Replaceable closure system
US5413240A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1993 |
| Grant date | May 9, 1995 |
| Priority date | — |
| Expiry date | Sep 17, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D39/084
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A drum closure system is provided for protecting the integrity of the threads of a drum neck and for providing the safe and easy installation of a replaceable closure neck. The drum closure system primarily comprises a drum with a drum neck integrally formed in the drum top, a closure plug, a replaceable closure neck which is interposed threadably between the drum neck and the closure plug, and a specialized tool for installing and removing the replaceable closure neck. The use of the tool, which is designed to enable exertion of very high levels of torque on the replaceable neck, eliminates the need for a locking mechanism between the replaceable neck and drum neck because insertion of the replaceable neck at a high torque measurement virtually eliminates the possibility of relative rotation of the replaceable neck without the specialized tool. Installation of the closure plug makes the removal of the replaceable neck virtually impossible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.