Fluid handling – Systems – Programmer or timer
Patent
1981-01-07
1982-12-21
Cohan, Alan
Fluid handling
Systems
Programmer or timer
73223, 73861, 222 3, G01F 134
Patent
active
043644139
ABSTRACT:
An apparatus for controlling the volume of flow of a gas. A reference volume has an input conduit connected to the source of gas and an output conduit connected to a utilization device. Valves in the input and output conduits are cyclically controlled to permit pressure in the reference volume to reach a high and then to attain a low. The reference volume pressure is measured twice during each cycle to provide voltages representative of the high and low pressures. Circuit means control the time and duration of operation of the valves to cause the difference between the high and low pressures to equal a predetermined value.
REFERENCES:
patent: 3115038 (1963-12-01), Babson
patent: 3744306 (1973-07-01), Krueger
patent: 3875626 (1975-04-01), Tyrk
patent: 4285245 (1981-08-01), Kennedy
Bersin Richard L.
Clouser William H.
Cohan Alan
Giarratana S. A.
Grimes E. T.
Murphy T. P.
The Perkin-Elmer Corporation
LandOfFree
Molar gas-flow controller does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Molar gas-flow controller, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Molar gas-flow controller will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-402187