Electrical signal filter with improved isolation shield
US6429754B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1999 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | Dec 8, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H1/0007
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An electrical signal filter including elongate upper and lower filter housing members abutted along a longitudinal seam between the housing members. The housing members hold at least one circuit board having first and second filter sections electrically connected to one another. An isolation shield is formed integrally with at least the lower filter housing member and extends inwardly and upwardly from the inner surface of the lower filter housing member in a direction substantially perpendicular to the longitudinal extension of the housing member. The circuit board has at least one slot for receiving at least a portion of the isolation shield, and is positioned within the filter housing members such that the isolation shield provides magnetic isolation between the first and second filter sections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.