A collapsible cup has a tubular body having an upper end and a lower end, centered on an axis, and formed with a plurality of helicoidal ridge formations spaced angularly around the tubular body and each extending between the ends of the body. A floor of greater rigidity than the body closes the lower end of the body. A ring reinforces the upper end of the body. The body and ridges are formed of an elastically deformable synthetic resin such opposite angular twisting of the upper and lower ends axially compresses together the upper and lower ends and moves upper end down close to the lower end.

A flexible structure may be configured to expand a collapsible flask. The flexible structure may include a first loop made of an elastically flexible material and a second loop made of an elastically flexible material. The first loop and the second loop may be operatively coupled together at a first intersection and a second intersection. The first loop and the second loop, together, may be elastically movable between a compressed configuration in which the first loop and the second loop are sufficiently narrow to fit through an opening of the collapsible flask, and an expanded configuration in which the first loop and the second loop are not sufficiently narrow to fit through the opening.

A collapsible travel bottle comprising a flexible main body comprising an inner space for receiving a liquid therein, the main body including an upper portion, a middle portion, and a lower portion, an opening in the upper portion in communication with the inner space to allow receiving and discharging of the liquid within the flexible main body, a rigid collar coupled to the upper portion proximate the opening, a rigid cap coupled to the rigid collar to restrict receiving and discharging of the liquid within the flexible main body through the opening, the middle portion configured to enable both the top portion and the middle portion to collapse fully into the bottom portion.

A collapsible container is provided, which includes an inner cup made of a soft waterproof material, an outer retractable cup, and an assembly kit for allowing the inner cup to be detachably mounted in the outer cup. The outer cup can be extended or contracted in height, making the collapsible container easy to carry. The inner cup can be detached for cleaning, making the collapsible container easy to use and provide good hygiene. Such a collapsible container is especially suitable for traveling use.

A collapsible container (1) for liquids and the like comprising: two deformable membranes (2) placed side by side along an intermediate plane (2a) and comprising a plurality of mutually bound edges (3) able to define a housing volume for liquids and an aperture (4) made by two mutually unbound edges and able to form an inlet for liquids, the membranes (2) defining a rest configuration in which they are close to the mutual contact along the intermediate plane (2a) and a working configuration, elastically deformed and having an arrow in the direction of mutual removal, by defining a containment volume for liquids and the like, in which the deformable membranes (2) have a shape tapering from said aperture (4) to said opposed end (5).

A portable pet canteen having a flexible bladder with peripheral edges and defining a footprint, an upper wall of the bladder defining an upper mouth, and a cavity being formed within the bladder. A rigid inner scaffold is secured to the upper mouth of the bladder and extends into the cavity. The inner scaffold has a height defined by side walls, the side walls having apertures for passage of water. An upper lid secures to an upper edge of the rigid inner scaffold such as with mating threads to form a closure such that the portable pet canteen is watertight. Water may be retained within the bladder until such time as the upper lid is removed and the canteen placed on the ground for the pet to drink from within the inner scaffold which provides a relatively wide opening. The canteen may be placed within a flexible outer cover for protection, which can also have various handles or straps for ease of transportation.

A cylindrical bottle which collapses along helical groove, ridge and connecting rings along its sidewall. When inward force is applied along the bottle's vertical axis, the helical groove rings and connecting rings fold under the ridge rings and remain substantially “locked” under the ridge rings, thereby causing the sidewall to collapse and remain collapsed until sufficient outward force is applied. When sufficient outward force is applied along its vertical axis, the bottle extends as the distance between its helical groove rings and ridge rings lengthens. Due to the diamond-shaped cross-section of the connecting rings, in conjunction with the silicone composition of the bottle's body, the collapsing and extension of the bottle occur in sequential segments, creating a unique, playful sound and an amusing worm-like movement.

A collapsible jug includes an upper member defining an opening and having a spout at a first side of the upper member. The jug has a lower member defining a base, and a collapsible side wall extending between the upper and lower members. The jug has a link that has a first end pivotally attached to the upper member at a second side of the upper member. The container is alterable between a collapsed configuration wherein the side wall is collapsed and a second end of the link is releasably attached to the spout such that the lower member is releasably retained between the link and the upper member and an in-use configuration wherein the side wall is extended and the second end of the link is releasably attached to the lower member such that the upper and lower members are releasably retained in a spaced apart configuration.

It is common for the organizers of endurance sports to provide aid stations along the route where participants may receive water to prevent dehydration. To reduce waste at these events, organizers encourage ‘cupless’ races that requiring participants to carry their own vessels. The present invention comprises a hat with a visor, such as a baseball style cap, with a collapsible drinking vessel integrated into the visor. During the course of the race, a runner may encounter a water stop and require a vessel to contain the liquid for immediate consumption. At such time the runner can simply remove their hat and configure the vessel to the open position to receive the liquid. Post-consumption the vessel is configured back to the closed position and becomes seamlessly integrated into the visor with no negative effects upon the runner.

A foldable cup provided with a reinforcing structure includes: a cup body, a shape-fixing ring nested on the opening of the cup body, and a cup cap fitted to the shape-fixing ring. When the cup body is deformed due to the effect of force, the side wall of the cup body is prevented from experiencing a large twist due to the deformation of the opening of the cup, thereby effectively alleviating the disadvantages of an existing foldable cup: the existing foldable cup easily topples and falls due to the deformation of the opening of the cup, causing a liquid in the cup to be splashed. Further, when the side wall of the cup body is extruded, the liquid in the cup does not flow out from the joint position between the shape-fixing ring and the cup cap, thereby improving the practicability of the foldable cup.