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| Number | Title | Issue Date |
| 7415864 | Orifice test device for protective mask testers An orifice test calibration device tests the functionality of protective mask testers. The orifice test calibration device has a semi-rigid tubular channel with one end for sealing the flow outlet port of the protective mask tester and a second end for sealing the v... | 08/26/2008 |
| 7369057 | Power generator and power generator auxiliary monitoring A generator monitoring system and method includes a plurality of sensors (12) disposed within a generator enclosure (18) to sense health conditions of a generator (10) housed within the enclosure. The sensors are interconnected to provide a sing... | 05/06/2008 |
| 7227621 | System for visualizing flow and measuring velocity field using X-ray particle image velocimetry A system for measuring flow information of a fluid, the system includes a light emission control unit for passing an X-ray through a specimen only at desired moments; a scintillator installed on an axis of a beam to convert an X-ray wavelength flow image, which is g... | 06/05/2007 |
| 7224455 | Measuring particulate matter in a fluid A device for measuring near forward scatter caused by particulate matter in a fluid is disclosed. The device comprises, according to various embodiments, a transceiver and a reflector. The transceiver includes a light source and a detector. The reflector is position... | 05/29/2007 |
| 6595040 | Test leak unit A test leak unit (1) includes a supply of test gas, preferably helium, and an element (14) for determining leakage rates. The aim of the invention is to create a simple, robust and easily refilled test leak unit, especially for detecting packaging leaks. ... | 07/22/2003 |
| 6192813 | Apparatus for controlling the flow rate of an air seeder An apparatus for dispensing particles includes a storage tank for containing particles to be dispensed a metering mechanism for transferring particles from the storage tank and an air distribution system for receiving particles from the metering mechanism... | 02/27/2001 |
| 5567885 | Measuring fluid flow rate A dilution technique for measuring the flow rate of a fluid stream includes injecting a tracer gas into a gas stream and then introducing the resulting tracer stock gas stream at a constant flow rate into the fluid stream. The concentration of tracer stoc... | 10/22/1996 |
| 5456102 | Method and apparatus for particle counting and counter calibration A system for counting particles entrained in a flowing fluid and for automatically calibrating the counting system is disclosed. A conduct through which a fluid carrying particles flows has a transparent section. A narrow light beam, such as a laser light... | 10/10/1995 |
| 5062291 | Calibration of flowmeters using a dissolved argon tracer technique A method and apparatus are set forth for calibration of a flowmeter in a system having a condensible fluid flowing in it. A known volume of a liquid test solution is inserted into the system flowpath upstream of the flowmeter with the solution having diss... | 11/05/1991 |
| 4860590 | Primary standard gas flow calibrator An improved primary gas flow calibrator measures the flow rate of a gas source through a fixed volume by monitoring the travel time of a liquid soap film. The device comprises a novel mechanism for generating a single film of soap across a first end of a ... | 08/29/1989 |
| 4691577 | Soap film gas flowmeter A soap film gas flowmeter comprising a hollow flow tube having opposite open ends through which a soap bubble is propelled with one open end extending into a first closed chamber housing the soap solution and the opposite open end extending into a second ... | 09/08/1987 |
