Apparatus for measuring liquid in the reconstitution of antibiotics

Claim 1

A device for dispensing liquid from a source of liquid having a flexible outlet supply tube, comprising: a. a substantially enclosed vessel having top, bottom and side walls; b. an inlet tube mounted in said vessel top wall for filling the vessel, said inlet tube having a first end located inside of the vessel adjacent to said side wall and a second end outside the vessel adapted for connection to the supply tube of said source of liquid; c. inlet valve means for selectively controlling liquid flow through said inlet tube; d. an air vent tube located in the top wall of said vessel for venting air to and from said vessel; e. outlet means in the bottom wall of said vessel for dispensing liquid from said vessel; f. a flexible outlet tube having first and second ends, said first end securely attached to said vessel outlet means in fixed spatial relationship with said vessel; g. outlet valve means fixably located relative to said vessel outlet means for selectively controlling the flow of liquid through said flexible outlet tube; and h. a rigid positioning tube insertable into the second end of said flexible outlet tube, the upper end of said positioning tube defining an enlarged head portion to frictionally engage the inside of the outlet tube; said positioning tube further including a shoulder portion spaced a predetermined distance from the enlarged head portion for abuttable engagement with the second end of said outlet tube to locate the positioning tube in fixed spatial relationship to said flexible outlet tube; and said outlet valve means comprising a finger operated clamp moveable between tube clamping and tube release positions, said clamp having a clamp body with a positioning recess to retainably receive the enlarged head portion of the positioning tube for retaining said clamp.

Claim 2

A device for dispensing liquid from a source of liquid having a flexible outlet supply tube, comprising: a. a substantially enclosed vessel having top, bottom and side walls; b. an inlet tube mounted in said vessel top wall for filling the vessel, said inlet tube having a first end located inside of the vessel adjacent to said side wall and a second end outside the vessel adapted for connection to the supply tube of said source of liquid; c. inlet valve means for selectively controlling liquid flow through said inlet tube; d. an air vent tube located in the top wall of said vessel for venting air to and from said vessel; e. outlet means in the bottom wall of said vessel for dispensing liquid from said vessel; f. a flexible outlet tube having first and second ends, said first end securely attached to said vessel outlet means in fixed spatial relationship with said vessel; g. outlet valve means fixably located relative to said vessel outlet means for selectively controlling the flow of liquid through said flexible outlet tube; and h. a rigid positioning tube insertable into the second end of said flexible outlet tube, the upper end of said positioning tube defining an enlarged head portion to frictionally engage the inside of the outlet tube; said positioning tube further including a shoulder portion spaced a predetermined distance from the enlarged head portion for abuttable engagement with the second end of said outlet tube to locate the positioning tube in fixed spatial relationship to said flexible outlet tube; and said outlet valve means comprising a finger operated clamp moveable between tube clamping and tube release positions, said clamp having a clamp body with a positioning recess to retainably receive the enlarged head portion of the positioning tube for retaining said clamp.

Claim 8

A device for automatically measuring and dispensing a specific quantity of liquid, comprising: a. an enclosed graduated transparent cylindrical vessel having top, bottom and side walls; b. a rigid inlet tube mounted in the top wall of said vessel, said inlet tube having a threaded end located outside of said vessel and a second end terminating inside of said vessel at a point adjacent to the vessel side wall; c. a flexible supply tube for carrying liquid from a source of liquid to said inlet tube, said supply tube having one end connected to said source of liquid and a second end connection to said inlet tube; d. a finger-operated clamp attached to said flexible supply tube for controlling the flow of liquid therethrough; e. a cylindrical vent tube extending through the top wall of said vessel for venting air flowing to and from said vessel; f. a removable filter inserted into said vent tube for filtering air flowing therethrough; g. an outlet stem mounted in the bottom wall of said vessel, said outlet stem having an outlet end and a threaded outer surface adjacent to said outlet end; h. a removable filter inserted into said outlet stem for filtering liquid passing therethrough; i. a flexible outlet tube having first and second ends, said first end securely attachable to the threaded portion of said outlet stem in fixed spatial relationship with said vessel bottom wall; j. a rigid positioning tube having a first end with an enlarged head portion adjacent thereto, and a shoulder portion spatially removed from said head portion, said head portion insertable in the second end of said flexible outlet tube with said shoulder portion abutably engaging the second end of said flexible outlet tube; and k. a finger-operated clamp comprising a clamp body having at least two opposed wall portions movable towards one another, said flexible outlet tube insertable between said movable wall portions, said clamp body further defining a positioning recess sized to accommodate the enlarged head portion of said positioning tube to thereby locate said finger-operated clamp in fixed spatial relationship with respect to said positioning tube.

Claim 9

A device for automatically measuring and dispensing a specific quantity of liquid, comprising: a. an enclosed graduated transparent cylindrical vessel having top, bottom and side walls; b. a rigid inlet tube mounted in the top wall of said vessel, said inlet tube having a threaded end located outside of said vessel and a second end terminating inside of said vessel at a point adjacent to the vessel side wall; c. a flexible supply tube for carrying liquid from a source of liquid to said inlet tube, said supply tube having one end connected to said source of liquid and a second end connection to said inlet tube; d. a finger-operated clamp attached to said flexible supply tube for controlling the flow of liquid therethrough; e. a cylindrical vent tube extending through the top wall of said vessel for venting air flowing to and from said vessel; f. a removable filter inserted into said vent tube for filtering air flowing therethrough; g. an outlet stem mounted in the bottom wall of said vessel, said outlet stem having an outlet end and a threaded outer surface adjacent to said outlet end; h. a removable filter inserted into said outlet stem for filtering liquid passing therethrough; i. a flexible outlet tube having first and second ends, said first end securely attachable to the threaded portion of said outlet stem in fixed spatial relationship with said vessel bottom wall; j. a rigid positioning tube having a first end with an enlarged head portion adjacent thereto, and a shoulder portion spatially removed from said head portion, said head portion insertable in the second end of said flexible outlet tube with said shoulder portion abutably engaging the second end of said flexible outlet tube; and k. a finger-operated clamp comprising a clamp body having at least two opposed wall portions movable towards one another, said flexible outlet tube insertable between said movable wall portions, said clamp body further defining a positioning recess sized to accommodate the enlarged head portion of said positioning tube to thereby locate said finger-operated clamp in fixed spatial relationship with respect to said positioning tube.