Patents Assigned to H.R. Smith (Technical Developments, Ltd.)
  • Patent number: 5057175
    Abstract: A method and apparatus for making continuous lengths of thermoplastics material fibers reinforced laminates by arranging layers of fibers reinforcement impregnated with a thermoplastics material in alignment with and between outer sheets of another material to form a stack and passing the stack through a tool having two opposing platens, one of which is movable relative to the other, and operating the tool so as to compress the stack and form a laminate. The stack is passed from entry to exit of the tool in steps, the extent of each of which is substantially less than the length of the tool such that each area of the stack is subjected to repeated compressions by the tool is passing therethrough. A recess is formed in one platen, which is adapted to receive a land formed on the other platen.
    Type: Grant
    Filed: May 16, 1989
    Date of Patent: October 15, 1991
    Assignee: H.R. Smith (Technical Developments, Ltd.)
    Inventor: John W. Ashton