Patents by Inventor Ian Douglas Rimmer

Ian Douglas Rimmer 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).

  • Sand plunger for downhole pump
    Patent number: 8535024
    Abstract: A downhole pump has a barrel and plunger. The barrel has a first one-way valve and the plunger has a second done-way valve. The plunger reciprocates with respect to the barrel. The plunger has a first end which has a tapered leading edge. Ports are adjacent to the leading edge. The ports communicate with a passage in the plunger. A sucker rod string coupling is located at the plunger first end. The sucker rod string coupling is coupled to walls located between the ports. The end of the sucker rod string coupling that is coupled to the plunger is tapered so that fluid can flow out of the ports. The sucker rod string coupling and the plunger first end form an integral member that couples to the remainder of the plunger.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: September 17, 2013
    Assignee: Harbison-Fischer, Inc.
    Inventors: Justin Conyers, Ian Douglas Rimmer, Bradley Craig Rogers
  • Method and apparatus for injecting packing into stuffing boxes for reciprocating rods
    Patent number: 8528912
    Abstract: A stuffing box for a polished rod used with a downhole pump uses injectable packing to provide a seal around the polished rod. The stuffing box has a chamber for receiving the packing. The chamber has an opening to allow the addition of packing to the chamber. The packing is maintained in a compacted condition by either injecting additional packing through the opening or adjusting the volume of the chamber.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: September 10, 2013
    Assignee: Harbison-Fischer, Inc.
    Inventors: Mark William Mahoney, Ian Douglas Rimmer, Benny J. Williams
  • METHOD AND APPARATUS FOR INJECTING PACKING INTO STUFFING BOXES FOR RECIPROCATING RODS
    Publication number: 20130175056
    Abstract: A stuffing box for a polished rod used with a downhole pump uses injectable packing to provide a seal around the polished rod. The stuffing box has a chamber for receiving the packing. The chamber has an opening to allow the addition of packing to the chamber. The packing is maintained in a compacted condition by either injecting additional packing through the opening or adjusting the volume of the chamber.
    Type: Application
    Filed: February 28, 2013
    Publication date: July 11, 2013
    Applicant: Harbison-Fischer, Inc.
    Inventors: Mark William Mahoney, Ian Douglas Rimmer, Benny J. Williams
  • Method and apparatus for injecting packing into stuffing boxes for reciprocating rods
    Patent number: 8403331
    Abstract: A stuffing box for a polished rod used with a downhole pump uses injectable packing to provide a seal around the polished rod. The stuffing box has a chamber for receiving the packing. The chamber has an opening to allow the addition of packing to the chamber. The packing is maintained in a compacted condition by either injecting additional packing through the opening or adjusting the volume of the chamber.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: March 26, 2013
    Assignee: Harbison-Fischer, Inc.
    Inventors: Mark William Mahoney, Ian Douglas Rimmer, Benny J. Williams
  • SAND PLUNGER FOR DOWNHOLE PUMP
    Publication number: 20120141310
    Abstract: A downhole pump has a barrel and plunger. The barrel has a first one-way valve and the plunger has a second done-way valve. The plunger reciprocates with respect to the barrel. The plunger has a first end which has a tapered leading edge. Ports are adjacent to the leading edge. The ports communicate with a passage in the plunger. A sucker rod string coupling is located at the plunger first end. The sucker rod string coupling is coupled to walls located between the ports. The end of the sucker rod string coupling that is coupled to the plunger is tapered so that fluid can flow out of the ports. The sucker rod string coupling and the plunger first end form an integral member that couples to the remainder of the plunger.
    Type: Application
    Filed: February 17, 2011
    Publication date: June 7, 2012
    Inventors: Justin Conyers, Ian Douglas Rimmer, Bradley Craig Rogers
  • Method and apparatus for injecting packing into stuffing boxes for reciprocating rods
    Publication number: 20030184019
    Abstract: A stuffing box for a polished rod used with a downhole pump uses injectable packing to provide a seal around the polished rod. The stuffing box has a chamber for receiving the packing. The chamber has an opening to allow the addition of packing to the chamber. The packing is maintained in a compacted condition by either injecting additional packing through the opening or adjusting the volume of the chamber.
    Type: Application
    Filed: March 31, 2003
    Publication date: October 2, 2003
    Inventor: Ian Douglas Rimmer