Perforation machine for manufacturing adjustable vent baffles
US8079293B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2007 |
| Grant date | Dec 20, 2011 |
| Priority date | — |
| Expiry date | Apr 1, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T225/12
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A perforating machine for perforating a plurality of perforation lines in a vent baffle sheet comprises a support table having two spaced apart openings, perforating wheels, two backstop wheels, and an endless feed belt having a plurality of protrusions. The perforating wheels and the two backstop wheels are positioned on opposite side of the support table. The perforating wheels engage with the two backstop wheels through the two spaced apart openings. The endless feed belt has an upper portion and a lower portion. The lower portion of the endless feed belt is positioned above the support table. The protrusions on the lower portion of the endless feed belt engage with side stiffeners of the vent baffle sheet to move the sheet through the perforating wheels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.