Underwater pool cleaner

Details Underwater pool cleaner Underwater pool cleaner

1987-01-23

1988-09-06

Coe, Philip R.

Cleaning and liquid contact with solids

Apparatus

With treating fluid purifying or separating means

134167R, 15 17, 15409, B08B 302

Patent

active

047685328

ABSTRACT:
A low profile carriage is mounted on widely spread wheels to roll along the underwater surfaces of a swimming pool. The carriage is propelled by a high velocity stream of water projecting from a rearwardly directed thrust nozzle. There is a venturi restriction just forward of the thrust nozzle, creating a low pressure zone that induces flow of water through the bottom of the carriage, drawing in leaves and other debris. The water so drawn in passes through a screen, trapping the debris in a removable pod or bin depending from the carriage. The top of the carriage is relatively flat and the depending debris pod is curved downward to form an inverted air foil, whereby the pressure differential between the top and bottom of the carriage biases the carriage against the swimming pool surface traversed thereby.

REFERENCES:
patent: 759141 (1904-05-01), Thurman
patent: 3310173 (1967-03-01), Sosower
patent: 3444575 (1969-05-01), Martin
patent: 3860518 (1975-01-01), Henricksen
patent: 3921654 (1975-11-01), Pansini
patent: 4064586 (1977-12-01), Caron
patent: 4169484 (1979-10-01), Bonigut et al.
patent: 4589986 (1986-05-01), Greskovics et al.
patent: 4652366 (1987-03-01), Brooks

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