Assembly comprising an opening capsule and a receptacle with a tamperproof cover
AssigneeCebal
InventorBernard Schneider
Life of this patent
Estimating the term…
Abstract
The assembly of a closure (3) and a receptacle (1) having a neck (2) of plastic material surmounted by a tamperproof cover 98). The closure (3) comprises an opening capsule (3) provided with a base (4), and the base (4) and the neck (2) are configured for snap-on engagement after the commencement of insertion in full cross-section of a fitting device (25) onto the cover (8), and, lower down, a screwing device, these devices (15 and 25) allowing the cover (8) to be ruptured and to be fitted into the neck (2).
Claims12
An assembly comprising
- (a) an opening capsule, consisting of an opening part (5) and of a base (4), and a receptacle (1) having a neck (2) of plastic material surmounted by a tamperproof cover (8) which is connected to said neck (2) by a tearable zone (9);
- (b) said opening part carrying means (25) for axially force-fitting said cover (8) into said opening part;
- (c) said base (4) and said neck (2) having thereon complementary snap-on projections (28 and 15) so situated that, when said capsule (3) is pushed onto said neck (2), one of said complementary projections engages around the other of said complementary projections only after force-fitting of said cover by said axially force-fitting means (25) has attained maximum force;
- (d) said base and said neck comprising below said snap-on projections (28 and 15), complementary screw threading (32 and 18), whereby downward screwing of said capsule results in rupture of said cover (8) by shearing said tearable zone (9) and then pushing said cover (8) into said neck (2).
An assembly according to claim 25, wherein said opening part (5) has an open axial passage (24), and wherein said force-fitting means (25) are constituted by scoring fins (25) carried by said open axial passage (24) and having tapered edges of 0.1 to 0.3 mm thickness which are adapted to score a circular cylindrical portion (12) of said cover (8).
Dependencies are inferred from the claim text.