Child-resistant package
US4375859A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 9, 1981 |
| Grant date | Mar 8, 1983 |
| Priority date | — |
| Expiry date | Nov 9, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D50/061
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A child-resistant package comprising a container and a snap-on closure. The container has a neck finish including a first upper annular retaining bead and a second lower annular retaining bead spaced axially beneath the first annular bead. The first retaining bead has a notch therein and the second annular bead is continuous. An annular protective flange extends radially outwardly and is axially spaced below the second bead. The closure has a base and a peripheral skirt with a lifting tab on the outer surface thereof, a first radially inwardly extending locking lug on the inner surface thereof adjacent the external lifting tab, and at least one second radially inwardly extending locking lug located diametrically opposite from the lifting tab and axially below the plane of the first locking lug. When the closure is assembled to the finish, the first locking lug is located below the first retaining bead and the second locking lug is located beneath the second retaining bead, and when the closure is rotated to bring first locking lug into registry with the notch, the closure can be removed by upward force on the lifting tab. A stabilizing bead is provided diametrically opposite the lo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.