Electrical contact assembly for interconnecting test apparatus and the like
US6159056A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 15, 1999 |
| Grant date | Dec 12, 2000 |
| Priority date | — |
| Expiry date | Nov 15, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R2103/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical contact assembly (10) for use, for example, in interfacing between a circuit board or the like to be tested and test apparatus has first and second contact plungers (14,16) which are slidably mounted in an outer barrel (12) with respective contact projections (14c,16c) extending out opposite ends of the barrel. The first contact plunger (14) is hollow and slidably receives therein an elongated longitudinally extending portion (16a) of the second contact plunger (16), the contact plungers being biased apart by a coil spring (18) mounted between respective spring seats (14e,16g) of the contact plungers. Alternate embodiments (10',10") include a plurality of longitudinally extending fingers (14h,16h) formed in one of the plungers which form an interference fit with the other plunger. In another embodiment (10'") the first and second contact plungers (14",16") are interlocked together by means of a decreased diameter portion (14k) in the bore of the first contact plunger and a cooperating enlarged diameter portion (16m) at the distal end of the elongated portion (16a).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.