Cleaning and liquid contact with solids – Processes – Including use of vacuum – suction – or inert atmosphere
Patent
1974-07-01
1976-06-22
Feldman, Peter
Cleaning and liquid contact with solids
Processes
Including use of vacuum, suction, or inert atmosphere
15321, 15322, 15346, 134 37, B08B 504
Patent
active
039649253
ABSTRACT:
Apparatus for cleaning carpets is provided. The apparatus includes a nozzle for applying liquid such as water to the carpet and also includes air nozzles or openings for drying the carpet. Specifically, a vacuum nozzle is employed to pull in air and water from the carpet, with a hose connecting the vacuum nozzle to a vacuum tank which is associated with a vacuum blower. An exhaust air nozzle or opening is positioned near the vacuum nozzle, with a hose connecting this nozzle to an exhaust outlet associated with the vacuum blower. The vacuum nozzle and the exhaust air nozzle or opening are positioned so that warm exhaust air from the vacuum blower is emitted from the exhaust air nozzle or opening, passes at least partly through the carpet, and is at least partly returned with water through the vacuum nozzle to the tank. In one form, the exhaust air nozzle or opening can be opened and closed remotely through suitable linkages. The liquid nozzle is located in a plenum chamber associated with the exhaust air nozzle or opening and is directed toward the carpet through an exhaust air opening in the chamber. A valve controls flow of liquid to the liquid nozzle and in one form this valve is controlled by the same linkages that control the position of the exhaust air nozzle. When the exhaust air nozzle is closed, the valve is opened to supply liquid to the liquid nozzle with the exahust air in the plenum chamber then passing through the exahust air opening around the liquid nozzle and breaking up the liquid emanating therefrom into a spray. A rotatable brush can also be located below the liquid nozzle to receive liquid therefrom and also to receive the exhaust air which can help to cause rotation of the brush. The liquid for the nozzle can be supplied by gravity from a tank thereabove. The liquid tank can also be located remotely at the vacuum unit with the liquid supplied to the nozzle by means of the pressure of the exhaust air. In a simplified form, the exhaust air nozzle can be eliminated with the exhaust air passing through the exhaust air opening around the liquid nozzle at all times.
REFERENCES:
patent: 2270579 (1942-01-01), Chamberlin
patent: 2986764 (1961-06-01), Krammes
patent: 3079285 (1963-02-01), Rockwell
patent: 3101505 (1963-08-01), Belicka et al.
patent: 3774262 (1973-11-01), Anthony et al.
Feldman Peter
Gutchess, Jr. Allen D.
Moore C. K.
The Scott & Fetzer Company
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