Swimming pool cleaning apparatus and parts therefor
US7318448B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 25, 2002 |
| Grant date | Jan 15, 2008 |
| Priority date | — |
| Expiry date | Oct 25, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87893
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A swimming pool cleaning device includes a fluid distribution system for controlling its operation. More particularly, the distribution system includes a housing having an inlet for receiving a supply of pressurized fluid, a pair of outlet openings and a valve chamber positioned between the inlet and the outlet openings. A piston, including a valve member, is movably mounted in the housing so as to be movable between a first position, in which the valve member closes one of the outlet openings so as to divert pressurized fluid to the other one of the outlet openings, and a second position, in which the valve member closes the other one of the outlet openings so as to divert pressurized fluid to the one of the outlet openings. A valve is provided for controlling the movement of the piston between the first and second positions. The piston has a passage extending therethrough so as to permit flow of pressurized fluid from the valve chamber to the valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.