Circuit board sub-assemblies, methods for manufacturing same, electronic signal filters including same, and methods, for manufacturing electronic signal filters including same
US6989994B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2004 |
| Grant date | Jan 24, 2006 |
| Priority date | — |
| Expiry date | Apr 14, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49126
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electronic signal filter includes a cylindrical housing and a circuit board positioned therein having a plurality of peripheral edges and at least two circular through-holes formed therein. Each through-hole is inwardly spaced from one of the peripheral edges of the circuit board, defining a first distance between a respective one of the through-holes and a respective peripheral edge of the circuit board and defining a second distance between the through-holes. The filter also includes a ground strap attached to and spaced a distance above the circuit board. The ground strap includes a first portion, an integral second portion residing in and extending through each through-hole, and an integral third portion that contacts a portion of the second surface of the circuit board. At least a portion of the first portion of the ground strap contacts the inner peripheral surface of the cylindrical housing to ground the circuit board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.