Automatically re-closing a closure difficult for children to open
US4078702A · kind A · utility
5Cited by
7References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 14, 1976 |
| Grant date | Mar 14, 1978 |
| Priority date | — |
| Expiry date | Oct 14, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D47/265
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
This invention relates to automatic closures of the type in which finger pressure applied to a portion of the closure opens an aperture of a container to which the closure is attached thereby permitting dispensing of granular material from the container. Upon release of finger pressure, the closure self-closes, preventing accidental dispensing of material from the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.