Joint structure between the wall elements of a magnetically shielded room
US8253036B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2005 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Jan 23, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/46
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a joint structure between the wall elements of a light-weight magnetically shielded room. In the joint structure, the end of the aluminum plate of the element is stepped and its surface roughened. In addition to this, the aluminum plate is coated, for example, with tin to improve the electrical contact. The joint includes μ metal plates which are used to make a magnetic contact between the μ metal plates of the elements. The compression force achieved by means of bolts is transmitted to the joint by means of an aluminum moulding. The non-continuous compression force is balanced over the entire joint area by using presser rubbers. The joint structure is protected by means of supporting profiles which are used to electrically couple the thinner aluminum plate of the sandwich type wall element to the thinner aluminum plate of an adjacent element. The thinner aluminum plate and the supporting profile can also be coated, for example, with tin to improve the contact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.