Patents by Inventor Hendrik Den Uyl

Hendrik Den Uyl 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: 5662952
    Abstract: Injection mold comprising at least two mold sections (2, 3) between which a mold cavity is delimited. One (3) of the mold sections is provided with an ejector (42) for removing the product after injection molding. The other mold section (2) is provided with a gate (5). To enable the solidified sprue to be separated from the molded article, a bush (8) is also present in which the gate (6) likewise extends. This bush (8) is constructed to be movable to a limited extent relative to the mold section (2) in which the other part (5) of the gate is made. As a result the sprue can be pulled away from the article in a guaranteed manner. The movement of the bush (8) is controlled by a jack (16, 17). Consequently, controlled breaking of the sprue is possible and the advantage arises that, by releasing the pressure on the jack (16, 17), no force has to be overcome when the mold is closed.
    Type: Grant
    Filed: September 14, 1995
    Date of Patent: September 2, 1997
    Assignee: TPP Axxicon B.V.
    Inventors: Hendrik Den Uyl, Johannes Teijgeler