Patents by Inventor Larry Vyvial

Larry Vyvial 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).

  • Valve, actuator and control system therefor
    Patent number: 7300035
    Abstract: A valve actuator comprising a lower housing comprising a mounting spool that is operable to couple to a valve body. A rotating sleeve is disposed within the lower housing and coupled to a stem connector. A fixed sleeve in disposed within the lower housing and includes a first slot disposed therethrough. A second slot is disposed in the rotating sleeve, wherein at least one of the slots is a helical slot. An axle engages both the first slot and the second slot. A shaft is coupled to the axle and extends through a connector flange that is coupled to an upper end of the lower housing. A piston is coupled to the shaft and movably disposed within an upper housing that is coupled to the connector flange. Axial movement of the piston within the upper housing will result in rotational movement of the rotating sleeve.
    Type: Grant
    Filed: August 24, 2005
    Date of Patent: November 27, 2007
    Assignee: Cameron International Corporation
    Inventors: Albert S. Davis, John M. Saldivar, David R. Mefford, Frank J. Arriens, Daryl L Ard, Anthony Laitkep, Leonard Martinak, Larry Vyvial, Jim Mohrfield
  • Valve, actuator and control system therefor
    Publication number: 20060022159
    Abstract: A valve actuator comprising a lower housing comprising a mounting spool that is operable to couple to a valve body. A rotating sleeve is disposed within the lower housing and coupled to a stem connector. A fixed sleeve in disposed within the lower housing and includes a first slot disposed therethrough. A second slot is disposed in the rotating sleeve, wherein at least one of the slots is a helical slot. An axle engages both the first slot and the second slot. A shaft is coupled to the axle and extends through a connector flange that is coupled to an upper end of the lower housing. A piston is coupled to the shaft and movably disposed within an upper housing that is coupled to the connector flange. Axial movement of the piston within the upper housing will result in rotational movement of the rotating sleeve.
    Type: Application
    Filed: August 24, 2005
    Publication date: February 2, 2006
    Applicant: Cooper Cameron Corporation
    Inventors: Albert Davis, John Saldivar, David Mefford, Frank Arriens, Daryl Ard, Anthony Laitkep, Leonard Martinak, Larry Vyvial, Jim Mohrfield