Automatic displacer clearance adjustment
US8696414B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2010 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Apr 5, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA22C11/108
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method producing a plait-like portion on a tubular packaging casing, which accommodates a filling material includes a plait-like portion at least approximately free of filling material, extending along a longitudinal plait-axis. The apparatus comprises a first displacer unit with a first pair of displacer elements reversibly movable between an opened and a closed position perpendicular to the longitudinal plait-axis. A displacer clearance is created between the first pair of displacer elements, which surrounds the longitudinal plait-axis, in which the tubular packaging casing is being gathered, when the first pair of displacer elements is in the closed position. The apparatus comprises a second displacer unit with a second pair of displacer elements also being reversibly movable between an opened and a closed position perpendicular to the longitudinal plait-axis. A displacer clearance is created between the second pair of displacer elements, similar to first pair of displacer elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.