Cleaning and liquid contact with solids – Processes – Combined
Patent
1990-08-22
1991-08-06
Morris, Theodore
Cleaning and liquid contact with solids
Processes
Combined
134 21, 134 221, 134 2212, 134 23, 134 24, 134168R, 134113, B08B 704
Patent
active
050374869
ABSTRACT:
A self-propelled, sludge cleaning machine including a sludge auger, a sludge pump, crawler tracks and hydraulic motors for propulsion, steering and pumping is assembled at a job-site and inserted into the storage tank through a top access opening. A tether line is connected between the cleaning machine and a control assembly temporarily installed near the access opening to sense tether line length and angle. A sludge discharge hose, hydraulic lines, and an electric wire for an ultrasonic sludge-depth sensor on the machine extend outwardly through the access opening. The hose discharges sludge through a filter and into a sludge-collection tank on a first truck. The hydraulic lines are connected to a control valve assembly located on a second truck and controlled by a preprogrammed job-site computer located in the second truck. Length, angle and sludge-depth data from the sensors are fed to the job-site computer which provides a visual display showing cleaning machine position and sludge-depth. The job-site computer operates the control valve assembly to drive and steer the machine according to a previously-designed (but overridable) program contained on a computer disk (which requires a password or code to actuate). The computer is phone-linked to a central computer an together they, monitor and save clean-up operational data.
REFERENCES:
patent: 4770711 (1988-09-01), Deal, III et al.
Chaudhry Saeed
Morris Theodore
Subaqueous Services, Inc.
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