System, method and apparatus for producing fire rated doors
US7832166B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 21, 2007 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | Oct 6, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53417
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention provides a system, method and apparatus for producing fire rated doors having added strength, better finishing and low cost manufacturing flexibility. The fire rated doors are made from two panels “sandwiched” together. An optional interior layer (e.g., fire resistant material, lead sheeting, steel or Kevlar) can be added between the door panels for various purposes. Splines, stiles or sticks are inserted in longitudinal channels in the door panels to provide assistance in aligning the door panels and greater hardware holding strength. An intumescent banding material concealed by a banding material around the perimeter of the door seals the door within its frame during a fire. The door design and the automated manufacturing process provide greater design choice, reduced cost and faster fabrication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.