Patents by Inventor Leonard C. Sotz

Leonard C. Sotz 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).

  • APPARAUTS FOR FLUID PUMPING
    Publication number: 20150176578
    Abstract: A fluid balanced hydraulic pump has a support tower that can be mounted over a well. At least one cylinder assembly is pivotally mounted within the support tower. A prime mover provides hydraulic fluid to the at least one cylinder assembly through a wedge spool control valve that provides precise speed control with minimal maintenance requirements. Stroke speed can be easily and quickly adjusted without the need for expensive, troublesome or complicated electronic equipment.
    Type: Application
    Filed: February 24, 2015
    Publication date: June 25, 2015
    Inventors: Leonard C. Sotz, John Van Krevel
  • Method and Apparatus for Fluid Pumping
    Publication number: 20120224977
    Abstract: A fluid balanced hydraulic pump has a support tower that can be mounted over a well. At least one cylinder assembly is pivotally mounted within the support tower. A prime mover provides hydraulic fluid to the at least one cylinder assembly through a wedge spool control valve that provides precise speed control with minimal maintenance requirements. Stroke speed can be easily and quickly adjusted without the need for expensive, troublesome or complicated electronic equipment.
    Type: Application
    Filed: March 5, 2012
    Publication date: September 6, 2012
    Inventors: Leonard C. Sotz, John Van Krevel