Patents by Inventor Herbertus van der Velde

Herbertus van der Velde 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).

  • Method for coupling two tubes, preferably plastic tubes, with each other
    Patent number: 3986738
    Abstract: A method for coupling tubes. One tube has a female coupler member at one end and the other tube has a male coupler member that is inserted into the female coupler member so that the outer surfaces join along a regular path. Then wire is wrapped around the joined couplers.
    Type: Grant
    Filed: December 17, 1974
    Date of Patent: October 19, 1976
    Inventor: Herbertus van der Velde