Proportioning fluids

Apparatus for proportioning and mixing two fluids comprising an hydraulic circuit including a cylinder, a piston reciprocable in said cylinder and dividing the cylinder into two chambers, means reducing the effective volume swept by said piston in one chamber to be lesser than that swept by said piston in the other chamber, first conduit means constituting an inlet for a first fluid to said one chamber and connectable to a source of said first fluid, second conduit means connecting said one chamber to said other chamber, third conduit means connected to said other chamber and constituting an outlet for mixed fluids, fourth conduit means constituting an inlet for a second fluid and connectable between a source of a second fluid and said circuit to cause said second fluid to be added to the circuit in an amount directly related to the difference in effective volumes swept by said pistons and interconnected valve means cooperating in said conduit means to permit controlled reciprocation of said piston in said cylinder, wherein said inlet for said second fluid communicates directly with said one chamber.

Apparatus for proportioning and mixing two liquids comprising an hydraulic circuit including a receptable, movable partition means within said receptacle dividing that receptacle into two chambers, means for producing reciprocation of said partition means within said receptacle alternately to expand and contract said chambers, a first liquid inlet to one of said chambers, conduit means connecting said one chamber and the other of said chambers, a second liquid inlet extending from a source of second liquid different than said first liquid to said conduit means and the liquid outlet from said other chamber, valve means associated with said first liquid inlet, said outlet and said conduit means and operable to permit controlled reciprocation of said partition means, and means effective to render the volume of first liquid delivered to said one chamber lesser than that volume required to fix the other chamber upon expansion of said other chamber whereby second liquid is induced into said other chamber through said conduit means in a volume equal to the difference in said aforementioned volumes, said valve means being effective to isolate said chambers from the source of second liquid as said one chamber expands and to connect said first liquid inlet to said one chamber as said one chamber expands

Liquid proportioning and mixing apparatus comprising a liquid filled system including a first receiving chamber receiving a predetermined volume of a primary liquid, a second receiving chamber, means connecting said chambers, means transporting liquid from said first chamber to said second chamber through said connecting means, inlet means for a secondary liquid communicating with said connecting means and means rendering the volume of said second chamber greater than said predetermined volume of primary liquid, whereby secondary liquid is delivered through said connecting means to fill, with said primary liquid, said second chamber.

Liquid proportioning and mixing apparatus comprising a source of a primary liquid and a filled system including a first receiving chamber receiving a predetermined volume of a primary liquid from said source, a second receiving chamber, means connecting said chambers, means transporting liquid from said first chamber to said second chamber through said connecting means, a source of secondary liquid, connecting means extending between said secondary source and said means connecting said chambers and means rendering the volume of said second chamber greater than said predetermined volume of primary liquid, whereby secondary liquid is delivered through said connecting means and said means connecting said chambers, to fill, with said primary liquid, said second chamber.