B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
206/25
B65D 55/02 (2006.01) B65D 41/04 (2006.01) B65D 50/04 (2006.01)
Patent
CA 1150190
Abstract A child-resistant safety closure for preventing access to the contents of a container by small children and infants includes a positive-on closure concept and necessitates a two-step release procedure in order to remove the cap from the container spout. The closure cap includes a double wall construction wherein the outer wall has a pair of inwardly protruding locking lugs and the inner wall is internally threaded for receipt by an externally threaded container spout. Disposed in combination with the container spout is a sawtooth detent member including two series of ratchet teeth which are spaced approximately 180 degrees apart. These ratchet teeth are suitbly sized and arranged for interlocking engagement with the inwardly protruding locking lugs. However, one series of ratchet teeth are offset from the other series by a half ratchet tooth spacing so that the engagement of the locking lugs with the ratchet teeth alternates from one locking lug to the other with each angular turn equal to a half ratchet tooth. The ratchet teeth have an axial. height which is sufficient. to prevent removal of the cap with one 180-degree turn. In order to remove the cap from the container spout, it is required that the closure cap be distorted into an elliptical shape and two turns of approximately 180 degrees each be performed.
380000
Rieke Corporation
Smart & Biggar
LandOfFree
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