Patents by Inventor Marinus L. G. van Kaam

Marinus L. G. van Kaam 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).

  • Branch pipe part
    Patent number: 4441744
    Abstract: A branch pipe part is provided with a collar and a downwardly extending skirt, the free end of the branch pipe part comprising a first outwardly extending projection and the lower portion of said pipe part being provided with longitudinal incisions allowing deformation of said lower portion.The outer wall of the space formed by collar and skirt may have apertures for passing a lip of a sealing member. In order to avoid further deformation of the lower portion with incisions after connection with a main conduit, a deformation-preventing bush is pushed into the lower portion and locked by means of a cam.For decreasing the distance between the outer side of a main conduit connected with the branch pipe part, the skirt may be provided with a removable adapting ring, an intermediate part thereof decreasing the distance between the outer side of the main conduit and the free lower end of the skirt.
    Type: Grant
    Filed: December 17, 1981
    Date of Patent: April 10, 1984
    Assignee: Wavin B.V.
    Inventors: Albertus A. Oostenbrink, Anno G. Negen, Marinus L. G. van Kaam