Patents by Inventor Joel LASSEIGNE

Joel LASSEIGNE 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).

  • Hydraulic oil well pumping apparatus
    Patent number: 9617837
    Abstract: A hydraulic oil well pumping arrangement employs a compensating type hydraulic pump, a directional valving arrangement and a proportioning valving arrangement. When the directional valve is energized, oil is directed to the rod end of the hydraulic cylinder. In one embodiment, a time delay halts the movement of the sucker rod or pumping string to allow accumulation of oil in a slow following well. In another embodiment, the pumping string rapidly falls to the bottom of the stroke in order to shake or jar debris from the string.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: April 11, 2017
    Assignee: Lufkin Industries, LLC
    Inventors: Kenneth H. Vincent, Joel Lasseigne
  • HYDRAULIC OIL WELL PUMPING APPARATUS
    Publication number: 20140196907
    Abstract: A hydraulic oil well pumping arrangement employs a compensating type hydraulic pump, a directional valving arrangement and a proportioning valving arrangement. When the directional valve is energized, oil is directed to the rod end of the hydraulic cylinder. In one embodiment, a time delay halts the movement of the sucker rod or pumping string to allow accumulation of oil in a slow following well. In another embodiment, the pumping string rapidly falls to the bottom of the stroke in order to shake or jar debris from the string.
    Type: Application
    Filed: January 14, 2014
    Publication date: July 17, 2014
    Applicant: Lufkin Industries, Inc.
    Inventors: Kenneth H. VINCENT, Joel LASSEIGNE