Pneumatic digital positioning means
Abstract
Abstract A PLURALITY OF SEPARATE PNEUMATICALLY OPERATED ACTUATORS DISPOSED IN ALIGNED AND ABUTTING RELATION TO PROVIDE A LINEAR POSITIONING UNIT HAVING OPPOSED ENDS WITH EACH ACTUATOR BEING INDIVIDUALLY OPERABLE TO LINEARLY EXTEND ITSELF WHEN ACTUATED AND THEREAFTER TO LINEARLY COLLAPSE ITSELF WHEN DEACTUATED WHEREBY ONE END OF THE UNIT WILL BE CORRESPONDINGLY LINEARLY EXTENDED RELATIVE TO THE OTHER END THEREOF AND THEREAFTER BE LINEARLY COLLAPSED RELATIVE TO THE OTHER END THEREOF. A CONTROL DEVICE BEING OPERATIVELY INTERCONNECTED TO THE ONE END OF THE POSITIONING UNIT TO BE CONTROLLED IN RELATION TO THE POSITION OF THE ONE END RELATIVE TO THE OTHER END THEREOF AND CONTROL MEANS FOR DIRECTING A SOURCE OF PNEUMATIC FLUID TO AT LEAST ONE OF THE ACTATORS TO EXTEND THE ONE END OF THE UNIT BY THE DEGREE OF ACTUATION OF THE ONE ACTUATOR AND FOR THEREAFTER DISCONNECTING THE SOURCE FROM THAT ONE ACTUATOR TO COLLAPSE THE ONE END OF THE UNIT BY THE DEGREE OF DEACTUATION OF THE ONE ACTUATOR.
Inventors
- 👤 Louis M Puster
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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |