Cleaning and liquid contact with solids – Apparatus – For work having hollows or passages
Reexamination Certificate
1999-11-04
2001-10-23
Stinson, Frankie L. (Department: 1746)
Cleaning and liquid contact with solids
Apparatus
For work having hollows or passages
C134S16900A, C134S102200
Reexamination Certificate
active
06305393
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a flushing and cleaning system, and more particularly to a flushing and cleaning system with pressurized air.
2. Description of the Prior Art
Two typical flushing systems are disclosed in U.S. Pat. No. 5,126,752 to Weinberg, and U.S. Pat. No. 5,377,705 to Smith, Jr. et al. The typical flushing systems comprise a pump or a motor provided for directly pumping the cleaning media, such as the gaseous material, the liquid, the cleaning agent, or the solvent. The typical flushing systems may not use the pressurized air to circulate the cleaning agent.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional flushing systems.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a flushing system having a pressurized air source for providing the pressurized air to circulate the cleaning agent and to cleaning the objects.
In accordance with one aspect of the invention, there is provided a flushing system comprising a tank for receiving a cleaning material, an object to be cleaned being coupled to the tank for receiving the cleaning material from the tank, a container coupled to the object for receiving the cleaning material from the object, and means for supplying a pressurized air into the tank to force the cleaning material into the object to clean the object.
The tank and the container each includes a bottom portion coupled together for allowing the cleaning material to flow between the tank and the container. A check valve is further disposed between the tank and the container for preventing the cleaning material from flowing backward from the tank to the container. The tank includes means for indicating a level of the cleaning material received in the tank.
The pressurized air supplying means includes a pressurized air supplying device coupled to an inlet port of the tank for supplying the pressurized air into the tank. A control valve is further coupled between the tank and the pressurized air supplying device and coupled to the container for selectively supplying the pressurized air into the tank and the container. A switch valve is further coupled between the control valve and the pressurized air supplying device and coupled to the tank for selectively supplying the pressurized air into the tank and the pressurized air supplying device.
REFERENCES:
patent: 1799105 (1931-03-01), Lasko
patent: 2425848 (1947-08-01), Vawter
patent: 2554389 (1951-05-01), Stevens
patent: 2632719 (1953-03-01), Tankersley
patent: 3431145 (1969-03-01), Riley
patent: 3536081 (1970-10-01), Riess
patent: 3566892 (1971-03-01), Logue
patent: 5076856 (1991-12-01), Schweiger
patent: 5126752 (1992-06-01), Weinberg
patent: 5289837 (1994-03-01), Betancourt
patent: 5377705 (1995-01-01), Smith, Jr. et al.
patent: 5482061 (1996-01-01), Bell
patent: 5816272 (1998-10-01), Leaphart
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