Method of forming a container by blowing and filling
US9259887B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2011 |
| Grant date | Feb 16, 2016 |
| Priority date | — |
| Expiry date | Jul 22, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2949/0715
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of forming a container (18), includes: a partial expansion first step (E1) during which the container (18) is filled with a pressurized blowing gas (G); a second step (E2) of filling the container (18) during which the container (18) is filled with a filling liquid (L) that expels the blowing gas (G) through an outlet orifice (34); and a third step (E3) during which the contents of the container (18) are put under a pressure (HP) so as to make the container (18) conform to its final state (18D), characterized in that, during the filling second step (E2), the ratio of the flow rate of the incoming filling liquid (L) to the flow rate of the outgoing blowing gas (G) is controlled so as to allow the container (18) to continue to expand during this second step (E2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.