Electro-mechanical shower oscillator for papermaking machine
US4598238A · kind A · utility
24Cited by
16References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 24, 1985 |
| Grant date | Jul 1, 1986 |
| Priority date | — |
| Expiry date | Apr 24, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/1872
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electro-mechanical oscillator has a DC motor with an output shaft coupled to a ball screw. A ball nut riding on the ball screw is coupled to an output sleeve which moves linearly with the ball nut. When the ball nut reaches one of two extreme positions its direction of movement is reversed by reversing the polarity of the voltage supplied to the motor. A control board is provided for monitoring the position of the ball nut, for reversing the motor and for controlling the speed of the motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.