Lightweight railway container car
Abstract
Abstract A RAILWAY CAR OF LIGHTWEIGHT DESIGN CONSISTING OF AN INTERMEDIATE FRAME STRUCTURE, WHICH INCLUDES A PAIR OF LATERALLY SPACED SIDE SILLS OF I-BEAM CONSTRUCTION HAVING A SUBSTANTIAL DEPTH, HAS CONNECTED AT OPPOSITE ENDS THEREOF TRANSITION STRUCTURES OF BOXLIKE DESIGN. THE INTERMEDIATE STRUCTURE SUPPORTS BETWEEN THE LONGITUDINAL SIDE SILLS END FRAME STRUCTURES EACH OF WHICH INCLUDES A SECTION OF BOXLIKE CENTER SILL PROJECTING OUTWARDLY FROM THE TRANSISTION STRUCTURES PROVIDING STRUCTURAL SUPPORTS FOR SAID CENTER SILLS. THE END FRAME STRUCURES ARE ALSO PROVIDED WITH CROSS MEMBERS PROVIDING SILL PLATFORMS WHICH SUPPORT CONTAINER BRACKETS. ADDITIONAL CONTAINER BRACKETS ARE SUPPORTED ON THE SIDE SILLS OF THE INTERMEDIATE STRUCTURE.
Inventors
- 👤 Kent N Johnson
- 👤 John H Spence
- 👤 Ray L Ferris
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) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |