Combined steam and vacuum cleaner
AssigneeMetropolitan Vacuum Cleaner Co., Inc.
InventorJack J. Gilbert
Life of this patent
Estimating the term…
Abstract
A portable machine for steam cleaning carpets, rugs, automotive engines and soiled areas including an electrolytic generator for substantially instant production of steam, a positive displacement pump for delivering a water-chemical solution from a tank to the electrolytic generator and from the electrolytic generator a discharge of steam via a flexible hose and nozzle onto a soiled area including automotive engines. When adapted primarily for rug and carpet cleaning the machine includes an air pump and solenoid for delivering detergent from a tank to the nozzle and a vacuum motor with nozzle for picking up excess moisture and dirt particles released by the steam solution.
Claims13
A portable steam cleaning machine comprising, in combination, an electrolytic generator for generating steam, said generator consisting of a pair of spaced carbon rods, a sealed receptacle for containing said carbon rods, said receptacle having an inlet port and an outlet port, a positive displacement pump having an inlet port and an outlet port, a tank for holding a liquid solution, tubular means for interconnecting said tank and said inlet port of said pump, tubular means for interconnecting said outlet port of said pump and said inlet port of said receptacle, tubular nozzle means including tubular means having one end connected to said outlet port of said receptacle, and electrical means for simultaneously energizing said carbon rods and said pump, whereby liquid from said tank is fed by said pump into said receptacle to contact both of said carbon rods and close an electrical circuit for said electrolytic generator for producing substantially instant steam to be discharged from said nozzle means upon a surface to be cleaned.
A portable steam cleaning machine comprising, in combination, a casing, a plurality of casters attached to said casing for ready movement thereof, an electrolytic generator for generating steam consisting of a pair of spaced carbon rods, a sealed receptacle mounted within said casing for containing said carbon rods, a positive displacement pump mounted within said casing adjacent to said receptacle, a tank mounted within said casing for holding a liquid solution consisting mainly of water and a small amount of ammonium nitrate, tubular means for connecting said positive displacement pump to said tank and to one side of said receptacle, tubular nozzle means having one end connected to another side of said receptacle, and electrical means for energizing said carbon rods and said positive displacement pump, whereby liquid from said tank is fed by said positive displacement pump into said receptacle to contact both of said carbon rods and close an electrical circuit for said electrolytic generator for producing substantially instant steam to be discharged from said nozzle means upon a surface to be cleaned.
Dependencies are inferred from the claim text.