US3245553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-operated uncoupling mechanism
Assignee: Symington Wayne Corp
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Filing: 1965-03-24
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Granted: 1966-04-12
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Expires: 1985-03-24
Abstract
No abstract record available.
Inventors
- 👤 Geoffrey W Cope
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:25
CPC Classifications
B; B61; B61G; B61G5/00; B61G5/06; B61G5/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
81 words
A LIQUID-OPERATED UNCOUPLING MECHANISM FOR AN AUTOMATIC RAILWAY COUPLER, COMPRISING LIQUID-OPERATED ACTUATOR MEANS MOUNTED ON SAID COUPLER AND OPERATIVELY CONNECTED TO A LOCK THEREOF, SAID ACTUATOR MEANS IN THE ABSENCE OF LIQUID PRESSURE THEREON RESTRAINING SAID BLOCK AGAINST MOVEMENT IN AN UNLOCKING DIRECTION AND IN RESPONSE TO FLUID PRESSURE MOVING SAID LOCK TO UNLOCK SAID COUPLER, AND INDEPENDTLY OPERABLE AUTOMATIC AND MANUAL OPERATING MEANS LIQUID-CONNECTED THROUGH A COMMON LEAD LINE TO SAID ACTUATOR MEANS FOR SELECTIVELY APPLYING SAID LIQUID PRESSURE THERETO.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |