US3143974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for lifting railway tracks
Assignee: Matisa Materiel Industriel SA
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Filing: 1959-05-20
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Granted: 1964-08-11
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Expires: 1979-05-20
Abstract
No abstract record available.
Inventors
- 👤 Oville Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:32
CPC Classifications
E; E01; E01B; E01B33/00; E01B33/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
A DEVICE FOR THE AUTOMATIC SHIFTING OF A RAILWAY TRACK TO A PREDETERMINED POSITION AND FOR MAINTAINING THE TRACK IN SAID POSITION, SAID DEVICE COMPRISING: HYDRAULICALLY ACTUATED SHIFTING MEANS FOR SHIFTING THE TRACK, MEANS SUPPORTING SAID SHIFTING MEANS AND IN TURN SUPPORTED ON SAID TRACK AND MOVABLE WITH SAID TRACK AS THE LATTER IS SHIFTED, MEANS FOR ESTABLISHING THE POSITION TO WHICH SAID TRACK IS TO BE SHIFTED, CONTROL MEANS FOR SAID SHIFTING MEANS, SAID CONTROL MEANS COMPRISING A CASING SUPPORTED IN FIXED RELATION ON SAID MEANS SUPPORTED ON SAID TRACK, SENSING FINGER MEANS SUPPORTED ON THE LATTER MEANS FOR SENSING THE POSITION OF THE MEANS WHICH ESTABLISHES THE POSITION TO WHICH THE TRACK IS TO BE SHIFTED, AND PRESSURE FLUID DISTRIBUTION MEANS WITHIN SAID CASING AND CONTROLLED BY SAID SENSING FINGER MEANS FOR IN TURN CONTROLLING FLUID DISTRIBUTION TO SAID SHIFTING MEANS TO STOP THE FLOW OF PRESSURE FLUID TO AND FROM SAID SHIFTING MEANS TO CAUSE SHIFTING OF THE TRACK IN OPPOSITE DIRECTIONS IN RESPONSE TO THE RESPECTIVE DIRECTION OF ACTUAL DEVIATION OF THE TRACK WITH RESPECT TO SAID PREDETERMINED POSITION.
Claim 2
Independent Claim
183 words
A DEVICE FOR THE AUTOMATIC SHIFTING OF A RAILWAY TRACK TO A PREDETERMINED POSITION AND FOR MAINTAINING THE TRACK IN SAID POSITION, SAID DEVICE COMPRISING: HYDRAULICALLY ACTUATED SHIFTING MEANS FOR SHIFTING THE TRACK, MEANS SUPPORTING SAID SHIFTING MEANS AND IN TURN SUPPORTED ON SAID TRACK AND MOVABLE WITH SAID TRACK AS THE LATTER IS SHIFTED, MEANS FOR ESTABLISHING THE POSITION TO WHICH SAID TRACK IS TO BE SHIFTED, CONTROL MEANS FOR SAID SHIFTING MEANS, SAID CONTROL MEANS COMPRISING A CASING SUPPORTED IN FIXED RELATION ON SAID MEANS SUPPORTED ON SAID TRACK, SENSING FINGER MEANS SUPPORTED ON THE LATTER MEANS FOR SENSING THE POSITION OF THE MEANS WHICH ESTABLISHES THE POSITION TO WHICH THE TRACK IS TO BE SHIFTED, AND PRESSURE FLUID DISTRIBUTION MEANS WITHIN SAID CASING AND CONTROLLED BY SAID SENSING FINGER MEANS FOR IN TURN CONTROLLING FLUID DISTRIBUTION TO SAID SHIFTING MEANS TO STOP THE FLOW OF PRESSURE FLUID TO AND FROM SAID SHIFTING MEANS TO CAUSE SHIFTING OF THE TRACK IN OPPOSITE DIRECTIONS IN RESPONSE TO THE RESPECTIVE DIRECTION OF ACTUAL DEVIATION OF THE TRACK WITH RESPECT TO SAID PREDETERMINED POSITION.
References Cited (Backward Citations)
US2926617A
Cited
US2996016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |