Patents by Inventor Ludwig Herzhauser

Ludwig Herzhauser 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: 5341553
    Abstract: An impeller puller to be utilized to remove flexible impellers of varying dimensions from a shaft within a liquid pump, the impeller puller including a linkage head having an axial bore, and a pair of clamp members oppositely and hingedly disposed along opposite sides of the linkage head, each of the clamp members including at least one adjustably and removably positionable gripping jaw thereon and being movable between a retracted and a clamping position such that upon the turning of the screw member disposed within said axial bore of said linkage head, the screw will contact the shaft within the liquid pump and the linkage head will move away from the shaft pulling the impeller therewith from the shaft.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: August 30, 1994
    Inventor: Ludwig Herzhauser
  • Patent number: 5030150
    Abstract: An assembly for the collection and channeling of water leaking beyond a stuffing box or other seal assembly which is normally provided to isolate a rotating propeller shaft in a marine craft from the water in which the craft rides. A receiving chamber is disposed at an inner most end of the sealing assembly or stuffing box in receiving relation to leaking water passing along the shaft wherein the receiving chamber communicates with a liquid exit or collection facility for the removal of the water from the shaft before the water can enter into the interior of the craft.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: July 9, 1991
    Inventor: Ludwig Herzhauser