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| Number | Title | Issue Date |
| 5930856 | Automatic swimming pool cleaners and associated components Automatic swimming pool cleaning systems are disclosed. The systems include an automatic swimming pool cleaner incorporating one or more curved wipers protruding from its lower surface. The wipers and flat bottom of the cleaner induce a vortex as fluid fl... | 08/03/1999 |
| 5882512 | Automatic swimming pool cleaners and associated components and systems Systems and apparatus for cleaning swimming pools or other vessels are disclosed. Exemplary systems may include an automatic swimming pool cleaner adapted not only to filter debris from water mechanically, but to dispense water sanitizing chemicals as wel... | 03/16/1999 |
| 5775741 | Swimming pool cleaner swivel assembly The swivel assembly of the present invention employs a thrust bearing configuration that provides smooth operation under non-axial and axial load conditions. The assembly comprises two opposing bearing surfaces, one on the end of a hose pipe and the other... | 07/07/1998 |
| 5720068 | Automatic swimming pool cleaners and associated components Automatic swimming pool cleaning systems are disclosed. The systems include an automatic swimming pool cleaner incorporating one or more curved wipers protruding from its lower surface. The wipers and flat bottom of the cleaner induce a vortex as fluid fl... | 02/24/1998 |
| 5617606 | Fluted swimming pool cleaner discs Discs for devices such as automatic swimming pool cleaners are disclosed. The discs incorporate one or more flutes, or raised areas (arched protrusions), extending generally radially from adjacent their central portions to their peripheries. The peripheri... | 04/08/1997 |
| 5570713 | Flow control weir valve A flow control weir valve and method of operating the valve is disclosed. The valve has an inlet, an outlet, a bypass inlet, a pivoting cover and a mechanism for controlling the cover in order to provide a relief flow through the valve. The cover is conti... | 11/05/1996 |
| 5546982 | Automatic swimming pool cleaners and associated components Automatic swimming pool cleaning systems are disclosed. The systems include an automatic swimming pool cleaner incorporating one or more curved wipers protruding from its lower surface. The wipers and flat bottom of the cleaner induce a vortex as fluid fl... | 08/20/1996 |
