Patents by Inventor Robert J. Hinkle

Robert J. Hinkle 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).

  • SETTLED DUST MEASUREMENT SYSTEM USING PHOTORESISTORS
    Publication number: 20240102909
    Abstract: A method includes projecting light to obtain a reference measurement using a first photoresistor; collecting dust on a platform during a collection time interval; and projecting light across the platform to obtain a dust measurement using the first photoresistor or a second photoresistor.
    Type: Application
    Filed: September 28, 2023
    Publication date: March 28, 2024
    Inventors: Robert W. Baxter, Derrick J. Hinkle, Ralph E. Bard, John N. Simpson
  • Spinning band fractionating column
    Patent number: 4770746
    Abstract: Spinning band fractionating column apparatus is disclosed having a spinning band formed with a magnet embedded in its bottom end in the manner of a magnetic stirring vane for rotation by a rotating external magnetic field at the bottom of the apparatus. Reflux is controlled by an angled drip edge on a rotatable condenser column that passes a portion of dripped condensate to a collecting spout with the portion varying as rotation of the condenser column brings the drip from said edge closer or further from center opposition with the spout.
    Type: Grant
    Filed: January 5, 1987
    Date of Patent: September 13, 1988
    Assignee: Microscale Organic Laboratory Corporation
    Inventors: Dana W. Mayo, Ronald M. Pike, Robert J. Hinkle