Patents by Inventor Dieter Pinnow

Dieter Pinnow 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: 7448317
    Abstract: A method of operating a filter press for solid-liquid separation of a product, the filter press comprising a press jacket with an end, and a ram in the press jacket and movable relative to the end to define a pressing space. The method comprising loading a product to be pressed in the pressing space; positioning the ram in a start position so that the product only partially fills the pressing space; advancing the ram, during a first phase of a forward movement, from the start position to a full contact position where the volume of the pressing space becomes equal to a volume of the product; and advancing the ram toward the end from the full contact position during a second phase of the forward movement, the ram exerting no pressure on the product during the first phase but exerting pressure on the product during the second phase to press liquid phase out of the product. At the full contact position, the ram is advanced at a forward velocity lower than an average forward velocity over the first phase.
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: November 11, 2008
    Assignee: Bucher Guyer AG
    Inventor: Dieter Pinnow
  • Publication number: 20070227371
    Abstract: A method of operating a filter press for solid-liquid separation of a product, the filter press comprising a press jacket with an end, and a ram in the press jacket and movable relative to the end to define a pressing space. The method comprising loading a product to be pressed in the pressing space; positioning the ram in a start position so that the product only partially fills the pressing space; advancing the ram, during a first phase of a forward movement, from the start position to a full contact position where the volume of the pressing space becomes equal to a volume of the product; and advancing the ram toward the end from the full contact position during a second phase of the forward movement, the ram exerting no pressure on the product during the first phase but exerting pressure on the product during the second phase to press liquid phase out of the product. At the full contact position, the ram is advanced at a forward velocity lower than an average forward velocity over the first phase.
    Type: Application
    Filed: April 8, 2005
    Publication date: October 4, 2007
    Applicant: Bucher Guyer AG
    Inventor: Dieter Pinnow
  • Patent number: 5582100
    Abstract: Apparatus is provided to reduce filter abrasion in fruit juice presses of the type where juice is removed through a boundary wall (1) from a compression chamber by way of channels in each of a plurality of drainage cores (4) covered by filter envelopes (29). Each filter envelope (29) is attached to its drainage core (4) outside the region (35) in which the drainage core (25) is mounted on the boundary wall (1) of the press. Also, the drainage core includes a bending zone formed so that only slight bending stresses occur. Consequently the service life of the apparatus is distinctly increased with respect to the known systems.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: December 10, 1996
    Assignee: Bucher-Guyer AG, Maschinenfabrik
    Inventor: Dieter Pinnow