Quotables
"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 |
| 6923055 | Positive displacement flow meter method and apparatus A flow meter comprising a rotor assembly that is comprised of two rotors having axis of rotation offset from collinear where the two rotors define operating chambers that changing volume with respects to rotation and allow fluid to pass from an inlet port to an outl... | 08/02/2005 |
| 6887057 | Minimal contact seal positive displacement device method and apparatus A positive displacement device that incorporates two rotors that are offset from collinear and each comprising a first and second set of vanes where the engagement surfaces of the first set of vanes are adapted to only engage when the rotors are in the top dead cent... | 05/03/2005 |
| 6634873 | Method for determining engagement surface contours for a rotor of an engine An improved rotary engine and method for determining the contours of the sealing surfaces thereof. The improved engine provides for maintaining a predetermined, optimal gap between the sealing surfaces during rotation. The gap may be parallel or angled, a... | 10/21/2003 |
