Fluid handling – Systems – Main line as motive fluid for follower-type feeder
Patent
1987-07-28
1988-04-12
Cohan, Alan
Fluid handling
Systems
Main line as motive fluid for follower-type feeder
285 45, 2851371, 285921, E03B 707, F16L 3900
Patent
active
047367695
ABSTRACT:
A device for introducing an additive liquid into a carrier liquid, which comprises a pipe section with a venturi in which the carrier liquid is caused to flow. A first tube has an end connected to the pipe section upstream of the venturi, while a second tube of small diameter is formed in the walls of the first tube and pipe section. The second tube has a two-branched end defining a first orifice in the pipe section downstream of the venturi and a second orifice inside the venturi. The first and second tubes comprises adjacent free ends. A third tube has an end communicating with a first compartment of a plastic bag, while a small diameter fourth tube formed within the wall of the third tube has an end communicating with a second compartment of the bag containing the additive liquid. The third and fourth tubes comprise adjacent free ends. A quick-fit connector removably and simultaneously connects together the free ends of the first and third tubes, and the free ends of the second and fourth tubes. In operation, the carrier liquid is transmitted in the bag first compartment through a pressure limiting valve mounted in the first tube. When the valve is open or closed, additive liquid is introduced in the carrier liquid through the first or second orifice, respectively.
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Cohan Alan
Rivell John
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