Patents by Inventor Frank L. Buchanan, Jr.

Frank L. Buchanan, Jr. 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: 4514362
    Abstract: A mixing chamber designed for ready disassembly is described in which a generally spherical-shaped outer container encloses an inner sphere. Entry and exit openings are provided on opposite sides of the outer sphere, so that breath specimens pass through the chamber between the outer surface of the inner sphere and the inner surface of the outer sphere and undergo thorough mixing with low back pressure over a wide flow range. The interior volume can be increased by using a hollow inner sphere with an opening through the wall thereof to permit the inner sphere to fill with breath specimen also.
    Type: Grant
    Filed: October 28, 1982
    Date of Patent: April 30, 1985
    Inventors: Frank L. Buchanan, Jr., Bob B. Buchanan
  • Patent number: D275846
    Type: Grant
    Filed: May 24, 1982
    Date of Patent: October 9, 1984
    Inventors: Frank L. Buchanan, Jr., Bob B. Buchanan