Package employing unique seal
US4712699A · kind A · utility
25Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 2, 1986 |
| Grant date | Dec 15, 1987 |
| Priority date | — |
| Expiry date | Oct 2, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D41/0414
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A package includes a container having an upper finish with inner and outer surfaces. The outer surface includes threads adjacent the top of the finish, and the inner surface includes a lower sealing section located solely in a section of the finish spaced downwardly from the upper margin of said finish. A closure for the container includes an inner valve having an outer sealing surface for frictionally engaging only the lower sealing section of the inner finish surface to provide a leak-proof seal for the package.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.