Patents by Inventor Kenneth D. Arfman

Kenneth D. Arfman 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).

  • Multi-purpose plural-oven gas chromatography system with shared controls
    Patent number: 4869876
    Abstract: A gas chromatography (GC) system includes a primary complete, independently-operable, self-contained GC system and a secondary, dependently-operable GC system. The primary and secondary systems have two independently controlled GC ovens. Injectors and detectors are supported by heater blocks or ovens mounted on the respective GC ovens and are connected to the electrical and pneumatic controls of the primary GC system. The injectors and detectors of the secondary GC system share operation of the primary GC system. GC columns can be mounted in each oven and operated completely independently or dependently in different ways. A separate power supply for the secondary oven is connectable to a separate circuit or power line in the user environment.
    Type: Grant
    Filed: April 30, 1984
    Date of Patent: September 26, 1989
    Assignee: International Business Machines Corp.
    Inventors: Kenneth D. Arfman, Theodore J. Pillera, II, Raymond R. Ruckel, Allan C. Turits, John Q. Walker