Filter bag assembly line and method
US6255620A · kind A · utility
5Cited by
6References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1999 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Apr 29, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B2160/30
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A filter bag assembly line first forms a tube from a filter media, the tube being cut to twice the length of a finished filter bag and being open on opposite ends. The tube is then vibration welded across its width, intermediate the ends, to form the bottoms of two filter bags in an end-to-end configuration. The adjoined filter bags are separated by a laser cutting machine and the separated bags then passed to an accumulation station. An operator removes a filter bag from the accumulation station and places the filter bag along with a corresponding bag ring into a welding station, which welds the filter bag and the ring together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.