Patents by Inventor John C. Bessman

John C. Bessman 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 mechanism for valves
    Patent number: 9316323
    Abstract: A valve assembly includes a first piston member displaceably disposed within a first chamber. A second piston member is coupled to a valve closure element, such as a diaphragm, and the second piston member is disposed within a second chamber. A longitudinal displacement of the first piston member relative to the first chamber causes hydraulic fluid disposed within the first chamber to longitudinally displace the second piston member such that the valve closure element engages a valve seat to close the valve assembly. The area of the second piston member is greater than that of the first piston member to multiply the force provided by an actuator that displaces a valve stem coupled to the first piston member.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: April 19, 2016
    Assignee: FISHER CONTROLS INTERNATIONAL LLC
    Inventors: Moses A. Muci, John C. Bessman
  • Hydraulic Mechanism for Valves
    Publication number: 20130334449
    Abstract: A valve assembly includes a first piston member displaceably disposed within a first chamber. A second piston member is coupled to a valve closure element, such as a diaphragm, and the second piston member is disposed within a second chamber. A longitudinal displacement of the first piston member relative to the first chamber causes hydraulic fluid disposed within the first chamber to longitudinally displace the second piston member such that the valve closure element engages a valve seat to close the valve assembly. The area of the second piston member is greater than that of the first piston member to multiply the force provided by an actuator that displaces a valve stem coupled to the first piston member.
    Type: Application
    Filed: June 14, 2012
    Publication date: December 19, 2013
    Applicant: FISHER CONTROLS INTERNATIONAL LLC
    Inventors: Moses A. Muci, John C. Bessman