Closure assembly
US3934744A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 3, 1974 |
| Grant date | Jan 27, 1976 |
| Priority date | — |
| Expiry date | Oct 3, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D50/041
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An outer cap for association with a conventional externally knurled screw closure cap and serving as a safety overcap converting the same to a double cap safety closure for sealing threaded bottles and other containers with contents which might be harmful to children; with the outer cap constructed for trapped association with the inner cap for permissive free rotation relative thereto but provided with internal knurling and an adjacent relieved or slotted area permitting inward flexing of the adjacent knurled wall of the overcap into engagement with the external knurling of the inner cap upon selected pressure applied by an adult to effect rotation of both caps in unison, such as the unscrewing direction, for authorized access to the contents of the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.