Filter washing apparatus

Details Filter washing apparatus Filter washing apparatus

1990-09-26

1991-08-27

Coe, Philip R.

Cleaning and liquid contact with solids

Apparatus

For work having hollows or passages

134191, B08B 900

Patent

active

050425161

ABSTRACT:
To provide an inexpensive, portable, and easy to use apparatus for applying a detergent to a used hot tub or other filter, a tank is provided with a submersible pump and has a large perforated tube affixed to its bottom. The filter to be cleaned is placed over this large tube. A readily disconnectable arrangement of tubing terminates in a small perforated tube at a first end and is connected to the outlet of the submersible pump at a second end. The large perforated tube is provided with a collar to keep the filter from floating and to prevent undesirable current flows around rather than through the filter. The small perforated tube fits within the large perforated tube after the filter and collar are in place. When a detergent solution is placed in the tank and the submersible pump is activated, the detergent solution moves from a region in the tank that is exterior to the filter, through the pump and readily disconnectable arrangement of tubing to a region interior to the small perforated tube, through the perforations in the small perforated tube to a region that is exterior to the small perforated tube and interior to the large perforated tube, then through the perforations in the large perforated tube to a region that is exterior to the large perforated tube and interior to the filter to be cleaned, and then through the filter to be cleaned and back to the region in the tank that is exterior to the filter.

REFERENCES:
patent: 3583413 (1971-06-01), Mertzanis
patent: 3613700 (1971-10-01), Werth et al.
patent: 3665547 (1972-05-01), Boylan
patent: 3765051 (1973-10-01), Wanat
patent: 3780747 (1973-12-01), Stadie et al.
patent: 3820552 (1974-06-01), Lang et al.
patent: 4067749 (1978-01-01), McKinney
patent: 4299245 (1981-11-01), Clapper
patent: 4417596 (1983-11-01), Pahlen

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