Patents by Inventor Artur Buchalla

Artur Buchalla 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).

  • Safety rotary transmission with face seal
    Patent number: 4786061
    Abstract: Safety rotary transmissions allow the transfer of fluid media from a stationary casing into the inside of a rotating shaft and back. The apparatus, which has only one face seal, is provided with a blocking device which prevents a contact of metallic parts of the face seal with one another even if there is severe wear of the sliding sealing ring. An exchange of the sealing ring is possible without dismantling the casing.
    Type: Grant
    Filed: June 9, 1987
    Date of Patent: November 22, 1988
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Artur Buchalla
  • Sealing device
    Patent number: 4019788
    Abstract: The invention provides an improved end-face sealing device between rotating pairs of rolls and stationary chambers of an apparatus by means of sealing elements fitted in the end-faces of the rolls and sealing plates fitted in the side walls of the chambers in such a manner that they are pressed on the said sealing elements, the sealing elements being adjustably mounted on stationary parts of said apparatus without use of bearing elements. The device is especially suitable for sealing off against solids containing liquids to be squeezed off.
    Type: Grant
    Filed: April 21, 1975
    Date of Patent: April 26, 1977
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Artur Buchalla