Now showing items 1-6 of 6

    • Automatic Back Hoe Control System 

      Caywood, James A.; De Moss, Dean M.; Fitch, Ernest C.; Osborn, Ronald F.; Matous, James O.; Oklahoma State University of Agriculture & Applied Science (U.S. Patent and Trademark Office, 1967-09-05)
      This invention relates to a backhoe, and more particularly, to a hydraulically actuated backhoe. Still more particularly, this inventiona relates to an automatice hydraulic backhoe control system which may be placed in ...
    • Compressed Air Cleaning System for Turbine 

      Reed, Robert E.; Fitch, Ernest C.; Oklahoma State University (U.S. Patent and Trademark Office, 1970-02-10)
      A compressed air cleaning system. More particularly, the invention includes a system for providing compressed clean air and wherein compressed air is directed through a cyclonic device in which is established a free and a ...
    • Hydraulic Signal Control Valve 

      Caywood, James A.; De Moss, Dean M.; Fitch, Ernest C.; Osborn, Ronald F.; Oklahoma State University of Agriculture & Applied Science (U.S. Patent and Trademark Office, 1968-06-16)
      This invention relates to a hydraulic valve. . . . The valve further includes detent means to insure that the valve spool, when moved from the nonactuated to the actuated position and vice-versa, moves quickly from one ...
    • Hydroclones 

      Bose, Robert E.; Fitch, Ernest C.; Gerlach, Charles Richard; Oklahoma State University of Agriculture & Applied Science (U.S. Patent and Trademark Office, 1966-02-15)
      This invention relates to cyclone separators. More particularly, ths invention relates to improvements in cyclone separators making possible the separation of dense components from fluids at a higher degree of efficiency ...
    • Regenerative Hydrocyclone 

      Fitch, Ernest C.; Reed, Robert E.; Comer, Alva G.; Board of Regents/Oklahoma State University and the A & M Colleges (U.S. Patent and Trademark Office, 1970-03-17)
      This invention relates to a regenerative hydroclone for the seperation of entrained solid particles from a fluid medium. More particularly, the invention relates to a hydroclone for the seperation of solid contaminant ...
    • Statistical Analog Monitor 

      Roberts, Gray A.; Fitch, Ernest C.; Board of Regents/Oklahoma State University and the A & M Colleges (U.S. Patent and Trademark Office, 1975-10-07)
      This abstract describes an instrument for the statistical study of the various analog parameters of a physical operation, which vary with time. The parameters may be, for example, voltage, pressure, volume, etc. A selected ...