Patents by Inventor Thomas A. Zucal

Thomas A. Zucal 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).

  • Vapor detection tube and method of testing for a vapor
    Patent number: 4481297
    Abstract: A vapor detection tube is disclosed, the tube holding an adsorbent material for adsorbing vapors, the tube having at least one end with a constriction near the end and the diameter at the far end of the tube being of about the same diameter as the main portion of the tube. There is disclosed plastic sealing caps for sealing the ends of the tube for safe and contamination free handling and shipping, the tube being so constructed and arranged that it can be easily broken at the constriction in a clean and uniform manner to provide an open tube for sampling and the tube being easily sealed by sealing members after the sampling is finished and before analysis is made.
    Type: Grant
    Filed: May 13, 1982
    Date of Patent: November 6, 1984
    Assignee: Owens-Illinois, Inc.
    Inventors: Thomas A. Zucal, John D. McIntosh