Remote controlled carpet cleaner

Fluid sprinkling – spraying – and diffusing – Processes – Including mixing or combining with air – gas or steam

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Details

15321, 15339, 239 13, 239129, 239305, A47L 1134

Patent

active

058711520

ABSTRACT:
A remote controlled carpet cleaner includes a rectangular outer support frame of structural steel. A gasoline engine drives a vacuum pump and through a pulley and belt assembly is also powers a liquid pump. The exhaust gas from the engine is directed to a heat exchanger which is used to heat water which is pumped through the heat exchanger by the liquid pump. A liquid injector allows carpet cleaning chemicals to be mixed with the water as it enters the pump. The liquid injector is connected to a plurality of solenoid valves. Each solenoid valve is connected to a tank containing a carpet cleaning chemical. When a solenoid valve is opened, a specific carpet cleaning chemical in drawn into the liquid injector and mixed with the water entering the pump. The opening and closing of the solenoid valves is controlled by servo motors operated by a radio controlled receiver. The operator carries a belt mounted transmitter unit which transmits signals to the receiver to thereby direct the opening and closing of the solenoid valves and thus the carpet cleaning chemical to be dispensed. The transmitter unit includes a "lockout" feature to prevent the accidental dispensing of the wrong chemical. The remote controlled carpet cleaner offers a substantial increase in productivity by offering an operator the ability to remotely control and dispense required cleaning chemicals without making repeated trips between the cleaning site and a supply truck.

REFERENCES:
patent: 3322350 (1967-05-01), Heinicke et al.
patent: 3626545 (1971-12-01), Sparrow
patent: 4158248 (1979-06-01), Palmer
patent: 4244079 (1981-01-01), Bane
patent: 4284127 (1981-08-01), Collier et al.
patent: 5383605 (1995-01-01), Teague
patent: 5749526 (1998-05-01), Laabs et al.

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