Spring-loaded ball contact connector
US5899753A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1997 |
| Grant date | May 4, 1999 |
| Priority date | — |
| Expiry date | Apr 3, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R39/643
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A spring-loaded ball contact device having a housing, a spring disposed in the housing, a moveable plunger disposed in the housing that contacts the spring, a freely moveable ball contact disposed at an end of the plunger, and a lubricant stored within the housing for lubricating the ball contact. A rotary connector using the spring-loaded ball contact devices has first and second printed wiring boards that rotate relative to each other that are electrically interconnected using a plurality of spring-loaded ball contact devices disposed on the first printed wiring board. The spring-loaded ball contact devices are used to transfer electrical signals or power to conductive contacts formed on the second printed wiring board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.