Patents by Inventor Hussain Hashemizadeh

Hussain Hashemizadeh 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).

  • Split seat shear valve
    Patent number: 9316322
    Abstract: A gate valve has a gate valve seat for sealing a valve body to a gate of the gate valve. The valve seat extends from a flow passage of the valve body into a cavity of the valve body parallel to an axis of the flow passage. The cavity is perpendicular to the flow passage, and the gate is disposed within the cavity. The valve seat has a tubular body having a face for contact with a gate, and an end opposite the face adjacent to and in contact with the valve body. The valve seat also includes a sleeve positioned on an inner diameter of the tubular body, the sleeve adapted to receive a shear force for shearing a member extending through the flow passage, the inner sleeve having an adjustable length.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: April 19, 2016
    Assignee: Vetco Gray U.K. Limited
    Inventors: David James Alexander, Prabhu Palanisamy, Hussain Hashemizadeh
  • Rotational shear valve
    Patent number: 9309737
    Abstract: A rotating gate valve can be used to shear cables or tubing as it closes to obstruct flow. In embodiments, a valve body can have a flow passage and a lateral bore that is transverse to the flow passage. The gate can have a generally cylindrical shape and can rotate about the axis of the gate as it moves laterally to close a flow passage. The lateral and rotational movement can shear articles such as, for example, cables and tubing that extend through the flow passage.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: April 12, 2016
    Assignee: Vetco Gray U.K. Limited
    Inventors: David J. Alexander, Prabhu Palanisamy, Hussain Hashemizadeh
  • Split Seat Shear Valve
    Publication number: 20140001390
    Abstract: A gate valve has a gate valve seat for sealing a valve body to a gate of the gate valve. The valve seat extends from a flow passage of the valve body into a cavity of the valve body parallel to an axis of the flow passage. The cavity is perpendicular to the flow passage, and the gate is disposed within the cavity. The valve seat has a tubular body having a face for contact with a gate, and an end opposite the face adjacent to and in contact with the valve body. The valve seat also includes a sleeve positioned on an inner diameter of the tubular body, the sleeve adapted to receive a shear force for shearing a member extending through the flow passage, the inner sleeve having an adjustable length.
    Type: Application
    Filed: July 2, 2012
    Publication date: January 2, 2014
    Applicant: Vetco Gray U.K., Limited
    Inventors: David James Alexander, Prabhu Palanisamy, Hussain Hashemizadeh
  • ROTATIONAL SHEAR VALVE
    Publication number: 20130327536
    Abstract: A rotating gate valve can be used to shear cables or tubing as it closes to obstruct flow. In embodiments, a valve body can have a flow passage and a lateral bore that is transverse to the flow passage. The gate can have a generally cylindrical shape and can rotate about the axis of the gate as it moves laterally to close a flow passage. The lateral and rotational movement can shear articles such as, for example, cables and tubing that extend through the flow passage.
    Type: Application
    Filed: June 8, 2012
    Publication date: December 12, 2013
    Applicant: Vetco Gray UK Limited
    Inventors: David J. Alexander, Prabhu Palanisamy, Hussain Hashemizadeh