Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 7934413 | Flowmeter calibration system and operational method Disclosed is a bi-directional piston displacement type volumetric fluid flow rate delivery and metering system (calibration standard) and operational method for calibration of fluid flowmeters. The present invention provides reduced uncertainty of delivered volumetr... | 05/03/2011 |
| 7350423 | Real time usage monitor and method for detecting entrapped air A dispensing system for feeding paste through a screen onto a workpiece monitors the position of a piston applying pressure to the paste with a linear variable differential transformer and sets limits on the slope of the piston displacement is a measure of the feed ... | 04/01/2008 |
| 7192486 | Clog-resistant gas delivery system Processing gases reactive with each other are provided in parallel to a processing chamber through separate delivery lines including mass flow controllers devoted to each line. The parallel delivery lines meet in a mixing manifold located proximate to the processing... | 03/20/2007 |
| 7024929 | Flow stabilizer for flow bench Apparatus and methods for airflow testing, especially for air testing of gas turbine components on an airflow test bench. Various embodiments of the present invention include the use of a flow-stabilizing member downstream of the component being tested. Since the fl... | 04/11/2006 |
| 5526674 | Method and apparatus for improved flow rate measurement and calibration A method and apparatus for precise measurement and calibration of gas flow rates is described. The apparatus and method employ precision-bored cylinders adapted for operation with ultrasonic transducers under the control of computer subroutines for accomp... | 06/18/1996 |
| 4938054 | Ultrasonic linear meter sensor for positive displacement meter A positive displacement meter for measuring the volume of liquid dispensed over a given period of time includes at least one pair of pistons moving in counter opposition to one another within a pair of cylinders, an acoustical transducer located through a... | 07/03/1990 |
| 4794785 | Apparatus for determining the characteristic of a flowmeter A fluid displacement measuring cylinder has near its ends, respectively, an inlet and an outlet. A fluid displacement measuring piston is adapted to travel through the measuring cylinder as a fluid barrier. A control piston having first and second sides i... | 01/03/1989 |
| 4766759 | Apparatus and method for determining the flow characteristic of a volumetric flowmeter A mechanical displacement flowmeter calibrator has a first fluid line external of the measuring cylinder of the calibrator connected between the inlet and outlet thereof. A flowmeter that produces flow-representative pulses is connected in the fluid line.... | 08/30/1988 |
| 4718267 | Meter provers A meter prover comprises an upstream chamber (1) with a port (2) a downstream chamber (3) with a port (4) either port for connection to a meter (not shown) to be proved, a stationary seal (5) between the two chambers, a piston body (6) within and bridging... | 01/12/1988 |
| 4674317 | Apparatus for determining the flow characteristic of a volumetric flowmeter A mechanical displacement flowmeter calibrator has a first fluid line external of the measuring cylinder of the calibrator connected between the inlet and outlet thereof. A flow meter that produces flow-representative pulses is connected in the fluid line... | 06/23/1987 |
| 4628724 | Meter provers A meter prover comprises a cylinder (16) having a proving bore (22) and enlarged end chambers (20). A piston (12) is mounted within the cylinder for movement along the bore in sealed engagement therewith, the axial length of the piston exceeding that of t... | 12/16/1986 |
| 4627267 | Apparatus and method for determining the flow characterstic of a volumetric flowmeter A mechanical displacement flowmeter calibrator has a first fluid line external of the measuring cylinder of the calibrator connected between the inlet and outlet thereof. A flowmeter that produces flow-representative pulses is connected in the fluid line.... | 12/09/1986 |
| 4549426 | Compact flow prover A compact flow prover for calibrating continuous flowmeters includes a measuring housing comprising a main cylinder having a substantially uniform inside diameter and inlet and downstream sections having inside diameters greater than the main cylinder. Th... | 10/29/1985 |
| 4152922 | Apparatus and method for determining the characteristic of a flowmeter A measuring cylinder has at its ends an inlet and an outlet connected in a fluid system in series with a flowmeter. A measuring piston is adapted to travel through the measuring cylinder as a fluid barrier. A poppet valve on the inlet side of the measurin... | 05/08/1979 |
