Ultrasonic sealing device for packaging material
US6599389B1 · kind B1 · utility
7Cited by
3References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 23, 2001 |
| Grant date | Jul 29, 2003 |
| Priority date | — |
| Expiry date | Dec 6, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7128
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A belt-like film 18 is moved along a plate 15 folded to be rectangular in section, so that the film 18 is formed into a continuous tube by a tubular frame of the plate 15. A spring piece 30 having an anvil 31 bulged out therefrom is securely held on the inner side edge 16 of the aforementioned plate 15, and an ultrasonic hammer 32 is located face to face with said anvil 31, so that both side edges of the belt-like film 18 formed into a tube are placed on the anvil 31 to be melded by the ultrasonic vibration of the hammer 32.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.