Single sided shuttle-type blow molding method
US8506875B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2010 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Oct 21, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C49/42069
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A single-sided shuttle-type blow molding apparatus having an extruder for substantially continuously extruding a thermoplastic material in tubular form at a moldable temperature downwardly along a vertical axis. The apparatus includes a mold having a set of mold parts adapted to open and close relative to each other to define, when closed, a mold cavity. A shuttle having the mold mounted thereon is arranged to move along a closed path from a first position wherein the mold engages, when open, a finite length of the thermoplastic tube, to a second position away from the first position. The apparatus further includes a blow head adapted to blow the finite length of the thermoplastic tube to form the container as the mold moves from the first position to the second position of the closed path. The apparatus includes no more than one mold. A method is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.