Patents by Inventor Hans Dieter Filip

Hans Dieter Filip 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).

  • Sieve box screen and pan cleaner
    Patent number: 6095339
    Abstract: A sieve box for a particulate sifter has a pan, a screen, and a number of screen and pan clearing devices. Each device has a first member with fingers engageable with the pan to remove particulates that accumulate on the pan and a second member with fingers adapted to engage the screen to clean the screen or particulates. The first and second members have cooperating structures that movably connect the structures to allow free combined lateral movement in the sieve box and independent relative rotational, vertical and wobble movements.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: August 1, 2000
    Assignee: Filip GmbH
    Inventor: Hans Dieter Filip
  • Sieve box screen and pan cleaner
    Patent number: D425920
    Type: Grant
    Filed: June 3, 1999
    Date of Patent: May 30, 2000
    Assignee: Filip GmbH
    Inventor: Hans Dieter Filip