Blow molding device and method for manufacturing a container
US9789641B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2013 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | May 6, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB67C2003/227
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Provided is a method for manufacturing a synthetic resin container, including: after the shaping of a container, drawing back a liquid inside the container to a pressurized liquid feeding unit side by a suckback mechanism disposed at a predetermined position in a feeding channel of the liquid from the pressurized liquid feeding unit to a mouth tube portion of a preform; closing the feeding channel by means of a valve mechanism disposed on the downstream side of the suckback mechanism; introducing a gas into the container so that the volume reduction deformation of the container resulting from the drawing back of the liquid is restored to its original shape; and adjusting a headspace inside the container with the amount of volume change associated with the volume reduction deformation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.