DEVICE FOR FASTENING CONTACT PLATES OF MASS-EXCHANGE APPARATUS Russian patent published in 1995 - IPC

FIELD: mass-exchange apparatus. SUBSTANCE: device has cylindrical housing with main lateral creasing wherein flexibly deformed sealing members are received. The members are made up as setting rings which interact with contact plates. The side edge of the rings abuts upon the housing. The bottom part of the side edge is flanged over the inner diameter of the ring and connected with it over the radius of cross-section of the part of the ring. When device is made, the first additional creasing can be made on the housing and the second additional creasing can be made on the side edge of the contact plate. The projection of the creasing enters hollow of the first creasing. Vertical slots are made in the side edge. EFFECT: enhanced reliability. 2 cl, 2 dwg