Package with push-pull dispensing closure
US5850951A · kind A · utility
28Cited by
38References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 20, 1996 |
| Grant date | Dec 22, 1998 |
| Priority date | — |
| Expiry date | Sep 20, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2543/00972
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A package has a "push-pull" type dispensing closure either threadably engaged with or in press-fit engagement with the container mouth. The closure includes an outer skirt that is pliable and inwardly deformable when squeezed and a dispenser plug member selectively positionable to seal or unseal a dispensing orifice. The container has a mouth and a shoulder below the mouth which slants upwardly and inwardly. When the outer skirt of the closure is squeezed inwardly, the lower skirt edge engages the shoulder causing an upward camming of the closure, whereby the plug member unseals the dispensing orifice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.