Patents by Inventor Charles H. Rogers

Charles H. Rogers 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).

  • Patent number: 4013038
    Abstract: Apparatus for controlling the temperature of an open liquid body when actual measurement of that temperature is not possible. A thermal analog of the liquid body, which is exposed to the same heating or cooling source as the liquid body, is incorporated into a sensor which provides controlling feedback to the heating or cooling source. The sensor, which is disposed in the atmosphere which surrounds or flows by the liquid body, includes a dry element and a wet wick, body of which are in thermal contact with a temperature sensing element. The dry element senses the temperature of the atmosphere and the wet wick has a cooling effect on the sensing element that is related to the rate of evaporation of liquid from the body. This sensor is advantageously employed in a system for regulating the temperature of a reagent film on a microscope slide.
    Type: Grant
    Filed: July 21, 1975
    Date of Patent: March 22, 1977
    Assignee: Corning Glass Works
    Inventors: Charles H. Rogers, Kevin J. Sullivan, Miles E. Vance
  • Patent number: 3982895
    Abstract: In the preparation of blood films for microscopic examination a slide spins in a centrifuge for a time which is a function of the red blood cell concentration of the blood. A drive circuit controls the time of spinning of a slide centrifuge. A variable control for the centrifuge motor includes a manual adjustment which is adjustable across a scale labeled as a function of the percent hematocrit of the blood.
    Type: Grant
    Filed: June 18, 1974
    Date of Patent: September 28, 1976
    Assignee: Corning Glass Works
    Inventors: Lynn G. Amos, James W. Bacus, Robert C. Beaty, Charles H. Rogers
  • Patent number: 3967110
    Abstract: In a system which automatically analyzes laboratory slides, the adjustable objective lens is automatically focused. A beam splitter splits light from the slide into two parts. One slide image is projected to an actual image plane where it is converted into electrical signals representing the optical characteristics of the slide. The other slide image is projected to a parfocal image plane at which two light sensing devices for the focusing system are positioned. One light sensing device is in front of the parfocal image plane and the other is behind the parfocal image plane. These light sensing devices produce electrical signals representing the position of the actual image plane with respect to the desired image plane. The electric signals are differentiated and then applied to a comparator which supplies pulses to a stepping motor which moves the objective lens.
    Type: Grant
    Filed: January 23, 1975
    Date of Patent: June 29, 1976
    Assignee: Corning Glass Works
    Inventors: Charles H. Rogers, Burton H. Sage, Jr.
  • Patent number: 3947121
    Abstract: A device embodying a substrate having at least one longitudinal groove formed in a flat surface thereof for accommodating microstructures for microscopic examination.
    Type: Grant
    Filed: July 30, 1973
    Date of Patent: March 30, 1976
    Assignee: Corning Glass Works
    Inventors: Douglas A. Cotter, Charles H. Rogers