Press on, screw tight means for applying a closure
US5054268A · kind A · utility
15Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1990 |
| Grant date | Oct 8, 1991 |
| Priority date | — |
| Expiry date | Aug 16, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/565
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Inadvertent rupture of frangible tamper evidencing means during application of threaded closures is reduced by axially pressing the closure partially onto the container, without rotating the closure, until a downwardly tapered retaining means on the closure is engaged by an upwardly tapered locking rib around the container finish. This engagement centers and positions the closure so that the axis of the closure is aligned with the container axis. The closure is held in alignment to prevent cocking or misengagement of the threads until the closure is thereafter turned to tighten it on the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.