Patents by Inventor Egbert Lenters

Egbert Lenters 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).

  • Apparatus for the in-line cropping and/or chamfering of a plastic tube
    Patent number: 5217724
    Abstract: An apparatus for in-line cropping and/or chamfering of a plastic tube. The apparatus includes pressure rollers for deforming a tube section and cutting devices to perform the cropping and/or chamfering operation. The control of movement of the pressure rollers and cutting devices is carried out by a combination of a face cam and a rotor disc; the face cam and rotor disc have the same diameter and may be given rotary speeds which are related to each other in any desired way. Control is carried out preferably by use of an interference box.
    Type: Grant
    Filed: March 13, 1992
    Date of Patent: June 8, 1993
    Assignee: Wavin B.V.
    Inventor: Egbert Lenters