Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1978-11-15
1980-03-18
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
417217, 60413, 134168R, 210 70, 210169, B01D 3700
Patent
active
041938704
ABSTRACT:
Apparatus for cleaning a swimming pool wherein one or more automatically controlled water jets are strategically spaced about the floor of the pool, their periodic operation and their direction being controlled by air-actuated means in a manner which optimizes their effectiveness.
REFERENCES:
patent: 3433014 (1969-03-01), Duport et al.
patent: 3675252 (1972-07-01), Ghiz
patent: 4114206 (1978-09-01), Franc
Burks Richard W.
Hart Charles N.
Lindsley Warren F. B.
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