Constant force spring perimeter seal for an electromagnetic shielded door
US8925251B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Dec 10, 2013 |
| Grant date | Jan 6, 2015 |
| Priority date | — |
| Expiry date | Dec 10, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B5/18
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An electromagnetic shielded door with constant force spring perimeter seal may include a door panel and door jamb. The door panel may include a sealing member around a perimeter of an inside face of the door panel. In certain embodiments, the sealing member may have a raised sealing surface. The door jamb may have at least one spring containment member along an inside perimeter facing the door panel. A spring mechanism may attach to the at least one spring containment member. The spring mechanism may include a plurality of continuous force flat torsion roller springs attached to at least one spring containment member which may be part of a channel. The raised sealing surface may engage with the plurality of continuous force flat torsion roller springs on the at least one spring containment member of the channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.