Compensation for hydrapak machine using isolator cylinder
US9216537B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2012 |
| Grant date | Dec 22, 2015 |
| Priority date | — |
| Expiry date | Mar 5, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2067/003
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for simultaneously forming and filling a plastic container is provided. A mold having a mold cavity defines an internal surface and is adapted to accept a preform. A pressure source is operable to draw liquid through the inlet and urge it into the preform. A blow nozzle may be adapted to receive the liquid from the pressure source and transfer the liquid at high pressure into the preform thereby urging the preform to expand toward the internal surface of the mold cavity and create a resultant container. A pressure compensation system can exert a clamping force on the mold in response to the pressure source. The liquid remains within the container as an end product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.