Patents by Inventor Johann Stadler

Johann Stadler 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 closing the charging opening for pressure resistant containers
    Patent number: 4747741
    Abstract: The device for closing the charging opening of an autoclave (1) has a cover (2) which can be lowered into the interior of the autoclave by means of a drive means supported at the outer side of the autoclave (1). The charging opening overlaps with its annular rim (7) the sealing surface (17) of the cover (2).
    Type: Grant
    Filed: December 20, 1982
    Date of Patent: May 31, 1988
    Assignee: Voest-Alpine Aktiengesellschaft
    Inventor: Johann Stadler
  • Closure device for the discharge opening of an autoclave
    Patent number: 4607767
    Abstract: In an autoclave (1) which can be charged with bulk material and has at its bottom a discharge opening (2) to be closed by means of a cover (4), the cover (4) can be opened inward. For preventing that the bulk material obstructs the opening movement of the cover (4), a closure device (13) is provided to shut off the cross-section of the autoclave, said closure device being opened only after the cover (4) closing the discharge opening (2) has started its opening movement. The preceding closure device (13) comprises downwardly swivellable plates (12).
    Type: Grant
    Filed: March 15, 1984
    Date of Patent: August 26, 1986
    Assignee: Voest-Alpine Aktiengesellschaft
    Inventors: Johann Stadler, Hildegard Schwarz