Patents by Inventor Eduard H. L. de Munck

Eduard H. L. de Munck 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).

  • Profiled gasket for sealing tunnel segment joints
    Patent number: 4199158
    Abstract: Profiled gasket for sealing tunnel segment joints, which is placed in a receiving groove in this segment and which is made of a body of rubber or an elastically deformable synthetic material, said body having at the one side two outer legs, within which there at least two inner legs, a slot being provided between each two legs, at least the upper part of the slot formed by each outer leg and its neighboring inner leg lying within the outer plane of the other side of the body.
    Type: Grant
    Filed: November 20, 1978
    Date of Patent: April 22, 1980
    Assignee: Vredestein N.V.
    Inventor: Eduard H. L. de Munck
  • Injection sealable waterstop and method of installing same
    Patent number: 4041665
    Abstract: A waterstop of elastic deformable rubbery material used in concrete structures with a substantially flat middle portion and enlarged side wing anchor sections with elastic or metal anchor strips and sponge material attached to the outer edge of the strips and injection tubes from outside the concrete to the sponge material. The method of installing a waterstop in concrete and after setting injecting a fluid curable or settable material to admit the fluid to the concrete matrix in the region of the sealing extensions.
    Type: Grant
    Filed: November 22, 1976
    Date of Patent: August 16, 1977
    Assignee: Vredestein N.V.
    Inventor: Eduard H. L. de Munck