Patent ID: 6044995
Filing Date: 2000-04-04
Classification: B65D

Abstract:
A negative-pressure-resistible leakage-proof bottle cover, comprising:a cover body, a leakage-proofgasket disposed on an inner top face in said cover body, said leakage-proof gasket having a circular main body with an outer diameter corresponding to an inner diameter of the top face of said cover body, said circular main body having a circumferential edge turned downward and extended to form a positioning circumferential edge, said positioning circumferential edge having an inner face at an inner side and a sloped face at an outer side, said leakage-proof gasket having a bottom face extended downward to form an infiltration resister, said infiltration resister having an open end extended in an outward and upward direction to form an infiltration-resisting ring; andan anti-tampering ring disposed circumferentially around an open end of said cover body and having a plurality of oblique protruded stopping pieces arranged at an inner edge thereof, a plurality of cutting lines disposed between said anti-tampering ring and said cover body, each of said seamless cutting lines having a bridge point, a consecutive wall being extended from an inner edge of said anti-tampering ring between each two adjacent protruded stopping pieces, said consecutive wall being pinched by and connected to adjacent protruded stopping pieces in a side by side manner to form a serial connection at the roots of said protruded stopping pieces.