Water jet pool cleaner with opposing dual propellers

  • US 9,765,544 B2
  • Filed: 08/11/2011
  • Issued: 09/19/2017
  • Est. Priority Date: 02/11/2010
  • Status: Active Grant
First Claim
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1. A self-propelled pool cleaner for cleaning a submerged surface of a pool or tank comprising:

  • a water pump that includes a reversible electric pump motor having a drive shaft with a first propeller connected to one end of the drive shaft and a second propeller connected to an opposing end of the drive shaft, the axis of the drive shaft extending along a longitudinal axis of the pool cleaner;

    a housing having an upper portion over a lower portion and defining an interior chamber in which the water pump is mounted, the upper portion of the housing having a first discharge port at one end and a second discharge port at an other end of the housing, each of the discharge ports selectively being in an open position while the other is in a closed position to directionally discharge a water jet that propels the pool cleaner in a direction of movement corresponding generally to the longitudinal axis of the pool cleaner;

    a pair of discharge conduits, wherein one of the pair of discharge conduits is positioned between the reversible electric pump motor and one of the first or second discharge ports at one end of the housing, and the other of the pair of discharge conduits is positioned between the reversible electric pump motor and the other of the first or second discharge ports at the other end of the housing, the first propeller being positioned adjacent to one of the pair of the discharge conduits in the interior chamber and the second propeller being positioned adjacent to the other of the pair of discharge conduits in the interior chamber; and

    wherein pressurized water selectively discharged as the water jet by one or the other of the discharge ports is determined by a direction of rotation of the drive shaft of the reversible electric pump motor.

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