Multi-liquid flow proportioning device
OwnerHarry T. Fenwickinventor
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Abstract
This invention concerns a multi-liquid flow proportioning device comprising a vessel adapted to contain a first liquid, a container within said vessel adapted to hold a second liquid separate from said first liquid, separate inlet and outlet means respectively for the portion of said vessel adapted to contain said first liquid and for said container, said container including a wall portion adapted to move in use in resopnse to changes in pressure of its liquid contents, and means operable by the movement of said wall portion to control the liquid flow into the inlet of said container whereby tending to maintain the volumetric contents thereof generally constant. The invention has particular application to combining water and fire retardant.
Claims9
A liquid flow proportioning device comprising a vessel for containing a first liquid, a container within said vessel for holding a second liquid separate from said first liquid, separate inlet and outlet means respectively for the portion of said vessel for containing said first liquid and for said container, said container including a flexible wall portion which moves in use in response to changes in pressure of its liquid contents and changes in level of said first liquid, said flexible wall portion being sealingly attached to side wall portions of said vessel, whereby said container is defined by portions of said vessel's side walls, the base surface thereof, and said flexible wall portion, and means operable by the movement flexible of said wall portion to control the liquid flow into the inlet of said container whereby tending to maintain the volumetric contents thereof generally constant.
Dependencies are inferred from the claim text.