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 |
| 7240694 | Flow control valve for refrigeration system A flow control valve includes a valve body defining fluid inlet and outlet sections interconnected by a connecting port. A valve unit is disposed in the valve body and is operably connected to an actuator to be moved thereby for opening and closing the connecting po... | 07/10/2007 |
| 6957661 | Valve with pressurization rate reduction device A valve includes a housing assembly, a stem assembly and a surge suppression device. The surge suppression device includes an initial flowpath between the valve inlet and the outlet, a primary flowpath between the inlet and the outlet, a first valve assembly and a s... | 10/25/2005 |
| 6901962 | Surge prevention device A surge prevention valve may be used to prevent the formation of an initial surge of high pressure. The valve may be located, for example, between a high pressure gas cylinder and a medical pressure regulator. The valve is provided with first and second valves locat... | 06/07/2005 |
| 4266573 | Anesthesia machine having proportion limiting control system A system is disclosed for providing an interconnection between two needle valves such that movement of either needle valve, in opening or closing thereof, is affected or limited by movement of the other valve. The invention is particularly suited to an an... | 05/12/1981 |
