Patents by Inventor Gerardus L. C. Hufken

Gerardus L. C. Hufken 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).

  • Vacuum cup
    Patent number: 6213528
    Abstract: The invention relates to a vacuum cup (1) that is able to ensure a very silent release of an object that is being held by the vacuum cup (1). The vacuum cup (1) comprises a channel (7) that allows a fast passage of ambient air into a vacuum chamber (3) to bring the vacuum chamber (3) to atmospheric pressure. Preferably, the channel (7) comprises openings (9, 9′, 13) that have surface area's being large compared to the surface area of a top (10) of the vacuum chamber (3) in order to obtain a fast release.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: April 10, 2001
    Assignee: U.S. Philips Corporation
    Inventors: Gerardus L. C. Hufken, Johannes A. P. W. Segers, Jan A. Bijloo