Covered hopper car end construction
Abstract
Abstract IN A CENTER SILL-LESS RAILROAD HOPPER CAR, A PAIR OF OPPOSED END STRUCTURES AND A CENTRAL HOPPER PORTION HAVING OPPOSED SLOPE SHEETS, EACH END PORTION COMPRISING A STUB CENTER SILL ON WHICH IS MOUNTED A FLAT HORIZONTAL SHEAR PLATE ATTACHED TO LATERAL VERTICAL SIDE SKIRT MEANS AND A BOLSTER WEB BEAM MOUNTED ON THE SHEAR PLATE AND CONNECTING WITH THE SIDE SKIRT MEANS FOR BEAMING THE IMPACT LOADS ON THE CENTER SILL INTO THE SIDE GIRDERS OF THE CAR, THE BOLSTER WEB BEAM BEING ATTACHED WITH THE RESPECTIVE SLOPE SHEET OF THE CENTER PORTION BY GUSSET MEANS MOUNTED ON THE RESPECTIVE STUB SILL OR AN END BEAM BEING MOUNTED ON THE OUTER END OF THE SHEAR PLATE BEAM AND CONNECTING WITH THE SIDES OF THE CAR.
Inventors
- 👤 Kent N Johnson
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) | 1974-09-19 | 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 |