A fluid container includes a vessel for holding a fluid, a marker element, and a scale element. The scale element has a scale for indicating a total quantity of the fluid. The marker element and the scale element are adjustable relative to each other to enable an adding up of amounts of fluid and thereby indicate the total quantity of the fluid. The marker element and the scale element are held together by magnetic force and may be detached from each other.
The present invention provides an adjustable portable liquid gauge that allows a person to quickly pour a precise amount of liquid directly into a glass and adjust the height of the adjustable liquid gauge to accommodate glasses of varying dimensions and/or varying amounts of liquid. In an embodiment, the adjustable liquid gauge comprises a top member having at least one inward curved edge dimensioned to fit around a portion of a glass, and a bottom member that slidably engages the top member. This sliding engage allows the top member to slide with respect to the bottom member to adjust the height of the liquid gauge. The adjustable liquid gauge further comprises one or more adjustment fasteners for adjustably locking the top member in place with respect to the bottom member when the liquid gauge is adjusted to a height corresponding to a desired glass and amount of liquid.
The present invention discloses a beverage cup that comprises a cup body, and a lid. The lid comprises a hinged plug insert, which covers the drinking port in the lid, a window and a counter means. The counter means comprises a disc that protrudes through the outer circumference of the lid in such a way that the user can rotate the disc. The disc is printed with symbols or numbers, one of which is visible at a time through the window in the lid. Different symbols or numbers on the disc are visible through the window as the disc is rotated.