Patents by Inventor Hans-Joachim Weist

Hans-Joachim Weist 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).

  • Worm conveyor for bulk material
    Patent number: 5615987
    Abstract: Worm conveyor for bulk material, the outlet of which is separated from an outlet chamber, in which a higher gas pressure obtains than at the inlet of the worm conveyor, by a non-return flap, which is pressed by a flexible force into the closed setting. The operating behaviour of the conveyor is improved, in particular drive power and wear are reduced, in that a damper is provided for damping the movement of the non-return flap, in particular for damping the opening movement.
    Type: Grant
    Filed: October 5, 1994
    Date of Patent: April 1, 1997
    Assignee: Claudius Peters Aktiengesellschaft
    Inventor: Hans-Joachim Weist