Dispensing head for a product of liquid to viscous consistency, comprising an elastic closing element and a dispensing unit thus equipped
US5924605A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1997 |
| Grant date | Jul 20, 1999 |
| Priority date | — |
| Expiry date | Jul 1, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D47/38
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A dispensing head for the dispensing a product of a liquid to viscous consistency from a container includes a rigid cap (2) and an elastic closing element (4) joined to the cap (2), and a zone of smaller thickness delimited by the edges of a groove (6) made in the elastic element. The zone of a smaller thickness ruptures under the effect of a pressure exerted on one side or the other of the elastic element (4) to define at least one slit (5) capable of opening under the thrust of the product with a view to its dispensing, and returning to its contiguous position when this thrust ceases to be applied. The rupture may occur during manufacture to form the slit or may be caused by a user squeezing the container prior to first use of the product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.