Patents Examined by Abraham Hershkovltz
  • Actuator mechanism for a rotary valve or the like
    Patent number: 4325535
    Abstract: An actuator for a rotary valve preferably embodying a diaphragm motor operated by pressure fluid. A driving sleeve is reciprocated linearly by the diaphragm motor and within said sleeve is a rotatable shaft, which is axially aligned with the diaphragm motor and driven by a ball screw. A driven sleeve is fixed to said shaft and receives the stem of the valve. All parts are in linear alignment. Means are provided for limiting the extent of the linear movement of the parts.
    Type: Grant
    Filed: March 26, 1980
    Date of Patent: April 20, 1982
    Assignee: Baker CAC, Inc.
    Inventor: Stephen R. Foster