Patent ID: 7895705

Claim:
A steam cleaning apparatus, comprising: a water container and a wax container to accommodate and supply water and wax in response to an operation start instruction, respectively; a pump to discharge a mixture of water and wax supplied from the water container and the wax container; a nozzle to spray the mixture into a pipe of a pipe coil; a combustion chamber having the pipe coil to receive and to heat the sprayed mixture; a burner to heat the pipe coil of the combustion chamber with a fuel from a fuel container to convert the sprayed mixture into steam having high temperature and high pressure; a steam gun to discharge the high temperature and pressure steam from the combustion chamber to an outside of the apparatus; a controller to control the water container, wax container, pump, combustion chamber, fuel container, and burner and to allow the mixture of water and wax to be discharged to the outside after being converted to the high temperature and pressure steam and to report low levels in the water container, the wax container and the fuel container; and an automatic controller to control power supply into the apparatus, wherein the automatic controller automatically stops the apparatus by cutting off power supply into the apparatus after a predetermined time after the controller informs of the low levels in the water container, the wax container and the fuel container.