Patents by Inventor Wilfried Bubenzer

Wilfried Bubenzer 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: 4451325
    Abstract: A sealing device for forming seams in heat-sealable packaging materials is disclosed having an electrical resistor heating element for generating heat. In order to transmit heat to a sealing surface of the sealing device in such a way that uniform temperature distribution is attained on this surface, a sheath of a highly heat-conductive metal, such as aluminum, is provided between the heating element and the sealing device. The sheath is fitted tightly into the sealing device.
    Type: Grant
    Filed: May 13, 1982
    Date of Patent: May 29, 1984
    Assignee: Robert Bosch GmbH
    Inventor: Wilfried Bubenzer