Venting system for use with a foam-in bag dispensing system
US7367171B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2006 |
| Grant date | May 6, 2008 |
| Priority date | — |
| Expiry date | Jan 18, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C44/588
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A venting device with base and an adjuster supported by the base, and a driver driving the adjuster. The adjuster includes a film vent former moved by the driver between vent formation mode and non-vent formation mode. The adjuster includes an adjustable blade moving from non-vent mode position with the blade on a first side of the film to vent mode position with a segment of the blade positioned on an opposite film side. The blade has a blade segment traveling within a nip region of the film driver of a foam-in-bag dispenser, where the venting device is nestled in a film drive component slot in the nip zone, and an opposite nip zone roller across the film path has a reception groove receiving the blade segment. The blade is contained in a housing shaped to perform a film wrap around prevention function relative to the bag forming assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.