B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
206/23, 206/26,
B65D 41/04 (2006.01) B65D 50/04 (2006.01)
Patent
CA 1117900
ABSTRACT This invention relates to closures for containers, and more particularly to "safety" closures having a locking feature so that when sealingly engaged on a container, the cap is locked thereon and can be removed only by special manipulation. A significant problem encountered with prior art safety closures is that when employing a multiplicity of projections, or lugs, as the locking means it has been found that they can often be easily sheared , thus neutralizing the effectiveness of the safety locking feature. Also, in some prior art designs, it is necessary that the projection and the closure be formed from a resilient material to permit the closure to be urged into and out of its locked position. Such de- signs are unsuitable for use with metal, glass, rigid plastic, or the like. In the closure of the present invention, at least three enlarged members are equiangularly spaced about the closure thread and form locking shoulders adapted to interengage corresponding shoulders defined on the thread of the container to lock the threads together and prevent removal of the closure except by special manipu- lation. A resilient liner is compressed when the closure is drawn down on the container and the compressed resilient liner urges the cap upwardly and maintains the shoulders in locked engagement.
314761
Cooke Carl W.
Gowling Lafleur Henderson Llp
LandOfFree
Safety closure cap does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Safety closure cap, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Safety closure cap will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-748183