Antibackoff threaded ring closure using ratchet means
US4091949A · kind A · utility
25Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1977 |
| Grant date | May 30, 1978 |
| Priority date | — |
| Expiry date | Mar 14, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D50/067
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A ratchet mechanism is provided for preventing disassembly of an outer ring used to jack a hermetically sealed overcap from the neck of a container. The ratchet mechanism comprises a set of teeth on the outer ring which act in cooperation with a set of teeth on the overcap thereby providing a means for preventing rotation of the outer ring in a direction tending to unscrew the outer ring from the overcap, but permitting rotation of the outer ring in the jacking direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.