Joy stick
US5087904A · kind A · utility
13Cited by
1References
13Claims
0Family size
Inventor
Key dates
| Filing date | Feb 9, 1990 |
| Grant date | Feb 11, 1992 |
| Priority date | — |
| Expiry date | Feb 9, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20201
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A joy stick has a handle attached to a ball-shape member which is formed with a groove below its largest diameter into which an electrical conductive spring is mounted. The ball is mounted in a spherical cavity upon which are formed resistive paths which are engageable by the spring on the ball. The ball is moveable such that the spring can vary the resistance on the resistive paths so as to provide electrical signals which indicated any time the position of the ball relative to the socket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.