Liquid purification or separation – Processes – Separating
Patent
1986-11-07
1988-10-18
Fisher, Richard V.
Liquid purification or separation
Processes
Separating
210169, 2102421, 15 17, 134167R, 366241, 366280, 366343, E04H 316
Patent
active
047785993
ABSTRACT:
An automatic swimming pool cleaning apparatus has a surface supply hose connected to a floating unit and a further underwater hose that is connected at one end to the surface unit in fluid communication with the outlet of the surface hose and at its other outlet end to a non-buoyant cleaning unit. The underwater hose and the cleaning unit have jets directed in a downstream direction so that the cleaning unit moves through water in the pool and the underwater hose pushes the surface unit around. The cleaning unit carries a bag in which debris is collected. The surface hose also carries a jet to pull the surface unit around. The surface unit also has a jet which displaces and rotates the surface unit. The surface unit has a flotation member that is rotatable about a vertical axis. A first connector is rotatably mounted below the flotation member and a second connector is rotatably connected to the first connector. The first connector has a transverse inlet connected to the outlet of the surface hose and an axial outlet which communicates with an opposed axial inlet of the second connector. The second connector has a transverse outlet connected to the inlet of the underwater hose. A strap limits relative rotation of the first and second connectors. The flotation member also carries a rotatable spinner that is unbalanced to cause the flotation member to wobble.
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Fisher Richard V.
Lee Coreen Y.
Spooner Est
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