Ultrasonic sealing apparatus
US7178316B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2002 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | Aug 14, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7166
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An ultrasonic sealing apparatus is provided for transversely ultrasonically sealing a packing material comprised of a laminated body including at least a thermoplastic resin layer having a tubular form and containing a fluid. The apparatus includes a horn having an elongated and flat sealing face and an opposing jaw with an action face including a pressing portion for pressing the packing material in cooperation with the sealing face of the horn to a define at least one transverse sealing zone of the tubular packing material. At least one groove is disposed on the action face of the opposing jaw for forming a molten thermoplastic resin bulge in a vicinal area of the at least one sealing zone on a side in contact with the fluid in the tubular packing material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.