System and method for detecting and registering serrated bags
US8157141B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2006 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Jun 3, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T225/35
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A system for detecting and registering serrated bags includes a web including a plurality of bags connected in an end-to-end arrangement, each bag including a first and second side, a first and second longitudinal end, a transverse seal, a serration disposed transversely across the bag, and a tab integrally connected to the bag at a portion of but less than the entire extent of the tab; a device for projecting a stream of air on each bag as the web passes a predetermined location; and a first and a second pair of nip rolls, each disposed downstream of the device, and adapted to accommodate the web, and to drive at different speeds such that a lead bag is separated from the web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.