Apparatus for the application of pressure relief valves
US8082644B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2008 |
| Grant date | Dec 27, 2011 |
| Priority date | — |
| Expiry date | Apr 5, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53552
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A system for applying pressure relief valves to packaging from a liner carrying adhesive backed pressure relief valves passing over a series of rollers in tension onto a peeler bar. There is a valve applicator unit proximate the peeler bar with a punch shaft and an applicator shaft with an applicator vacuum head. The liner is moved by a retraction unit including clamping members that alternately maintain the liner stationary under tension and pull the liner under tension to advance the liner carrying adhesive backed pressure relief valves. A supply reel for a roll of liner carrying adhesive backed pressure relief valves has a pair of spaced apart plates and a pair of rings with a non-stick coating positioned between each of the plates and the roll of liner. The plates, rings and roll of liner are compressed together by an adjustable retainer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.