Patents by Inventor Richard C. Moessner

Richard C. Moessner 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: 5573952
    Abstract: A process for measuring and controlling the concentration of a solution at an aim point of an amide solvent and aramid polymers having aromatic and aliphatic carbon-hydrogen bonds that overlap using a near-infrared analyzer.
    Type: Grant
    Filed: August 12, 1994
    Date of Patent: November 12, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Richard C. Moessner
  • Patent number: 5523563
    Abstract: A preferred temperature control strategy was devised to remove heat from the analyzer and control the optical bench temperature continuously at aim. A foil-type RTD temperature detector is fastened to the optical bench to serve as a measurement input device for a PID control strategy, which is truly aim-seeking. The control strategy employs a heat pipe technology to remove heat from the analyzer enclosure. A heat pipe utilizes a fluid (such as an alcohol) to remove heat by evaporation of the fluid at an internal air circulation heat exchanger and then recondensing the fluid at an external air circulation heat exchanger. The PID temperature controller achieves the desired temperature setpoint by manipulation of heat exchanger fan speeds. The heat removal rate can be very precisely controlled.
    Type: Grant
    Filed: August 12, 1994
    Date of Patent: June 4, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Richard C. Moessner