Patents by Inventor Winfried Hellmig

Winfried Hellmig 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: 6254948
    Abstract: A tubular body made of elastomeric material and/or plastics, in particular the bellows of a pneumatic cushioning system, consists of a outer layer, an inner layer, and an embedded reinforcement layer, shaped in particular as axial reinforcing threads. The tubular body is provided with an embedded slit protection and is in particular characterized by the following layers, from the outermost inwards: outer layer, adhesive layer, reinforcement, adhesive layer, slit protection, adhesive layer, and innermost layer.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: July 3, 2001
    Assignee: Phoenix Aktiengesellschaft
    Inventor: Winfried Hellmig
  • Patent number: 6009911
    Abstract: The invention concerns a safety hose made of elastomer material and/or plastics, in particular for conveying environmentally-harmful substances and comprising: an inner layer; an outer layer; and an embedded rigid carrier in turn comprising two rigid carrier systems, each of which comprises one or a plurality of layers. Disposed between the two rigid carrier systems is at least one separating intermediate layer, the rigid carrier system facing the inner layer having a low extensibility and high chemical resistance to the substance to be conveyed, whilst the rigid carrier system facing the outer layer has a high extensibility. As a possible variant, an adhesion system can be provided between the rigid carrier system and the outer layer. The adhesion system comprises a radial, helical or axial two-zone system, the one zone having a lesser adhesion effect than the other zone.
    Type: Grant
    Filed: February 6, 1998
    Date of Patent: January 4, 2000
    Assignee: Phoenix Aktiengesellschaft
    Inventors: Hans-Werner Friederich, Winfried Hellmig, Uwe Maass, Peter Zerfowski
  • Patent number: 5722794
    Abstract: A float (1) for floating flexible pipes has a multilayered foam body (3) that surrounds the floating flexible pipe (2), a textile cover (4) arranged on the foam body (3) and having in particular several transverse layers, and an outer covering (5) made of an elastomer, a thermoplastic elastomer or a thermoplastic material. The float (1) is further provided with a transverse textile reinforcement (6) that forms with the axis an angle from 75.degree. to 90.degree., in particular from 85.degree. to 90.degree..
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: March 3, 1998
    Assignee: Phoenix Aktiengesellschaft
    Inventors: Hans-Werner Friederich, Winfried Hellmig, Uwe Maass