An engaging structure for a container and its cover has a containing body and a corresponding covering member. The upper opening of the containing body has an outer lip edge, the opposing positions of the outer lip edge is provided with at least two the engaging portions. The outer edge of the engaging portion has with a movable buckle, the outer periphery of the covering member is provided with a covering lip covering the outer lip edge of the containing body, and the opposing positions of the periphery of the covering lip has at least two the locking portions corresponding to the engaging portion of the containing body. A locking protrusion is disposed on the locking portion, locking portion of the covering member is corresponding to each engaging portion of the containing body. By flipping the movable buckle, each the engaging curve can be fastened tightly to each locking protrusions.

A waterproof container is provided, the waterproof container including a base portion, the base portion having a base; an outer wall extending from the base; and an inner wall disposed inwardly from the outer wall, thereby forming a channel between the inner wall and the outer wall; and a lid portion, the lid portion having: a slot within the lid portion; and a seal configured to fit within the slot, the seal including a groove therein, wherein the groove of the seal is configured to accept an end of the inner wall therein when the lid portion is affixed to the base portion.

A rim assembly for a container comprises a frame member (346) having a perimeter corresponding in shape to an opening of a container such that, in use, the frame member is received within the opening and extends around an interior surface of a side wall of the container; a plurality of securing tabs (394) hingedly connected to the frame member (346), each tab (394) including an engagement member (396); sealing means configured for repeated sealing engagement with a lid of the container; and retaining means (399), wherein each of the securing tabs is movable between a first position in which the engagement member is disengaged from an aperture (317) in the container side wall and a second position in which the engagement member (396) is engaged with one of the apertures (317) in the side wall, and wherein the retaining means is configured to retain the securing tabs in the second position such that the rim assembly is secured to the container around a top edge of the side wall.

An accessory includes a container band having an inner surface configured to conform to and engage an outer surface of a container, and an arm member connected to and extending from the container band. The arm member selectively engages a lid of the container. The arm member includes an arm body, a spout plug extending from the arm body, where the spout plug is configured to selectively seal a spout opening in the lid of the container, and a vent cover extending from the arm body, where the vent cover is configured to selectively seal a vent opening of the lid of the container.

An embodiment of a container may include a cap and a body. The body may include a bottom and body walls extending from the bottom from proximal ends of the body walls to distal ends of the body walls. The body walls may have a channel disposed within the body walls and proximate the distal ends of the body walls. The channel may have a floor, an opening proximate the distal ends of the body walls, an inner wall including an upper inner rim disposed a first distance from the bottom of the body, and an outer wall including an upper outer rim disposed a second distance from the bottom of the body. The second distance may be greater than the first distance relative to the bottom of the body. The channel may be sized to receive a portion of the cap when the container is in a closed position.

A modular robot system which may be configured to accommodate packages of varying sizes is provided. The modular robot may include a base have omni-directional wheels and cameras and sensors, one or more modular containers, and a lid, which may be releasably linked together to form a small, medium or larger units. The base, one or more modular containers, and the lid may be electrically linked to provide information to be used in a number of ways. For example, the electrical link may allow two or more modular robots to communicate with each other, enable external displays of multiple modules to act as one large unit, control the motion of the drawers, e.g., allowing them to open/close, and allow the processor(s) in the lid to communicate with the drive system of the omni-directional wheels. A set of alternating interlocking rails and tracks on corresponding surfaces enable the various layers of the modular robot to interlock with one another. Interlocking of multiple modular containers may be established by sliding one surface over the other. These sections may be used to create modular robots of varying sizes.

A packaging assembly includes a container body defining an interior for housing a product and an opening leading to the interior. The assembly further includes a cap that moves with respect to the container body to move the assembly between a closed position in which the cap covers the opening, and an opened position in which the opening is exposed. A first seal (40) is defined between the container body and the cap. The first seal includes a protrusion (42) formed on one of the container body about the opening or the cap, and a groove (44) formed on the other of the container body about the opening or the cap. The protrusion is received by the groove when the assembly is in the closed position, such that contact is maintained in a sealing relationship around the opening between the groove and the protrusion.

A packaging assembly includes a container body defining an interior for housing a product and an opening leading to the interior. The assembly further includes a cap that moves with respect to the container body to move the assembly between a closed position in which the cap covers the opening, and an opened position in which the opening is exposed. A first seal (40) is defined between the container body and the cap. The first seal includes a protrusion (42) formed on one of the container body about the opening or the cap, and a groove (44) formed on the other of the container body about the opening or the cap. The protrusion is received by the groove when the assembly is in the closed position, such that contact is maintained in a sealing relationship around the opening between the groove and the protrusion.

A storage container comprised of a container bottom, and with multiple sealable covers, configured to connect the covers to the container bottom in both open and closed arrangements. Additionally, each of said covers will seal to the container bottom, and each of said covers will seal to an opposing cover. The containers may be proportioned to stack or nest into other open containers, as well as on top of containers with closed covers. The containers may also allow open covers to rest vertically alongside the container without significantly contacting the surface the container is resting on.

A packaging assembly includes a container body defining an interior for housing a product and an opening leading to the interior. The assembly further includes a cap that moves with respect to the container body to move the assembly between a closed position in which the cap covers the opening, and an opened position in which the opening is exposed. A first seal (40) is defined between the container body and the cap. The first seal includes a protrusion (42) formed on one of the container body about the opening or the cap, and a groove (44) formed on the other of the container body about the opening or the cap. The protrusion is received by the groove when the assembly is in the closed position, such that contact is maintained in a sealing relationship around the opening between the groove and the protrusion.