Fluid pressure brake apparatus for remote multiple unit locomotive trains
Abstract
Abstract AN APPARATUS UTILIZED IN MULTIPLE UNIT TRAIN BRAKE CONTROLS WHEREBY ELECTRICAL CIRCUITRY, INCLUDING A BRAKE PIPE FLOW INDICATOR IN COOPERATION WITH A CONTROL SIGNAL COMMUNICATION CONTINUITY SENSING RELAY, IS EMPLOYED FOR PREVENTING AN UNDESIRED RECHARGING OF THE BRAKE PIPE AT A LOCATION REMOTE FROM THE LEAD LOCOMOTIVE BY OPERATION OF A BRAKE VALVE ON A REMOTE LOCOMOTIVE IN THE TRAIN, WHICH RECHARGING WOULD OTHERWISE RESULT WHEN A BRAKE PIPE REDUCTION CALLING FOR A BRAKE APPLICATION ON THE TRAIN IS EFFECTED BY THE OPERATION OF THE BRAKE VALVE ON THE LEAD LOCOMOTIVE AT A TIME WHEN NORMAL CONTROL SIGNAL COMMUNICATION BETWEEN THE LEAD LOCOMOTIVE AND SAID REMOTE LOCOMOTIVE IS INTERRUPTED, THEREBY PREVENTING INITIATION OF SUCH BRAKE APPLICATION AT SAID REMOTE LOCOMOTIVE IN NORMAL MANNER.
Inventors
- 👤 Robert J Worbois
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |