Patents by Inventor Franz Plochberger

Franz Plochberger 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: 4613035
    Abstract: Apparatus for removing bulk material from a dump comprises a horizontal scooping tube, which is mounted for rotation about its axis and provided with a plurality of buckets, which are distributed around the periphery and over the length of the scooping tube and protrude into the interior of the scooping tube through entrance openings formed in the wall of the scooping tube, and a conveyor, which extends within the scooping tube and serves to receive bulk material which has been dropped through the entrance openings by the buckets. In order to provide good conditions for the removal of material and to provide a simplified structure, the buckets are secured to annular collars, which are disposed at the entrance openings in the tube wall and radially outwardly protrude from the tube wall, and the buckets protrude at least with their backs through the collars into the interior of the scooping tube.
    Type: Grant
    Filed: July 9, 1985
    Date of Patent: September 23, 1986
    Assignee: Voest-Alpine Aktiengesellschaft
    Inventors: Klaus Eisenkolb, Franz Plochberger, Johann Puhringer