Fluent material handling – with receiver or receiver coacting mea – Processes – Plural materials
Patent
1997-05-30
1998-10-27
Douglas, Steven O.
Fluent material handling, with receiver or receiver coacting mea
Processes
Plural materials
141 83, 141 94, 141105, 137 3, 137 93, B65B 104, B65B 304
Patent
active
058266321
ABSTRACT:
A system for filling gas cylinders with a gas mixture having a desired gas composition which includes (a) a gas conduit whose inlet end is connected to two or more gas component supply lines, each provided with a flow adjustment device, and whose outlet end is connected to a gas cylinder filling system, and which is equipped with a gas analyzer, a cumulative gas flow measuring device and, upstream of the gas analyzer, a gas mixing device; and (b) a controller which has provision for receiving signals from the flow measuring device and the gas analyzer and for sending signals to each flow adjustment device. A method of filling gas cylinders with given quantities of the gas mixtures which includes cumulatively measuring the quantity of gas flowing through the conduit, periodically analyzing the gas mixture flowing through the conduit, periodically sending cumulative gas flow information signals and gas analysis signals to the system controller, and periodically sending flow adjustment signals to the flow adjustment devices to minimize the difference between the actual gas composition and the desired gas composition.
REFERENCES:
patent: 3948281 (1976-04-01), Strain et al.
patent: 5495875 (1996-03-01), Benning et al.
Cosey Lesli B.
Micke Andre
Douglas Steven O.
Pace Salvatore P.
Reap Coleman R.
The BOC Group Inc.
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