Patents by Inventor Derk Abel Smook

Derk Abel Smook 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: 7000779
    Abstract: Device for separating fine fractions and coarse fractions from bulk goods, comprising a frame and a screen plane supported by it for supporting the coarse fraction and allowing the fine fraction to pass through, the screen plane being formed by a number of screen disks, that have been arranged in groups and detachably on rotating driven shafts, the shafts on both sides being bearing mounted with bearing ends in first and second bearings on the frame and at at least one end being in driven engagement with driving means, the bearing ends being divided into a shaft member permanent to the shaft and a bearing member bearing mounted in the first and second bearings on the frame, which bearing member inter-engages with the permanent shaft member for co-rotation therewith, wherein in both bearing ends the permanent shaft member and the bearing member can be coupled to each other and can be uncoupled from each other by a movement of the shaft transverse to the main direction of the shaft.
    Type: Grant
    Filed: March 26, 2003
    Date of Patent: February 21, 2006
    Assignee: Bollegraaf Beheer Appingedam B.V.
    Inventor: Derk Abel Smook
  • Publication number: 20030183561
    Abstract: Device for separating fine fractions and coarse fractions from bulk goods, comprising a frame and a screen plane supported by it for supporting the coarse fraction and allowing the fine fraction to pass through, the screen plane being formed by a number of screen disks, that have been arranged in groups and detachably on rotating driven shafts, the shafts on both sides being bearing mounted with bearing ends in first and second bearings on the frame and at at least one end being in driven engagement with driving means, the bearing ends being divided into a shaft member permanent to the shaft and a bearing member bearing mounted in the first and second bearings on the frame, which bearing member inter-engages with the permanent shaft member for co-rotation therewith, wherein in both bearing ends the permanent shaft member and the bearing member can be coupled to each other and can be uncoupled from each other by a movement of the shaft transverse to the main direction of the shaft.
    Type: Application
    Filed: March 26, 2003
    Publication date: October 2, 2003
    Applicant: BOLLEGRAAF BEHEER APPINGEDAM B.V.
    Inventor: Derk Abel Smook