Abstract: A beverage filter or treatment bottle system has a bottle, lid, and a beverage improvement component such as a filter element. A filter element may be positioned to separate the interior space of the bottle into a filtered beverage compartment and an unfiltered beverage compartment. A tube passes through the filter into fluid communication with the filtered beverage compartment. The tube extends through the unfiltered beverage compartment to a nozzle in the lid of the bottle. A lid cover is fastenable onto the lid to enclose and close the nozzle. A filter cartridge may be provided. A UV sterilizer may be provided. An air bypass may be provided.

Abstract: A stopper for a beverage container is described. The stopper includes a stopper main body that is attached to an upper opening of a beverage container main body and includes a liquid through hole on the inside thereof; and a lid that is axially supported by a hinge shaft that is provided at an end of the stopper main body, and which opens and closes the liquid through hole in a rotational manner; the hinge shaft connects a hinge portion of the stopper main body, and right and left hinge portions of the lid; a storage portion is provided on at least one of the right and left hinge portions of the lid, and the hinge portion of the stopper main body; at least one end of the storage portion in the axis direction of the hinge shaft forms an opening; and a torsion spring is stored in the storage portion, and a cover member covers the opening of the storage portion.

Abstract: The object of the present invention is to provide a metal container washing apparatus which can obtain hydrogen peroxide for generating hydroxyl radicals and electrolytes using a simple configuration and a simple method and which is small and has excellent portability and storability, and the present invention provides a washing apparatus that washes a metal container of the present invention includes a negative electrode that applies a negative voltage to a metal container to which a washing solution, in which a hydrogen peroxide generating agent generating hydrogen peroxide when dissolved in water is dissolved, is added; a positive electrode that applies a positive voltage to the washing solution; and a power supply that applies a voltage between the negative electrode and the positive electrode, and the inner surface in the container is washed with hydroxyl radicals generated at the time of application of the voltage.