Patents by Inventor Andrzej Pecherzewski

Andrzej Pecherzewski has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Impeller puller
    Patent number: 9296096
    Abstract: An impeller remover with four main components: two legs, a leg holder and a latch. The latch has a locking notch that engages with a locking bolt on one leg to hold the legs parallel when removing an impeller. The impeller remover removes impellers quickly, easily, and without damage to the impeller or pump. In addition, the impeller remover is easy to use and repair, and relatively inexpensive to replace and fabricate.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: March 29, 2016
    Inventor: Andrzej Pecherzewski
  • Impeller Puller
    Publication number: 20140157562
    Abstract: An impeller remover with four main components: two legs, a leg holder and a latch. The latch has a locking notch that engages with a locking bolt on one leg to hold the legs parallel when removing an impeller. The impeller remover removes impellers quickly, easily, and without damage to the impeller or pump. In addition, the impeller remover is easy to use and repair, and relatively inexpensive to replace and fabricate.
    Type: Application
    Filed: May 20, 2013
    Publication date: June 12, 2014
    Inventor: Andrzej Pecherzewski
  • Impeller installation tool
    Patent number: 8312607
    Abstract: A tool for installing a flexible impeller on a drive shaft in the impeller cavity in a water pump including a gripping surface extending about an upper portion of the tool and an open ended channel extending axially through the tool for receiving and releasably retaining a flexible impeller therein in a compressed state. The channel has an upper portion circumscribed by an annular outwardly inclined impeller abutment surface and a lower constant radius portion circumscribed by a depending cylindrical wall. The inclined impeller abutment surface terminates in the constant radius portion.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: November 20, 2012
    Inventor: Andrzej Pecherzewski
  • Impeller Installation Tool
    Publication number: 20110146044
    Abstract: A tool for installing a flexible impeller on a drive shaft in the impeller cavity in a water pump including a gripping surface extending about an upper portion of the tool and an open ended channel extending axially through the tool for receiving and releasably retaining a flexible impeller therein in a compressed state. The channel has an upper portion circumscribed by an annular outwardly inclined impeller abutment surface and a lower constant radius portion circumscribed by a depending cylindrical wall. The inclined impeller abutment surface terminates in the constant radius portion.
    Type: Application
    Filed: December 18, 2009
    Publication date: June 23, 2011
    Inventor: Andrzej Pecherzewski