Resting On Supporting Receiver, E.g., Portable Patents (Class 210/473)
At upper edge of filtrate receiver (Class 210/474)
Resting on internal stop or surface (Class 210/477)
At lower end or prefilt receiver (Class 210/482)
  • Tensioning means for sifter
    Patent number: 4096058
    Abstract: A sifter comprising an upper part and a lower part which are engaged one into the other, the lower part fixedly carrying the gauze of the sifter, characterized in that the lower part is in one piece, being formed by a central portion having a U-shaped cross-section and receiving the edge of the gauze, said central portion being terminated by two cylindrical or conical portions. The lower end of the upper part, bears against the gauze to hold it in a tensioned condition.
    Type: Grant
    Filed: January 16, 1976
    Date of Patent: June 20, 1978
    Inventor: Bernard Francois Borie