Patents by Inventor Mark Corsentino

Mark Corsentino 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).

  • Variable and slow speed pumping unit
    Patent number: 7533730
    Abstract: A pumping unit is provided with a hydraulic drive unit. The drive includes a hydraulic motor attached to a driven sheave that, through reduction gears, drives a drive shaft and crank arm that causes the pumping unit to pump. The speed of the hydraulic motor is controlled by hydraulic pump in fluid communication with the hydraulic motor. A prime mover drives the hydraulic pump. The speed of the hydraulic pump (and the hydraulic motor by correlation) is controlled by a speed control on the prime mover and/or a flow control valve.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: May 19, 2009
    Assignee: XTO Energy Inc.
    Inventor: Mark Corsentino