B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 41/04 (2006.01)
Patent
CA 2115347
A screw cap for sealing a bottleneck or the like with a substantially cylindrical securing section (1) with a female thread (2) which can be screwed on a male thread (7) of a bottleneck (8). The base of the screw cap forms a sealing section (3). In addition, there is a stop to define the posi- tion at which an edge of the bottleneck bears on the securing section. This stop is on the inner wall of the cylindrical securing section and preferably forms a bearing surface (6) in a plane perpendicular to the screw axis. As the bearing surface is on the outside of the bottleneck, the face of the bot- tleneck is free for the abutment of the sealing section or a seal. The stop se- curely establishes a given screw-on distance even when the cap is detached and refitted several times with differing torques and thus ensures that the force with which the sealing section or seal bears on the face of the bottleneck is precisely defined. This also precisely defines the pressure which, when exceeded, results in an increased internal pressure escaping from the bottle.
Dennison Associates
Hertrampf Michael
LandOfFree
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