Patents by Inventor Hermut Fleissner

Hermut Fleissner 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).

  • Modular inhalation tower for laboratory animals
    Patent number: 4860741
    Abstract: An inhalation tower comprises two columns forming two concentric ducts each made up of segments fitted into one another. The segments forming the outer duct have an external annular portion at one end and an internal annular portion at the other end, the axial height of the latter being less than the height of the external annular portion, so as to leave a space for receiving a plate. The internal duct has radial connecting ducts which open into the end of a cylindrical cavity formed in the external segment, a space being reserved between the connecting duct and the diameter of an opening through the end of the cavity. The cavity is adapted to receive an inhalation chamber borne by the tray.
    Type: Grant
    Filed: January 6, 1988
    Date of Patent: August 29, 1989
    Assignee: Research & Consulting Co. A.G.
    Inventors: David M. Bernstein, Hermut Fleissner