Patents by Inventor John B. Wheeldon

John B. Wheeldon 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: 4505383
    Abstract: In order to protect the longitudinal edges of a link belt against damage or undue wear it is proposed to provide an edge guard comprising a multiplicity of guard elements engaged with the coils of the belt, the elements each comprising a body part for disposition adjacent the edge of the belt and a mounting element for engagement with a respective coil. The body part is preferably flexible, and the body parts of adjacent elements may partially overlie one another in providing a reinforcing wear resistant edge to the belt for protecting the ends of the coils.
    Type: Grant
    Filed: December 8, 1981
    Date of Patent: March 19, 1985
    Assignee: Scapa-Porritt Limited
    Inventors: John B. Wheeldon, John Jeffery, Paul F. Myerscough
  • Patent number: 4502595
    Abstract: A link conveyor is proposed which includes a first set of helical coils or spirals connected together in interdigitated parallel disposition to define a base structure providing adequate strength and dimensional stability in the conveyor and a second set of interdigitated helical coils or spirals connected together and to the base structure and forming a supplementary structure for protecting the said base structure against damage or undue wear. The base and supplementary structures may be arranged to form a single layer conveyor or may comprise two separate plies connected together by support coils to define a Duplex structure. The conveyor is of particular application to papermachine clothing suitable for dryer fabrics, forming fabrics and base structures for press felts.
    Type: Grant
    Filed: January 20, 1983
    Date of Patent: March 5, 1985
    Assignee: Scapa-Porritt Limited
    Inventor: John B. Wheeldon