Patents Assigned to Schock & Co.
  • Sectional construction strip, e.g. for the production of window frames
    Patent number: 4281492
    Abstract: The strip comprises a tubular section of thermoplastic material, e.g. PVC, and a fill comprising a matrix of methylmethacrylate with silicate spherules as a filler, reinforced by glass filaments under tension. In production, cold methylmethacrylate is pressed in the extruded section while it is still hot.
    Type: Grant
    Filed: June 19, 1979
    Date of Patent: August 4, 1981
    Assignee: Schock & Co.
    Inventors: Karl Schock, Lothar Frank