Patents by Inventor Michel J. Laval

Michel J. Laval 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: 4776912
    Abstract: A machine incorporating presser cylinders for continuously making printed patterns or designs, in intaglio or in relief, on webs of supple material lined with synthetic foam. It comprises a die cylinder (1) mounted on fixed bearings (2) and driven at variable speed by a motor (3), a presser cylinder driven by a motor (8) mounted on bearings (5) fixed on articulated arms (6), moved by jacks (7). The webs of foam (9) and of fabric (11) are conducted towards the cylinders respectively by devices (10 and 12). A heating element (13) is disposed upstream of the cylinders. Rotary (14) and linear (15) sensors modulate the force of approach of the cylinders as a function of the rotation of the die cylinder. The different operational parameters are controlled by a process control (16).
    Type: Grant
    Filed: November 3, 1982
    Date of Patent: October 11, 1988
    Assignee: Productions Textiles et Plastiques de la Marne S.A.
    Inventor: Michel J. Laval