Abstract: A fire containment device includes a fog or mist maker, which electrically connected to batteries and a power controller. The battery and power controller are electrically connected to a transformer, and one or more electrical outlet electrically connected to the transformer. One or more switches are built in the electrical circuit to turn on and off the power of fog or mist maker. A cover covers the frame to contain water or mixed water with fire extinguisher agent without leakage. And a transport assembly is used to transport the fire containment device by helicopter or crane truck. Fog or mist maker generates fog or mist from mixed water with extinguisher agent. The fog and mist carry fire extinguisher agent to the flame.

Abstract: An aiming apparatus for nail gun or screw gun includes two or more light pointers. The first light pointer is showing the aiming location of the nail or screw, other light pointers referencing to the last nail or the last screw. The first plate holds the light pointers. The second plate secures the first plate in place. And a belt tightens the aiming apparatus on the nail gun or screw gun.

Abstract: A system for reducing water usage of hand wash station includes a Venturi nozzle contained within a faucet, an air self-closing valve connected to both Venturi nozzle and a first 1-way valve, a bellow pump connected to both the first 1-way valve and a second 1-way valve. A spring or multiple springs are attached to the bellow pump. A solid plate attached on the top of the bellow pump for user standing during hands washing, the weight of the user on the bellow pump pushing air to the Venturi nozzle. A water spring return valve connected to both Venturi nozzle and a fresh water tank, the water spring return valve using to turn off water, allowing only air blow out of the Venturi nozzle for hand drying.