Browsing Patents by Issue Date

Now showing items 21-40 of 208

    • 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 ...

    • 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 ...

    • 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 ...

    • Dispersed Growth Biological Sewage Treatment Process 

      Fincannon, Don F.; Maciula, L. Andrew; Tiederman, William G., Jr.; Oklahoma State University (U.S. Patent and Trademark Office, 1973-10-30)
      A dispersed growth biological secondary sewage treatment process for removing dissolved organic material and suspended solid material from sewage including metabolizing the dispersed biological solids to yield new cell ...

    • Hydroclone for Simultaneously Separating Immiscible Heavier Liquids and Solids from a Liquid Medium 

      Maciula, L. Andrew; Tiederman, William G., Jr.; Reed, Robert E.; Oklahoma State University (U.S. Patent and Trademark Office, 1973-12-04)
      A hydroclone for simultaneously separating immiscible heavier liquids from a lighter liquid medium and solids from the lighter liquid including a cylindrical portion having an inlet tangentially intersecting the interior ...

    • Hydroclone for Separating an Immiscible Heavy Phase from a Light Phase Liquid 

      Maciula, L. Andrew; Oklahoma State University (U.S. Patent and Trademark Office, 1974-01-08)
      A hydroclone for separating an immiscible heavy phase from a light phase liquid including an upright cylindrical chamber having a tangentially intersecting inlet, an axial light phase outlet at the upper end thereof, a ...

    • 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 ...

    • Aggregate Surface Area Measurement Method 

      Ford, Jr., Miller C.; Manke, Phillip G.; Oklahoma State University (U.S. Patent and Trademark Office, 1975-10-28)
      Method and apparatus for determining the exposed surface area of a plurality of samples of selected mineral aggregate particles which have previously been coated with asphalt and subsequently partially stripped of asphalt. ...

    • Removable Arthropod Repellent Device for Attachment to the Ear of an Agricultural Animal 

      Hair, Jakie A.; Randolph, Thomas C.; Board of Regents/Oklahoma State University and the A & M Colleges (U.S. Patent and Trademark Office, 1976-03-09)
      An arthropod repellent device for attachment to the pinnal portion of the ear of an agricultural animal, such as a cow, horse, sheep, goat, swine or the like, including a band or belt of flexible plastic material of about ...

    • Azasteroids Compounds and Derivatives 

      Berlin, Kenneth Darrell; Durham, Norman Nevill; Desjardins, Claude; Board of Regents/Oklahoma State University and the A & M Colleges (U.S. Patent and Trademark Office, 1976-10-19)
      Azasteroids and certain derivatives each of a five ring system containing at least one aromatic nucleus and at least one nitrogen atom. The ring system is fused to a tetrahydrotetralin system or a tetrahydrophenanthrene ...

    • Automatic Control Means for Infinitely Variable Transmission 

      Woods, Robert L.; Reid, Karl N., Jr.; Gunda, Rajamouli; Oklahoma State University (U.S. Patent and Trademark Office, 1977-05-17)
      This invention describes a system of control for a power source-transmission-load system such as might be used on an off-the-road vehicle, for example. The power source is an internal combustion engine having a known optimum ...

    • Intermittent Positive Pressure Breathing Device 

      Reid, Karl N., Jr.; Ross, James Burr; Murali, Beegamudre N.; Oklahoma State University (U.S. Patent and Trademark Office, 1977-11-08)
      A ventilator implemented completely with fluidic devices provides independent control of inhalation time, exhalation time and breathing gas flow rate. The basic fluidic system comprises a low frequency oscillator which in ...

    • Self-contained Solar Greenhouse 

      Whitcomb, Carl E.; Board of Regents for Oklahoma Agricultural and Mechanical Colleges (U.S. Patent and Trademark Office, 1979-11-06)
      A solar heated greenhouse formed with a rectangular floor having parallel sides and ends, a quonset type roof structure supported above the floor, the roof extending to the floor sides, the roof being formed of an inner ...

    • Method of Manufacturing a High Protein Snack Food 

      Mickle, James B.; Smith, Wanda J.; Dieken, Laurel M.; Board of Regents/Oklahoma State University and the A & M Colleges (U.S. Patent and Trademark Office, 1980-01-15)
      A method of manufacturing a high protein snack food including the steps of inoculating whey, such as derived from cheese making, with yeast, incubating the mixture with aeration until substantially all the whey lactose is ...

    • Micronutrient Fertilizer 

      Whitcomb, Carl E.; Board of Regents/Oklahoma State University and the A & M Colleges (U.S. Patent and Trademark Office, 1982-05-04)
      Micronutrient fertilizer consisting of iron, manganese, copper, boron, and zinc in which the manganese-to-iron ratio is 8 to 20%, the copper-to-iron ratio is 5 to 10%, the boron-to-iron ratio is 0.4 to 1.0%, and the ...

    • Method of Depositing Doped Amorphous Semiconductor on a Substrate 

      Rockley, Mark G.; Mains, Gilbert J.; Board of Regents/Oklahoma State University and the A & M Colleges (U.S. Patent and Trademark Office, 1982-09-07)
      A method of depositing a doped amorphous semiconductor on a base material including the steps of subjecting the base to an environment including a semiconductor gas such as silane or germane, a dopant gas such as arsine, ...

    • Root-pruning Container 

      Whitcomb, Carl E.; Board of Regents for the Oklahoma Agricultural & Mechanical Colleges acting for Oklahoma State University (U.S. Patent and Trademark Office, 1984-04-17)
      A root-pruning container involving a series of vertical pyramid like staircase stepped surfaces essentially parallel to the sidewall of said container and displaced to the inside of said container, wherein the vertical and ...

    • Air-root-pruning Container 

      Whitcomb, Carl E.; Board of Regents/Oklahoma State University and the A & M Colleges (U.S. Patent and Trademark Office, 1985-02-05)
      A vertical air-root-pruning container involving a series of vertical offsets or air gaps displaced around the sidewall of a container. The offsets or air gaps are alternately displaced outwardly or inwardly to air-prune ...

    • Air-root-pruning Container 

      Whitcomb, Carl E.; Board of Regents for the Oklahoma Agriculture and Mechanical Colleges Acting for an in Behalf of Oklahoma State University (U.S. Patent and Trademark Office, 1985-04-16)
      A vertical air-root-pruning container involving a series of vertical air gaps displaced around the sidewall of a container. The air gaps are alternately displaced outwardly or inwardly to air-prune spiral root growth in ...

    • 3-thia-7-azabicyclo(3.3.L)Nonanes and Derivatives as Antiarrhythmic Agents 

      Berlin, Kenneth Darrell; Scherlag, Benjamin J.; Bailey, Bruce R., III; Holt, Elizabeth M.; Oklahoma State University (U.S. Patent and Trademark Office, 1986-04-08)
      3-Thia-7-azabicyclo(3.3.1)nonanes and derivatives thereof are disclosed. The preparation of these compounds is given. Their use as antiarrhythmic agents is given.