A DEVICE FOR CLOSING, WITH A SECURITY SEAL, A CONTAINER OF A RIGID MATERIAL, SUCH AS GLASS, BY MEANS OF A SCREW CAP OF RIGID THERMOPLASTICS MATERIAL

摘要

the end wall (1) of a threaded lid (a) consists of a rigid thermoplastic material sealing ring (3) thermopolymu00e9risu00e9 plastisol and the cylindrical skirt (2) of the cap is internally threaded at its upper end (a band du00e9chirab (5) through the opening.and a lower part (7) with an annular rib (8), internal fixation with an annular engaging rib (13) is located in the triangular cross section, the net (12) of the threaded neck of a container (b) rigid.the annular rib (8) of the cover (a) is interrupted in a plurality of areas (9) and the collar (b) includes a plurality of projections on the container (16) therefor, which extend downwards from the base of the triangular rib (13), and when it is completed the first live a lid (a).each positioned in one of the zones (19) of the broken rib (8) of the cover (a) so as to prevent the accidental unscrewing of a small screw, as well as its too high, thus ensuring the tightness of the closure in both cases.