Method of and apparatus for stopping machines
Abstract
Abstract A SYSTEM FOR BRAKING A MOVING MACHINE PART IN WHICH A PLUSE TRAIN IS GENERATED AT A FREQUENCY PROPORTIONAL TO THE VELOCITY OF THE MOVING PART, THE PULSE TRAIN FREQUENCY BEING CONVERTED INTO AN ANALOGOUS VOLTAGE PROPORTIONAL TO SUCH VELOCITY, IN ADDITION, THE PULSE TRAIN IS USED TO PROVIDE AN OUTPUT SIGNAL PROPORTIONAL TO THE DISTANCE BETWEEN THE INSTANTANEOUS POSITION AND THE DESIRED STOPPING POINT BY PULSE COUNTING, THE LATTER SIGNAL BEING CONVERTED TO A SIGNAL PROPORTIONAL TO THE SQUARE ROOT OF THE REMAINING DISTANCE. A COMPARATOR IS RESPONSIVE TO THE ANALOG SIGNAL PROPORTIONAL TO PULSE FREQUENCY AND VELOCITY AND TO THE ROOT SIGNAL PROPORTIONAL TO THE SQUARE ROOT OF THE RESIDUAL DISTANCE TO PROVIDE A DIFFERENCE SIGNAL IN ACCORDANCE WITH WHICH THE BRAKING OF THE MACHINE PART IS REGULATED.
Inventors
- 👤 Rudolf H Wanner
- 👤 Berthold Mader
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |