Ballast spreader and compactor
Abstract
Abstract AN APPARATUS FOR SPREADING AND COMPACTING BALLAST UNDER RAILWAY TRACKS WHICH UTILIZES A SLED STRUCTURE WITH BALLAST SPREADING MEANS WHICH IS ADVANCED BENEATH THE RAILS AND TIES. THE SLED IS FOLLOWED IMMEDIATELY BY A PLURALITY OF VIBRATORY TAMPERES OR COMPACTORS WHICH COMPACT THE BALLAST BEFORE THE RAILS AND TIES ARE REPLACED ON THE BALLAST LAYER. THE NOVEL METHOD INCLUDES THE STEPS OF PREPARING A SUBGRADE OR SUB-BASE, LAYING THE TIES AND RAILS ON THE SUBGRADE, DEPOSITING BALLAST ALONG THE RAILS AND TIES FROM SUCH MEANS AS RAIL CARS, UTILIZING THE APPARATUS FOR THE PRESENT INVENTION TO RAISE THE RAILS AND TIES AND UNIFORMLY SPREAD THE BALLAST THEREUNDER WHILE COMPACTING THE SAME BEFORE THE RAILS AND TIES ARE REPLACED, TAMPING ADDITIONAL BALLAST BENEATH THE RAILS AND TIES TO BRING THE RAILWAY TO A PROPER ELEVATION ALIGNMENT AND CROSS LEVEL AND THEN DRESSING THE RAILS AND TIES WITH FINE BALLAST.
Inventors
- 👤 Joseph G Fearon
- 👤 Alan R Blair
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |