Patents by Inventor Jopling P. Smith

Jopling P. Smith 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
    Patent number: 3985151
    Abstract: A valve actuator for converting linear motion to rotary motion comprising: a housing; a force transmitting member disposed in the housing responsive to pressure applied to one side thereof for travel between first and second terminal positions; a rod member connected to the force transmitting member for reciprocal movement between first and second terminal positions in response to travel of the force transmitting member between its terminal positions; and a crank member connected to the rod member and rotatable in response to reciprocal movement of the rod member, about an axis substantially perpendicular to the axis of the rod member, through an angle of a preselected value.
    Type: Grant
    Filed: June 4, 1975
    Date of Patent: October 12, 1976
    Assignee: Keystone International, Inc.
    Inventor: Jopling P. Smith