Patents by Inventor Egbert J. van der Weide

Egbert J. van der Weide 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: 4641826
    Abstract: A machine is disclosed for lifting flexible flat workpieces such as fabric from a support surface. The machine includes a needle holder onto which a circular needle is mounted. The leading edge of the needle holder initially extends through a slit in the housing to push down on the workpiece when the machine is first placed thereon to prevent folds from occurring in the slit. Thereafter, the needle holder is rotated so that the circular needle perforates the top workpiece whereby the machine can be raised to lift the workpiece and move it to a desired location. When the needle holder returns to its rest position the needle is pulled out of the workpiece allowing it to fall from the grasp of the machine.
    Type: Grant
    Filed: June 14, 1985
    Date of Patent: February 10, 1987
    Assignee: Beisler GmbH
    Inventor: Egbert J. van der Weide