HEATED VACUUM RING Russian patent published in 2021 - IPC B32B17/06 B32B37/10 C03C27/12 

FIELD: vacuuming.

SUBSTANCE: invention relates to a vacuum ring (1) for vacuuming a set of layers (2) stacked in a certain sequence. The vacuum ring at least has a vacuum-resistant flexible hose (3), which can be connected to a vacuum pump (8) in the form of a closed ring. The vacuum pump has an opening (4) into the inner space (I) of the ring, so that the ring can hold the outer side edge (5) of the set (2) of layers stacked in a certain sequence to form an air outlet channel (6) along the side edge (5), and the vacuum ring (1) has at least two electric heating elements (7), of which at least one is located above the opening (4) and at least one is located below the opening (4).

EFFECT: invention is effective in terms of vacuuming.

14 cl, 24 dwg