Safety closure
US4690292A · kind A · utility
27Cited by
17References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 20, 1986 |
| Grant date | Sep 1, 1987 |
| Priority date | — |
| Expiry date | Jun 20, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D50/068
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A safety closure is disclosed for containers of potentially harmful substances. The safety closure includes an inner cap threaded over the container and an outer cap which encloses and is rotatably supported by the outer cap which tracks in a groove in the inner cap. The groove includes an inner section in which the lug is free to move, an outer section including two abutments, and sections interconnecting the inner and outer section. When the driving lug engages either of the abutments, the outer cap can rotate the inner cap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.