"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 7567010 | Modular electric motor with stackable stator poles A modular electric motor stator pole comprising a plurality of independent stator components stacked axially, each stator segment comprising a tooth tip, a back iron and a coil, the tooth tip comprising a stator face and a tooth body, the tooth body having a first e... | 07/28/2009 |
| 7538467 | Magnetic powder metal composite core for electrical machines A compacted magnetic powder metal component assembly for use in an electrical machine is provided. Each component assembly has a top section and a bottom section. Each top section is comprised of a generally cylindrical center portion, a plurality of winding ... | 05/26/2009 |