Package closure with rotatable material stripping element
US9637289B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 8, 2015 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Jun 8, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D47/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A package closure embodying a rotatable material stripping element provides a means to close off the package opening and comprises a material stripping element that accommodates the insertion and withdrawal of an external mixing element with a predetermined close fit. Whereas, the said mixing element may be inserted through the closure and into the vessel to mix material contained therein, and after the mixing operation is complete, the material stripping element strips off substantially whatever material residue is sticking to the mixing element as it being withdrawn from the vessel and the closure, thus preventing it from escaping the vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.