Patents by Inventor Gunter Waldenmeier

Gunter Waldenmeier 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: 4643311
    Abstract: Stackable long-term storage container especially for radioactive waste comprises especially convoluted lid and bottom pieces to facilitate stacking. The lid is convoluted providing an annular projection which serves to allow grabbing of the lid and, together therewith, the drum. The floor has a rim which extends axially away from the floor and then is bent over upward toward the drum with drainage openings provided at the bottom edge. A resilient jacket is disposed around the bottom edge and surrounds the rim to prevent direct contact between the drums and scratching during stacking. A fiberglass reinforced plastic insert inside the drum protects the inner wall from damage. The special shape of the drum prevents causes for corrosion under all operating conditions of the drum, especially during very rough handling of the drum during filling, transport and storage.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: February 17, 1987
    Assignee: Kernforschungszentrum Karlsruhe GmbH
    Inventors: Gunter Hohlein, Wilhelm Hempelmann, Gunter Waldenmeier, Rainer Koster, Fritz Meyer, Ulrich Pfeifer
  • Patent number: 4580694
    Abstract: A seal structure for a double-lid system with an upper lid (chamber lid) for closing the opening of a first container (chamber) and a lower lid (drum lid) for closing the opening of a second container (drum), whereby the chamber lid is provided with a surrounding seal (chamber lid seal) and the corresponding opening of the drum is also provided with a circumferential seal (drum seal), the sealing mechanism being operable in such a way that the chamber lid seal and the drum seal fully retain their sealing capability with respect to both the chamber flange and the rim of the drum lid during all operations. To this end it is suggested that at least one of the two seals, preferably the drum seal, be provided with a closed annular cavity providing an air cushion at its radially inner end.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: April 8, 1986
    Assignee: Kernforschungszentrum Karlsruhe GmbH
    Inventors: Wilhelm Hempelmann, Gunter Waldenmeier
  • Patent number: 4055274
    Abstract: A dual lid assembly for closing first and second coupled openings, has entirely separable first and second lids for closing fluid-tight the first and the second opening, respectively. The dual lid assembly further includes a lid connecting device for coupling fluid-tight the two lids to one another; a first actuating device coupled to the lid connecting device for operating the latter by an externally-applied force; a lid locking device for tightening the first lid to a wall defining the first opening; a second actuating device coupled to the lid locking device for operating the latter by an externally-applied force. The second actuating device includes an actuating element connected to the lid locking device and displaceable parallel to the axis of the first lid. There is further provided a bearing unit attached to the first lid in the center thereof; an actuator pin attached to a mid portion of the actuating element and slidably supported in the bearing unit.
    Type: Grant
    Filed: August 17, 1976
    Date of Patent: October 25, 1977
    Assignee: Gesellschaft fur Kernforschung m.b.H.
    Inventors: Gunter Waldenmeier, Wilhelm Hempelmann