Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1998-04-02
1999-09-07
Coe, Philip R.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15315, 153401, 15352, 15353, 134109, 134111, 134168C, B08B 302, B08B 902
Patent
active
059467673
ABSTRACT:
The present invention relates to a mobile pipe cleaning vehicle and a process for cleaning pipes with a mobile pipe cleaning vehicle. The vehicle can be used to clean pipes, e.g., wastewater or storm drainage pipes. The vehicle includes a tank housing divided into three tanks: a sludge tank for holding water with a high degree of sludge and debris, a water supply tank for supplying water to a high pressure pump for high pressure spraying of a pipe to be cleaned, and a water-in-use tank disposed between the water supply tank and the sludge tank. Water used from the water-in-use tank is used for helping to create a seal in a liquid ring vacuum pump, enabling the sludge tank to be placed in a vacuum. Cooler water in the sludge tank and the water supply tank cool the water in the water-in-use tank to prolong the life and increase the efficiency in the liquid ring vacuum pump. A filtration system includes a first filtration device in the sludge tank, second and third filtration devices between the sludge tank and the water supply tank, and a fourth filtration device between the water supply tank and the high pressure pump. A water recycling pump pumps the water from the sludge tank through the first, second, and third filtration devices. If the water supply tank becomes substantially filled, the water recycling pump will pump water from the water supply tank through the second and third filtration devices to further clean the water. The fourth filter is disposed between the water supply tank and the high pressure pump to ensure that the water reaching the high pressure pump is virtually clean, thus significantly prolonging the life of the high pressure pump.
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NIBCO "125 lb. w.o.g. and 250 lb. w.o.g. iron body silent check," p. 61 (undated).
Sihi Pumps Brochure "Liquid Ring Vacuum Pumps" pp. 1-11 (1995).
Coe Philip R.
Gapvax, Inc.
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