Patents by Inventor Kenneth J. Melda

Kenneth J. Melda 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).

  • Sample dilution system for supercritical fluid chromatography
    Patent number: 4681678
    Abstract: An apparatus for analyzing a process stream (1) via supercritical fluid chromatography including container means (10), extraction means (50) for drawing a known sample volume from the process stream and injecting the sample volume into a known volume of supercritical fluid to form a dilute mix (5), analyzer means (70) for analyzing the dilute mix via supercritical fluid chromatography, sample inlet valve means (60) for receiving the dilute mix from the extraction means (50) and supplying a portion of the dilute mix to the analyzer means (70), pneumatically driven piston-type pump means (30) for drawing the substance from the container means (10) and delivering same under pressure either to the extraction means (50) or to the analyzer means (70) as desired, and control means (40) for supplying low pressure air to the pump means (30) in a controlled manner so as to draw the substance from the container means (10) and maintain the substance at a desired pressure above the supercritical pressure for delivery to t
    Type: Grant
    Filed: October 10, 1986
    Date of Patent: July 21, 1987
    Assignee: Combustion Engineering, Inc.
    Inventors: Emory J. Leaseburge, Kenneth J. Melda