Patents by Inventor Friedrich C. Math

Friedrich C. Math 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: 4376669
    Abstract: A method of fabricating an energy absorbing structure for a vehicle comprises the steps of (a) winding a continuous resin wetted filament around a number of attachment points at the opposite ends of a jig to form an array of parallel strands, (b) displacing and tensioning the strands by means of first cross bars substantially at right angles to the strands, (c) winding a second array of parallel strands between the attachment points over said first cross bars, (d) displacing said second array onto said first array by means of second cross bars lying parallel and in between the first cross bars, (e) laying a third array of strands over said first and second cross bars and between said attachment points, and (f) curing the structure. The structure may then be fixed to the interior of a vehicle door panel.
    Type: Grant
    Filed: August 12, 1981
    Date of Patent: March 15, 1983
    Assignee: The British Petroleum Company Limited
    Inventor: Friedrich C. Math
  • Patent number: 4343124
    Abstract: A cured structural building element formed by winding and curing resin saturated glass fibre on a former. The element takes the form of a rod or beam having pairs of projections pointing towards each other at an angle to the rod or beam. The heads of the projections are arranged to lock together upon bending of the rod or beam to form a curved rigid element.
    Type: Grant
    Filed: April 25, 1980
    Date of Patent: August 10, 1982
    Assignee: The British Petroleum Company Limited
    Inventor: Friedrich C. Math