A tamper-evident container including: a container body having a first hollow convex loop on a periphery of an opening thereof; and a lid having a second hollow convex loop and a force application structure, where the second hollow convex loop is used to engage with the first hollow convex loop, and a loop-shaped breakable line is provided on a loop-shaped top surface of the second hollow convex loop; where, when an illegitimate user applies a lifting force on any local area of the second hollow convex loop of the lid to make the local area moving upward with a displacement exceeding a threshold, a corresponding local area of the loop-shaped breakable line will be broken to show that the tamper-evident container has been tampered with.

An expandable bowl has an open top and a plurality of configuration changing side members connecting the open top to a base member. The configuration changing side members are designed to allow a user to pull the base member to changing the side members from a collapsed configuration to an expanded configuration, thereby increasing the overall volume of the bowl. The expandable bowl may be useful for various products, such as pre-packaged salads, where the salads may be packaged and displayed in the collapsed configuration, thereby minimizing shelf space, and may be changed to the expanded configuration by a user to permit tossing of the salad without risking spillage of the contents of the bowl.

An expandable bowl has an open top and a plurality of configuration changing side members connecting the open top to a base member. The configuration changing side members are designed to allow a user to pull the base member to changing the side members from a collapsed configuration to an expanded configuration, thereby increasing the overall volume of the bowl. The expandable bowl may be useful for various products, such as pre-packaged salads, where the salads may be packaged and displayed in the collapsed configuration, thereby minimizing shelf space, and may be changed to the expanded configuration by a user to permit tossing of the salad without risking spillage of the contents of the bowl.

A string light storage container. The string light storage container includes a base. The base defines a cylinder rising upward therefrom. The cylinder is centrally disposed in the base. The cylinder is shaped to receive string lights therearound. A cover is removably securable to the base via a fastener, such that an interior cavity is formed around the cylinder when the cover is engaged with the base.

A concave lid including a depression, such as a notch compatible with a user's finger or thumb to apply pressure on the concave lid toward a glass. The depression may include anti-slip ridges to keep the user's fingertip from slipping when pressure is applied by the user. The concave lid has a portion for indicia that is readable from the outer surface of the concave lid. The concave lid may include a textured portion on its lower surface, such as a band of texture, to create friction and prevent the concave lid from slipping with respect to the glass. The concave lids are preferably stackable and made of clear plastic or glass.

Arrangements are provided for smart functionality with dumb containers, such as for determining medication adherence, tracking product use, and validating product authenticity. An acoustic emitter is engaged with a container or other vehicle. Opening the container causes the acoustic emitter to produce an acoustic emission, without requiring power, processing capacity, or sensors. A cell phone or other station receives and registers acoustic emissions, such as by logging opening of the container, verifying authenticity of the acoustic emission, communicating with an oversight system, or similar. Data as may be encoded in an acoustic emission may include vehicle detection data (e.g., logging a container being opened), vehicle information (e.g., lot number, contents name), vehicle validation (e.g., valid or counterfeit numerical code), and audible user recognition (e.g., brand jingles, warning sounds).

An apparatus for the storage of food includes a body portion having a hollow interior configured to receive food, a first end, and a second end opposite the first end. The apparatus further includes a lid configured for selective engagement with the second end of the body portion and a lid assembly configured for selective engagement with the first end of the body portion. The lid assembly includes a crumb filter having a plurality of apertures configured to permit the passage of food crumbs, and a cap, which may be selectively removed from the crumb filter so that food crumbs may be discarded from the body portion.

What is disclosed is a lid for sealing containers containing paint as well as other types of liquids and solids. The lid is flexible and resilient at portions that provide a seal for the container to preserve the contents by reducing off-gas leakage as well as ingress of oxidizing air in order to prevent drying of the contents or other types of deterioration. A handle is provided at a top surface of the lid and which is proximal to the outer structures of the lid. The handle enables a user to utilize thumb and forefinger to squeeze the handle and thereby laterally collapse the lid thereby reducing its lateral dimensions. The central portion of the lid is vertically raised from radially distal portions of the lid to facilitate collapse of the lid when the handle is squeezed. The lateral dimensional reduction enables the lid to more easily fit within the container and furthermore enables its position to be adjusted within the container and thereby enable it to be moved as close to the contents of the container as desired in order to minimize air pockets in the container space directly above the contents. Release of the grip on the handle allows the lid to revert to its original laterally extended position and thereby come into full sealing contact with the interior walls of the container.

Arrangements are provided for smart functionality with dumb containers, such as for determining medication adherence, tracking product use, and validating product authenticity. An acoustic emitter is engaged with a container or other vehicle. Opening the container causes the acoustic emitter to produce an acoustic emission, without requiring power, processing capacity, or sensors. A cell phone or other station receives and registers acoustic emissions, such as by logging opening of the container, verifying authenticity of the acoustic emission, communicating with an oversight system, or similar. Data as may be encoded in an acoustic emission may include vehicle detection data (e.g., logging a container being opened), vehicle information (e.g., lot number, contents name), vehicle validation (e.g., valid or counterfeit numerical code), and audible user recognition (e.g., brand jingles, warning sounds).

An air contact reducer for food storage is described herein. The air contact reducer may be a single piece of plastic. The air contact reducer may be round or rectangular to match the shape of a food container. The air contact reducer may include a knob or handle to help move the air contact reducer up or down (or back and forth in some cases) to reduce the air contact with food while the food is being stored.