Patents by Inventor Yves Zweifel

Yves Zweifel 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).

  • Device for measuring a mass flow rate of a particulate material
    Patent number: 7340967
    Abstract: A device for measuring a mass flow rate of a flow of particulate material which moves in a predetermined direction. The device includes a weighing cell, a first apparatus, a second apparatus, and a third apparatus. The weighing cell includes a tubular wall and is disposed to be passed through by a flow of particulate material. The first apparatus weighs the weighing cell and the quantity of particulate material contained in the weighing cell and produces a first signal. The second apparatus measures the speed of flow of the particulate material which flows through the weighing cell and produces a second signal. The third apparatus calculates the bulk density of the particulate material, calculates the mass flow rate of particulate material which flows through the weighing cell, and produces a third signal representing the mass flow rate of particulate material which flows through the weighing cell.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: March 11, 2008
    Assignee: Maillefer SA
    Inventor: Yves Zweifel
  • Device for measuring a mass flow rate of a particulate material
    Publication number: 20060169057
    Abstract: A device for measuring a mass flow rate of a flow of particulate material which moves in a predetermined direction. The device includes a weighing cell, a first apparatus, a second apparatus, and a third apparatus. The weighing cell includes a tubular wall and is disposed to be passed through by a flow of particulate material. The first apparatus weighs the weighing cell and the quantity of particulate material contained in the weighing cell and produces a first signal. The second apparatus measures the speed of flow of the particulate material which flows through the weighing cell and produces a second signal. The third apparatus calculates the bulk density of the particulate material, calculates the mass flow rate of particulate material which flows through the weighing cell, and produces a third signal representing the mass flow rate of particulate material which flows through the weighing cell.
    Type: Application
    Filed: January 19, 2006
    Publication date: August 3, 2006
    Applicant: MAILLEFER SA
    Inventor: Yves Zweifel