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 |
| 5660207 | Flow controller, parts of flow controller, and related method A mass fluid flow controller has a valve which is controlled by a controller rod which is substantially pivotally mounted on a metallic diaphragm which stretches and unstretches with the movement of the rod. The actuation of the rod movement is by the exp... | 08/26/1997 |
| 5396803 | Dual balanced capacitance manometers for suppressing vibration effects A sensor measures an unknown pressure having to a sensitivity on the order of 1 micro-torr. The sensor includes two 10 micro-torr sensitivity capacitance manometers which each receive the unknown pressure. The capacitance manometers are positioned about a... | 03/14/1995 |
| 5118078 | Butterfly valve having improved sealing characteristics A fully sealing butterfly valve throttles flow rates through a flow channel and completely ceases flow. A throttle plate rotates into a close position and then moves axially to seat against a seal. The axial movement directly corresponds to rotation of an... | 06/02/1992 |
| 5088774 | Coupling for interconnection of coaxial tubing A interconnection system for coaxial fluid tubing includes zero-clearance connectors having a metallic innner gasket for sealing an inner passageway for a first fluid and having a elastomeric outer gasket for sealing an outer passageway for a second fluid... | 02/18/1992 |
