Patents by Inventor Andre E. Sieffert

Andre E. Sieffert 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).

  • Device for the taking of air probes in a sequential manner
    Patent number: 3995494
    Abstract: An automatic sampling device for atmospheric probes to check the propagation of noxious airborne substances. A pump feeds a distributor having a bore therethrough which is pivotably mounted in a circular housing having a plurality of necks extending radially outwardly for the attachment of plastic bags to catch samples of air delivered thereto by the distributor.
    Type: Grant
    Filed: November 28, 1975
    Date of Patent: December 7, 1976
    Assignee: European Atomic Energy Community (Euratom)
    Inventors: Karl H. Muller, Andre E. Sieffert