Abstract: An indoor grill comprises a plate and an additional plate. In various embodiments the plate is coupled to the additional plate via a hinge or other suitable fastener allowing a distance between the plate and the additional plate to be changed. A heating element is coupled to the plate and to the additional plate that is configured to transfer heat to one or more of the plate and the additional plate. In various embodiments, the plate includes one or more patterns of spikes that pierce a surface of food placed on the indoor grill when pressed against the food. Heat from the heating element is transferred to the spikes, so when the spikes pierce the food, heat from the spikes heats the food from below the surface of the food. In some embodiments, the additional plate also includes one or more patterns of spikes.

Abstract: A system produces bubbles. The system may be used as a children's toy, a special effects machine, an art performance prop, a party entertainment item, or a similar object for entertaining users. The system is designed to produce bubbles regardless of the orientation of the system. The system includes a reservoir, a pump, a swiping mechanism, and a fan. The reservoir receives and stores fluid, and the pump provides pressure on the stored fluid such that the fluid travels through the reservoir and exits the reservoir. The swiping mechanism spreads across the exited fluid to create a fluid sheet, and the fan blows on the fluid sheet, transforming it into a bubble. The pump enables the stored fluid to be available for bubble production at any orientation of the system. The system may be moved, rotated, thrown, bounced, swung, etc. by a user and produce bubbles during its motion.

Abstract: A system produces bubbles. The system may be used as a children's toy, a special effects machine, an art performance prop, a party entertainment item, or a similar object for entertaining users. The system is designed to produce bubbles regardless of the orientation of the system. The system includes a reservoir, a pump, a swiping mechanism, and a fan. The reservoir receives and stores fluid, and the pump provides pressure on the stored fluid such that the fluid travels through the reservoir and exits the reservoir. The swiping mechanism spreads across the exited fluid to create a fluid sheet, and the fan blows on the fluid sheet, transforming it into a bubble. The pump enables the stored fluid to be available for bubble production at any orientation of the system. The system may be moved, rotated, thrown, bounced, swung, etc. by a user and produce bubbles during its motion.

Abstract: Useful in a construction environment, for example, the protection system is installed over a surface to be protected, various configurations of a protection system are installed over a portion of an infrastructure improvement, such as a sidewalk, curb, gutter, or other structure. Traffic crossing the surface of the infrastructure improvement is then directed over the protection system to avoid damage that could otherwise occur due to the application of topical weight directly on the surface. The protection system may include ramps that facilitate traffic over the protected surface.