Various embodiments concern a handheld beverage container. The beverage container includes a vacuum chamber located radially between an inner tubular sidewall and an outer tubular sidewall and axially between an inner bottom wall and an outer bottom wall. The combined heat capacity of both of the inner tubular sidewall and the inner bottom wall can be greater than the combined heat capacity of both of the outer tubular sidewall and the outer bottom wall such that a vacuum insulated thermal reserve is formed. Heat can be exchanged between the thermal reserve and the beverage to stabilize the temperature of the beverage to counteract ambient cooling/heating of the beverage. Various embodiments concern a cap that seals with a disposable cup that is held within a container body, allowing a beverage to be contained in the disposable cup while being insulated by the container body, with or without a thermal reserve.

A reusable cup lid may be configured for attachment to a beverage container. The cup lid may define a body housing a battery, motor and fan operably connected. A removable cover may include a control circuit with an LED display operably connected to settings and programming buttons. The cup lid may include a drinking port and a venting channel. A charging/external power port may provide for connection directly to an external power source for charging or powering the cup lid. An attachment member may be mounted on the rim of a cup providing a watertight seal. The cup lid may be removably connected to the attachment member.

A rapid beverage cooling device and a refrigeration method thereof are provided. The rapid beverage cooling device includes an outer cup body and an inner cup body of which rims are connected. An interlayer inner cavity for storing a liquid is formed between the outer cup body and the inner cup body; a liquid injection port communicated with the interlayer inner cavity is made at a bottom of the outer cup body; the liquid injection port can be opened or sealed; a liquid accommodating cavity is disposed in the inner cup body; a convex column extends toward the liquid accommodating cavity from a wall of the inner cup body; and an inner cavity of the convex column is communicated with the interlayer inner cavity.

A beverage container assembly including a cup and a lid. The cup includes an outer wall and an inner wall. The cup may have a double truncated cone shape. The lid includes a spout for drinking a beverage held in the cup and a number of holes that allow aroma to escape from the cup. The cup includes an internal protrusion that aids in mixing the beverage.

Systems and methods for coating one or more surfaces of a drinking container with diamond-like carbon. The systems and methods may position a metallic structure of a container into electrically-conducting contact with a first electrode, and use a probe that combines an electrode and gas channel to introduce a precursor gas into an internal compartment of a container for enhanced surface coating of the metallic structure.

A collapsible vessel for containing fluid comprises at least two interconnected tubular sections which are configured to move axially with respect to each other upon application of a substantially axial force thereto. The vessel is manipulatable between a collapsed configuration in which the sections are substantially nested to form a tube having a first length and an extended configuration in which the sections form a continuous tube having a second length which is greater than the first length. The vessel comprises locking means configured to be reversibly locked while the vessel is in the extended configuration upon the application of a rotational force to at least one section.

An apparatus for heating beverages is disclosed. The apparatus includes a base and a container for holding liquids. The base has a heater plate that is heated by one or more heater elements attached to the heater plate. A power source in the base provides electricity to the heater elements. The base is removably attachable to the container. The container has an inner cup that sits inside a chassis. The inner cup is made of metal and has an open top for receiving liquid, a circumferential wall, and a closed bottom. The chassis has an open top for receiving a liquid, a circumferential wall, and an open bottom. When the container is attached to the base, the closed bottom of the inner cup is configured to contact the heater plate and receive heat from the heater plate.

A container having fluid container inner body positioned within an outer body having a lower end wall with an aperture. An interior chamber is formed between sidewalls of the inner and outer bodies. A flexible and resilient stopper removably positionable in the aperture in fluid-tight sealing engagement with the end wall. A stiffening member is removably positionable within a cavity of the stopper after the stopper is positioned in the aperture to provide rigidity to the stopper to resist bending of the stopper and thereby resists unintentional dislodgement of the stopper from the aperture without first removing the stiffening member from the stopper.

A beverage containment apparatus includes a cylindrical body, a lid, and a splash guard. The body has one or more walls, a sloping lip at an opening on one end, an interior portion of the body, and a base. In some embodiments, the sloped lip forms a circular arc or a parabolic arc. The lid has a closed end and an open end on an opposite side of the closed end. The open end is configured to detachably couple to the body. The splash guard is configured to detachably couple to the interior portion of the body proximate to the sloping lip. The splash guard includes a plurality of apertures spaced around an outer circumference of the splash guard. In some embodiments, the splash guard includes a center aperture sized to fit a user's finger.

A spill resistant beverage container assembly for spill free beverage consumption includes a cup and a lid that is complementary to a top of the cup so that the lid is positioned to be selectively coupled to the cup to sealably close the top. The lid comprises a sidewall that is coupled to and extends between an upper plate and a lower plate to define an interior space. An aperture is positioned in the lid proximate to a circumference of the lid. A detection and access module that is coupled to the lid and positioned in the interior space is configured to detect motion in proximity to the aperture, positioning the detection and access module to open the aperture so that the aperture is configured to allow sipping of a beverage that is positioned in the cup.