Patents Assigned to Kombinat Budowlany Bytom Zaklad Doswiadczalny "Pras-Bet"
  • Vacuum suspension for hoisting plates
    Patent number: 4155583
    Abstract: A vacuum suspension for handling large size plates, especially concrete building parts that are still of low strength and brittle. The suspension is a stiff case forming the carrying structure frame having the vacuum pumps on its top. The inside of the case is divided by a baffle into a work vacuum chamber and decompression chamber. The latter is separated by a holed plate from a foam rubber sheet, having suction cups shaped therein. The holed plate of the suspension has self controlled fluidic disk valves of low inertia.
    Type: Grant
    Filed: October 13, 1977
    Date of Patent: May 22, 1979
    Assignee: Kombinat Budowlany Bytom Zaklad Doswiadczalny "Pras-Bet"
    Inventors: Jan Mikos, Jan Kowal, Albin Loska