Harold Marvin Cohen

US Patent:

58997539, May 4, 1999

Filed:

Apr 3, 1997

Appl. No.:

8/834789

Inventors:

Tse E. Wong - Los Alamitos CA
Harold M. Cohen - Los Angeles CA
Mohi Sobhani - Encino CA

Assignee:

Raytheon Company - Lexington MA

International Classification:

H01R 3900

US Classification:

439 17

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.