Threaded container torque retention system for use with a threaded closure
US5676270A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 12, 1996 |
| Grant date | Oct 14, 1997 |
| Priority date | — |
| Expiry date | Jun 12, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D41/0471
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A removal torque-resistant closure and container assembly is provided with the container having a thread extending around the opening. The closure includes a thread for engaging the container thread. The container includes a projection that extends from the thread root between two adjacent thread crests on the container and that defines an outer edge for temporarily deforming the closure thread during relative rotational movement of the container and closure when the container and closure are screwed together. Upon termination of the screwing action, the container projection edge is engaged with a deformed region of the closure thread so as to resist closure removal by unscrewing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.