Browsing OSU - Patents Collection by Author "Ramakumar, Ramachandra G."

Now showing items 1-3 of 3

    • Apparatus for Providing Ac Electrical Energy at a Preselected Frequency 

      Hughes, William L.; Allison, Hansel Jack; Ramakumar, Ramachandra G.; Oklahoma State University (U.S. Patent and Trademark Office, 1972-05-16)
      A method and apparatus for providing AC electrical energy at a preselected frequency including a driven AC generator having an externally excitable field, means connected to the generator field for exciting the field at ...

    • Field Modulated Alternator System and Control Therefor 

      Hughes, William L.; Allison, Hansel Jack; Ramakumar, Ramachandra G.; Oklahoma State University (U.S. Patent and Trademark Office, 1973-04-10)
      A polyphase alternator of basic frequency F.sub.2 with a field circuit excited with alternating current of frequency F.sub.1, and including full wave rectifier means across each phase of the alternator, all connected in ...

    • High Pressure Storage Vessel 

      Hughes, William L.; Allison, Hansel Jack; Ramakumar, Ramachandra G.; Oklahoma State University (U.S. Patent and Trademark Office, 1972-11-28)
      A method of manufacture of a high pressure gas storage vessel having a body of particles in the form of a porous solid mass, a conduit having one end within the porous solid body, the conduit extending from the body providing ...