"The Americans have need of the telephone, but we do not. We have plenty of messenger boys."
Sir William Preece, chief engineer, British Post Office ; 1878
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| Number | Title | Issue Date |
| 6953044 | Drained water recovery system and method for operating the same A drained water recovery system of a process device and recovering method thereof is provided. The recovering method includes using a conductivity meter to measure the conductivity of the drained water so that the drained water with different degrees of conductivity... | 10/11/2005 |
| 6932102 | Device for regulating the flow rate and/or the pressure of a fluid The present invention relates to a device for regulating the flow rate and/or the pressure of a fluid transferred from a high-pressure reservoir (H) to a reservoir (S). A first valve (1) provided with a control (2) is mounted in a pipe (10, 11, 12 | 08/23/2005 |
| 4979639 | Beverage dispenser control valve and ratio control method therefor A multiflavor beverage dispenser comprises a microprocessor system for controlling the ratio of diluent to concentrate of a post-mix beverage. The system includes a compact flow rate control module for selectively controlling the flow rates of liquids in ... | 12/25/1990 |
| 4335736 | Double piping type hydraulic pressure control device A double piping type hydraulic pressure control device in which hydraulic pressure control of a hydraulic pressure channel A is transmitted to another channel B in such a manner that the hydraulic pressure to be exerted on a balance piston for hydraulic p... | 06/22/1982 |
| 4270613 | Fire and explosion detection and suppression system A fire and explosion suppression system which is operative for suppressing an explosion within 100 milliseconds of the existence of a high energy ignition and within 200 milliseconds of the existence of a low energy ignition. Respective output signals fro... | 06/02/1981 |
| 4263971 | Fire and explosion suppression apparatus Suppression apparatus comprises a plurality of pressurized containers of fire extinguishing material arranged in the troop and/or engine compartment of an armored vehicle, the containers having pressure sensors which provide output indications of their op... | 04/28/1981 |
| 3938369 | Arrangement for controlling the viscosity of a fluid A constant output pump delivers a portion of a fluid, the viscosity of which is to be controlled, into a measuring capillary tube to develop a pressure differential across the measuring capillary tube. Means are provided to sense the pressure differential... | 02/17/1976 |