G - Physics – 05 – D
Patent
G - Physics
05
D
73/117, 50/2
G05D 11/00 (2006.01) B01F 5/04 (2006.01)
Patent
CA 1049788
ABSTRACT Apparatus for use in controllably injecting contaminant material into a liquid flowing through a conduit in a liquid flow system. The apparatus has a reservoir section and an injection section with a central section optionally provided for interposing between the reservoir section and the injection section when low and/or slow rates of injection are desired. The reservoir section is a graduated tubular member having a detachable cap with an adjustable pressure relief valve mounted therein. The reservoir chamber merges, at the opposite end, into a truncated conically shaped portion in a body detachably mountable on the injection section or intermediate section, as the case may be. When mounted on the injection section, the reservoir chamber communicates with a passage in the injection section that gradually decreases in cross-sectional area toward a restricted opening communicating with a flow passage through the injection section and which flow passage is connectable in line with the conduit of the fluid flow system. An adjustable valve is provided for varying the rate of flow through the restricted discharge outlet. A passage is provided for supply a pressurized fluid to the passage adjacent, but upstream from, the flow control valve to pressurize the reservoir chamber and mix contaminant therein with liquid in the reservoir. The central section provides an intermediate chamber between the reservoir chamber and the injection section and is in communication with the reservoir chamber through an adjustable flow contro valve.
279489
Maidment Peter E.
Thouin Marcel
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