Patents by Inventor Pieter A. Polderman

Pieter A. Polderman 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).

  • Push belt, ring element and method and device for electrochemical machining thereof
    Patent number: 7056429
    Abstract: Method for deburring and/or rounding a side face of a thin-sheet and annular metal element (1), such as a ring element (1) for use in a push belt for continuously variable transmission, wherein the ring element (1), in a machining step, is received in a device for electrochemical machining (“ECM”) of the ring element (1), an electrode (5) being positioned in the device opposite an axially oriented side face (3) of the ring element (1), which electrode (5), as seen in a thickness or radial direction of the ring element (1), has a dimension which is at least twice as great as a dimension of the ring element (1) in the said thickness direction.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: June 6, 2006
    Assignee: Van Doorne's Transmissie B.V.
    Inventors: Cornelis Hendricus Maria Van Oirschot, Jozias Pieter Polderman
  • Push belt, ring element and method and device for electrochemical machining thereof
    Publication number: 20030226765
    Abstract: Method for deburring and/or rounding a side face of a thin-sheet and annular metal element (1), such as a ring element (1) for use in a push belt for continuously variable transmission, wherein the ring element (1), in a machining step, is received in a device for electrochemical machining (“ECM”) of the ring element (1), an electrode (5) being positioned in the device opposite an axially oriented side face (3) of the ring element (1), which electrode (5), as seen in a thickness or radial direction of the ring element (1), has a dimension which is at least twice as great as a dimension of the ring element (1) in the said thickness direction.
    Type: Application
    Filed: June 9, 2003
    Publication date: December 11, 2003
    Applicant: VAN DOORNE'S TRANSMISSIE B.V.
    Inventors: Cornelis Hendricus Maria Van Oirschot, Jozias Pieter Polderman
  • Device for handling containers
    Patent number: 4291733
    Abstract: A device for handling containers, more particularly a machine for filling bottles. This device comprises a common polygonal path for the bottle conveyor and for a plurality of movable active members travelling above said polygonal path, the said members being coupled to an endless drawing member travelling through a path lying parallel to and above the said polygonal path.
    Type: Grant
    Filed: June 11, 1979
    Date of Patent: September 29, 1981
    Assignee: Stork Repak B.V.
    Inventor: Pieter A. Polderman