Twist-openable dispensing closure accommodating optional liner puncture feature
US6477743B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2001 |
| Grant date | Nov 12, 2002 |
| Priority date | — |
| Expiry date | Aug 14, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2251/0093
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A dispensing closure system is provided for a container. The system includes a body for extending from the container at the container opening. The body includes a base, a conduit that is reciprocatable relative to the base, and a flexible wall joining the conduit to the base. The conduit includes a dispensing aperture and a first seal surface. A spout is carried on, and is rotatable relative to, the body. The spout includes a dispensing orifice and a second seal surface for engaging the first seal surface. The body and spout together define a rotary-to-linear motion translation drive system that is (1) responsive to the rotation of the spout in one direction for moving the conduit in a first direction to a closed position, and (2) responsive to the rotation of the spout in the opposite direction for moving the conduit in a second direction opposite from the first direction to an open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.