Titrating system

Claim 2

A CHEMICAL MEASURING SYSTEM FOR TITRATING A SAMPLE SOLUTION WITH A TITRANT CAPABLE OF REACTING WITH SAID SOLUTION TO PRODUCE AN OBSERVABLE END-POINT CHANGE, AND COMPRISING, IN COMBINATION: MEANS FOR CONTAINING A BODY OF SAID TITRANT; A HOLLOW, ELONGATED CONDUIT DISPOSED WITHIN SAID MEANS FOR CONTAINING, THE WALL OF SAID CONDUIT BEING POROUS SO THAT A NET FLOW THROUGH SAID WALL CAN OCCUR BETWEEN SAID BODY OF TITRANT AND A STREAM OF SAMPLE SOLUTION FLOWING THROUGH SAID CONDUIT; AND MEANS FOR DETERMINING THE RELATIVE POSITION ALONG SAID CONDUIT AT WHICH SAID END-POINT CHANGE IS OBSERVABLE.

Claim 3

A system as defined in claim 1 wherein said wall of said conduit is semi-permeable.

Claim 4

A system as defined in claim 2 wherein said wall is formed of a dialyzing membrane.

Claim 5

A system as defined in claim 1 wherein said conduit is substantially transparent.

Claim 6

A system as defined in claim 1 wherein said conduit is substantially translucent.

Claim 7

A system as defined in claim 1 including a color indicator material admixed with said titrant of said sample.

Claim 8

A system as defined in claim 1 wherein said means for determining comprises a scale extending along said conduit.

Claim 9

A system as defined in claim 1 wherein said conduit has a substantially uniform cross-sectioned area.

Claim 10

A system as defined in claim 1 wherein the wall of said conduit has a substantially uniform thickness.

Claim 11

A system as defined in claim 1 including means disposed in said conduit for providing turbulence to said stream in said conduit.

Claim 12

A system as defined in claim 1 including means defined in said conduit for mixing said stream with any titrant flow through said wall.

Claim 13

A system as defined in claim 1 including means for applying a substantially constant pressure head on said sample solution.

Claim 14

A chemical measuring system for continuously titrating a sample solution flow through a pipe with a titrant capable of reacting with said solution to produce an observable end-point change, and comprising, in combination: means for containing a body of said titrant; a hollow, elongated conduit disposed within said means for containing, the wall of said conduit being porous so that a net flow through said wall can occur between said body of titrant and a stream of sample solution flowing through said conduit; an internal constriction in said pipe; the ends of said conduit being connected to said pipe on opposite sides of said constriction; and means for determining the relative position along said conduit at which said end-point change is observable.

Claim 15

A chemical measuring system for continuously titrating a sample solution flow through a pipe with a titrant capable of reacting with said solution to produce an observable end-point change, and comprising, in combination: means for containing a body of said titrant; a hollow, elongated conduit disposed within said means for containing, the wall of said conduit being porous so that a net flow through said wall can occur between said body of titrant and a stream of sample solution flowing through said conduit; an internal constriction in said pipe; the ends of said conduit being connected to said pipe on opposite sides of said constriction; and means for determining the relative position along said conduit at which said end-point change is observable.

Claim 16

A chemical measuring system for titrating a sample fluid with a titrant capable of reacting with said fluid to produce an observable end-point change and, comprising in combination: first means for containing a body of said titrant fluid; second means for containing a body of said sample; at least one of the said first and second means constituting a conduit for the flow of the corresponding body of fluid therethrough; a common wall disposed between said conduit and the other of said first or second means, said wall being porous so that a net flow through said wall can occur between the body of fluid flowing through said conduit and the other body of fluid in said other means; and means for determining the relative position along said conduit at which said end-point change is observable.

Claim 17

A chemical measuring system for titrating a sample fluid with a titrant capable of reacting with said fluid to produce an observable end-point change and, comprising in combination: first means for containing a body of said titrant fluid; second means for containing a body of said sample; at least one of the said first and second means constituting a conduit for the flow of the corresponding body of fluid therethrough; a common wall disposed between said conduit and the other of said first or second means, said wall being porous so that a net flow through said wall can occur between the body of fluid flowing through said conduit and the other body of fluid in said other means; and means for determining the relative position along said conduit at which said end-point change is observable.

Claim 18

A chemical measuring system for titrating a sample solution with a titrant capable of reacting with said fluid to produce an observable end-point change, and comprising in combination; means for containing a first body of liquid; a hollow elongated conduit having a porous wall in common with said means so that a net flow through said wall can occur between said first body of liquid and a flow stream of liquid flowing through said conduit, said first body being one of said solution of said titrant, said second body being the other of said solution or said titrant; and means for determining the relative position along said conduit at which said end-point change is observable.

Claim 19

A chemical measuring system for titrating a sample solution with a titrant capable of reacting with said fluid to produce an observable end-point change, and comprising in combination; means for containing a first body of liquid; a hollow elongated conduit having a porous wall in common with said means so that a net flow through said wall can occur between said first body of liquid and a flow stream of liquid flowing through said conduit, said first body being one of said solution of said titrant, said second body being the other of said solution or said titrant; and means for determining the relative position along said conduit at which said end-point change is observable.