Twist and push snap-on child resistant cap
US5161706A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 23, 1992 |
| Grant date | Nov 10, 1992 |
| Priority date | — |
| Expiry date | Mar 23, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D50/041
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A twist and push snap-on, child resistant cap and container has an inner cap seal which is easily snapped onto a neck of a container and an outer cap. The outer cap has a top and sidewalls and has a greater cross-sectional area than the inner cap, and receives and physically restrains the inner cap within the outer cap such that the inner cap may be moved upwardly and downwardly within it over specified distance. The outer cap includes a locking lug located on its inside wall adapted to snap over a circumferential bead located on the neck of the container. There is a stop located on the inside wall of the outer cap and is freely rotatable about the neck of the container except when in contact with stop(s) on the neck of the container at its level of rotation when the outer cap is on the container. A spring mechanism located between the inner and outer cap so as to bias downwardly the inner cap. There is a bead located circumferentially about its neck with a break to allow the lug and stop of the outer cap to pass therethrough. A first stop is located on the neck near but not above or below the opening in the bead and a second stop, larger than the first, is capable of preventing mo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.