Child resistant cap with automatic release key
US5509550A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 5, 1995 |
| Grant date | Apr 23, 1996 |
| Priority date | — |
| Expiry date | Jan 5, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D50/067
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The child resistant cap device is for containers with a threaded neck openings. It includes an inner cap, an outer cap and a key bar. The inner cap has a top and a sidewall having threads on its inside. The sidewall has on its outside, one of a male attaching mechanism and a female attaching mechanism for receiving and attaching the outer cap onto the inner cap so as to be rotatably fixed thereon. The top of the inner cap has a release key engagement on its outside, and the outside of the inner cap also has one way ratchets or ratchet blocks to permit engagement of the outer cap for rotating thereon, in a single, closing direction and preventing engagement of them for rotating them in a single, opposite, opening direction. The outer cap has a top and a sidewall having on its inside the other of a male attaching mechanism and a female attaching mechanism. The top of the outer cap has a release key bar with a key which is pivotable for 180.degree. rotation so as to be engageable with the key arrangement of the inner cap so as to permit opening of the inner cap by rotation of the outer cap when the release key is engaged in the release key engagement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.