
     
     
         14 . The pump of  claim 12 , wherein the user interface is provided on a remote control that is in wireless communication with the controller. 
     
     
         15 . The pump of  claim 12 , wherein the user interface is configured to adjust a rotational speed of the motor. 
     
     
         16 . The pump of  claim 12 , further comprising a cord coupled to the housing, wherein the cord is usable to lower the housing into the fluid. 
     
     
         17 . The pump of  claim 16 , wherein the battery receptacle is connected to the housing via the cord, and wherein the user interface is disposed on the battery receptacle. 
     
     
         18 . The pump of  claim 12 , wherein the pump is configured to be daisy-chained to an additional pump, such that a series of one or more additional pumps may be coupled together. 
     
     
         19 . The pump of  claim 12 , wherein the relationship between impeller speed of the impeller and power output of the battery is cubic. 
     
     
         20 . The pump of  claim 12 , wherein the user interface allows selection between at least three modes to change the operational characteristic of the pump:
 an economy mode that prioritizes run time of the battery over a volumetric flow rate produced by the impeller,   a fast mode that prioritizes the volumetric flow rate produced by the impeller over run time of the battery, and   a standard mode that optimizes both the run time of the battery and the volumetric flow rate produced by the impeller.   
     
     
         21 . The pump of  claim 12 , wherein the controller detects current drawn by the motor and is configured to deactivate the motor in response to the current reaching a predetermined value to conserve run time of the battery. 
     
     
         22 .- 35 . (canceled)