Metered, blending portable beverage container

1. A beverage bottle comprising:

a fluid container for receiving and dispensing a volume of beverage liquid and sealingly closed by a cap;

a liquid beverage flavor enhancer receiving and storage chamber, wherein said receiving and storage chamber nest within said fluid container, and wherein said beverage flavor enhancer receiving and storage chamber comprises a reservoir cup said reservoir cup has an inner sidewall forming a series of threads and a vertically linear guide;

a metering assembly adapted for dispensing incremental and multiple measured amount of liquid beverage flavor enhancer from the receiving and storage chamber and into said fluid container, wherein said metering assembly cooperatively engages with said receiving and storage chamber, and said metering assembly comprises a removable plunger assembly and a main lid assembly, said plunger assembly is formed to be nestingly received within the reservoir cup, said plunger assembly further having a sealing stopper terminating at a lower end by a plunger head;

said plunger head is sealingly received within the inner volume and against the inner sidewall of the reservoir cup;

wherein a beverage liquid can thereby be incrementally infused with a liquid beverage flavor or nutrient enhancer by a user for the purposes of creating a flavored or fortified beverage.

2. The beverage bottle of claim 1 , wherein an outer circumferential edge of the plunger head is received between adjacent threads when the sealing stopper is rotated.

3. The beverage bottle of claim 2 , wherein said metering assembly is adapted such that upon one complete rotation of the sealing stopper causes the reservoir cup to be pulled towards the sealing stopper, and thereby causes displacement of any fluid volume therein through a valve.

4. The beverage bottle of claim 3 , wherein said valve comprises a diaphragm valve.

5. The beverage bottle of claim 3 , further comprising an index guide formed into and protruding from sidewalls of the sealing stopper, wherein said index guide nests into and is guided by the vertically linear guide.

6. The beverage bottle of claim 5 , wherein rotation of the sealing stopper by a knob terminating the upper end of the stopper is used to meter a displaced volume of contained liquid from the reservoir cup.

7. The beverage bottle of claim 1 , wherein said reservoir cup fits down within the cap and the removable plunger assembly is retained by the cap.

8. In the reusable and portable beverage bottle, the improvement comprising a nesting reservoir system for containing and dispensing metered amounts of liquid beverage enhancer, whereby multiple metered doses can be dispensed, with multiple refilling of the drinking vessel and wherein said reservoir systems comprises:

a reservoir cup having an inner sidewall forming a series of threads and a vertically linear guide; and

said plunger assembly is formed to be nestingly received within the reservoir cup, said plunger assembly further having a sealing stopper terminating at a lower end by a plunger head; wherein said plunger head is sealingly received within the inner volume and against the inner sidewall of the reservoir cup.

9. In the reusable and portable beverage bottle claim 8 , wherein an outer circumferential edge of the plunger head is received between adjacent threads when the sealing stopper is rotated such that upon one complete rotation of the sealing stopper causes the reservoir cup to be pulled towards the sealing stopper and thereby causes displacement of any fluid volume therein through a valve controlling egress from a bottom of the reservoir.

10. In the reusable and portable beverage bottle claim 9 , further comprising an index guide formed into and protruding from sidewalls of the sealing stopper, wherein said index guide nest into and is guided by the vertically linear guide.