RF sealed radio housing
US5095177A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 1990 |
| Grant date | Mar 10, 1992 |
| Priority date | — |
| Expiry date | Sep 20, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/034
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A two-piece transceiver housing for a mobile telephone comprises an open-topped box and a separate lid both made of conductive material, specifically diecast aluminium. A plurality of flat projections are formed integrally on the underside of the lid. These projections are arranged to bear internally against the side wall of the box when the lid is in place to prevent radio frequency radiation escaping from the housing without the need for a separate sealing component. The projections have a tapering curvilinear or rectilinear profile. This helps to distribute the stress and enables the projections to suffer slight deflection without breaking even when they are made of cast aluminium which is relatively brittle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.