Contact retention and sealing system
US5015192A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1989 |
| Grant date | May 14, 1991 |
| Priority date | — |
| Expiry date | Nov 13, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49179
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method is described for installing contacts with their rear tail ends soldered to holes of a circuit board and their front mating ends insulative housing layers, which facilitates inspection of the solder connections to the circuit board and defluxing of the assembly after soldering. The front contact portions are partially inserted into holes in an elastomeric housing layer (50, FIG. 3) until a first forwardly-facing shoulder (76) on each contact abuts an abutment (92) on the elastomeric layer. The contact rear ends are inserted into corresponding holes in the circuit board (56) until a second rearwardly-facing shoulder on each contact abuts the front face of the board, and the contacts are then soldered to the board. The distance (H, FIG. 2) between the first and second contact shoulders is sufficient to provide a considerable gap (A) between the board and the elastomeric layer, so the solder connectiosn can be visually inspected. Finally, the contacts are pushed further into the housing until the rear face of the elastomeric layer lies facewise against the front face of the board. The elastomeric layer can be formed with a tubular extension (170, FIG. 7) around each plug conta…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.