초록 ▼

A particular multi-functional cleaning machine, in accordance with the principles of the invention, includes a water-tank and a liquid delivery line extending from the water tank to a high-pressure spray gun. The liquid delivery line has an inner end, a pump, and an outer end, with the inner end con

A particular multi-functional cleaning machine, in accordance with the principles of the invention, includes a water-tank and a liquid delivery line extending from the water tank to a high-pressure spray gun. The liquid delivery line has an inner end, a pump, and an outer end, with the inner end connected to the water tank, and the outer end connected to the high-pressure spray gun. The machine also has a cleaning-liquid draw line which is connected to the liquid delivery line using a cleaning-liquid injector. Because the machine has a separate cleaning-liquid draw line, an operator is able to choose from among any of a number of different cleaning liquids stowed in containers on the machine, and to draw a particular liquid through the draw line, into the liquid delivery line, where it may be combined with water from the water tank and subsequently sprayed onto a surface to be cleaned. The machine also incorporates a vac tank, a vacuum connected to the vac tank, and a vac-hose assembly, thereby enabling a user to vacuum spent cleaning solution and soil into the vac tank. Other aspects of the invention include a grout cleaning tool, a plunger gun, a liquid transport device, and a method of cleaning a soiled surface.

대표청구항 ▼

[What is claimed is:] [1.]a liquid tank;a liquid delivery line having an inner end, a pump, and an outer end, the inner end connected to the liquid tank;a cleaning-liquid line connected to the liquid delivery line;an injector connecting the cleaning-liquid line and the liquid delivery line, the inje

[What is claimed is:] [1.]a liquid tank;a liquid delivery line having an inner end, a pump, and an outer end, the inner end connected to the liquid tank;a cleaning-liquid line connected to the liquid delivery line;an injector connecting the cleaning-liquid line and the liquid delivery line, the injector including a venturi tube;a vac tank; anda vacuum connected to the vac tank.