Patents by Inventor Eric Gunderson

Eric Gunderson 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).

  • Abrasive liquid pump apparatus and method
    Patent number: 6568925
    Abstract: An abrasive liquid pump having a pump housing and a piston component configured for slidable movement within the pump housing. The pump housing has a bottom housing portion with a bottom end and a bottom mid-pump end and a top housing portion with a top end and a top mid-pump end. The top portion is removably attached to the bottom portion. The piston component has a top piston assembly on one end having at least one sealing component for sealable engagement against an inner surface of the top housing portion and a bottom piston assembly on the other end having at least on sealing component for sealable engagement against an inner surface of the bottom housing portion.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: May 27, 2003
    Inventor: Eric Gunderson
  • Abrasive liquid pump apparatus and method
    Publication number: 20020141891
    Abstract: An abrasive liquid pump having a pump housing and a piston component configured for slidable movement within the pump housing. The pump housing has a bottom housing portion with a bottom end and a bottom mid-pump end and a top housing portion with a top end and a top mid-pump end. The top portion is removably attached to the bottom portion. The piston component has a top piston assembly on one end having at least one sealing component for sealable engagement against an inner surface of the top housing portion and a bottom piston assembly on the other end having at least on sealing component for sealable engagement against an inner surface of the bottom housing portion.
    Type: Application
    Filed: March 28, 2001
    Publication date: October 3, 2002
    Inventor: Eric Gunderson