Patents by Inventor Roger Van Nechel

Roger Van Nechel 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).

  • Flat roofing laminate having means to arrest transmission of deformations from the bottom surface to the top surface
    Patent number: 3996401
    Abstract: This invention relates to a flat roofing.The flat roofing comprises: a lower support able to be submitted in use to deformations, an upper sealant covering, a disengagement sheet made of an elastic flexible and deformable material and arranged between said lower support and said sealant covering, lower adhesion zones connecting said disengagement sheet with the lower adjacent element of the roofing, in particular with said lower support, said lower adhesion zones being able to undergo horizontal relative displacements dependant on the deformations of said lower support, upper adhesion zones connecting said disengagement sheet with the upper adjacent element of the roofing, in particular with said upper sealant covering, and alternating with respect to said lower adhesion zones, and means for maintaining horizontally immobile said upper adhesion zones to one another.In said flat roofing the deformations of said under support have no effect on the said upper sealant covering.
    Type: Grant
    Filed: February 28, 1975
    Date of Patent: December 7, 1976
    Assignee: Compagnie Generale des Asphaltes-Asphaltoc-S.A.
    Inventor: Roger Van Nechel