Abstract: An underwater breathing apparatus includes an elastic interior bag designed to hold air. The interior bag is contained within an outer container, which is designed to hold a weighted material which functions to offset positive buoyancy created by the air in the interior bag. The elasticity of the interior bag, as well as a slider mechanism, functions to provide pressure such that the air is accessible to a human diver while underwater. The apparatus also contains a pump that is used to fill the interior bag with air, and a mouthpiece that functions to allow the user to draw air from the apparatus.

Abstract: A magnetic zipper pull tab apparatus includes a zipper pull tab and zipper body that contain corresponding magnetic elements. The zipper pull tab is shaped and functions much like a traditional zipper tab, and the zipper functions like a traditional zipper. The magnetic elements allow the zipper tab to magnetically secure to the zipper body when the zipper is in a closed position. The zipper tab and zipper body contain magnetic elements by way of having magnets affixed to or located inside of them, or are themselves made from magnetic materials.

Abstract: An underwater breathing apparatus includes an elastic interior bag designed to hold air. The interior bag is contained within an outer container, which is designed to hold a weighted material which functions to offset positive buoyancy created by the air in the interior bag. The elasticity of the interior bag, as well as a slider mechanism, functions to provide pressure such that the air is accessible to a human diver while underwater. The apparatus also contains a pump that is used to fill the interior bag with air, and a mouthpiece that functions to allow the user to draw air from the apparatus.