Patents by Inventor Willi Graf

Willi Graf 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: 7112750
    Abstract: A weighing module with a housing surrounding a weighing cell on all sides has a vertically movable force transfer member designed to be connected to a load-receiving device. The force transfer member extends through a passage opening of a housing wall and is rigidly connected to a vertically movable part of the weighing cell. The weighing module includes a dust-removing device which further includes a means for generating a gas flow directed away from the movable part of the scale for the purpose of preventing an accumulation of dust between the stationary housing and the vertically movable force transfer member.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: September 26, 2006
    Assignee: Mettler-Toledo GmbH
    Inventors: Jean-Christophe Emery, Willi Graf
  • Patent number: 6923449
    Abstract: A baffle seal at the opening (31) for the load-transmitting member (20) in a balance housing (30) has at least one sleeve-shaped ring element (11, 110), fastener means (23) attached to the housing (30) and serving to hold the sleeve-shaped ring element in a stationary working position surrounding the opening, and a cover cap (1) with at least one sleeve-shaped ring (10, 10?, 12) that is axially movable relative to the sleeve-shaped ring element. The ring element is releasable so that it can be separated from the balance without dismantling other parts.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: August 2, 2005
    Assignee: Mettler-Toledo GmbH
    Inventors: Hans-Rudolf Burkhard, Luzi Hess, Willi Graf
  • Publication number: 20030067119
    Abstract: A baffle seal at the opening (31) for the load-transmitting member (20) in a balance housing (30) has at least one sleeve-shaped ring element (11, 110), fastener means (23) attached to the housing (30) and serving to hold the sleeve-shaped ring element in a stationary working position surrounding the opening, and a cover cap (1) with at least one sleeve-shaped ring (10, 10′, 12) that is axially movable relative to the sleeve-shaped ring element. The ring element is releasable so that it can be separated from the balance without dismantling other parts.
    Type: Application
    Filed: October 9, 2002
    Publication date: April 10, 2003
    Applicant: Mettler-Toledo GmbH
    Inventors: Hans-Rudolf Burkhard, Luzi Hess, Willi Graf