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| Flotation method and apparatus |
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Faucet water treatment
| Details |
Inventors: Chau, Yiu Chau;
Assignee:
Primary Examiner: Copenheaver; Blaine
Assistant Examiner: Pham; Minh-Chau T.
Attorney, Agent or Firm: Cook, Alex, McFarron, Manzo, Cummings & Mehler, Ltd.
A water treatment unit is disclosed which can be mounted directly on the faucet or tap of the user's sink and which contains one or more water treatment media and an operating valve which permits the selection of several operating modes including service, spray and stream modes. In the service mode the water is treated by at least one if not all of the various water treatment media contained in the unit housing after which the water is discharged from the valve of the unit for service use, and the service discharge may be adjusted to direct the treated water as desired by the user. The valve of the treatment unit includes a housing, a stationary member, a slide member and a rotatable switch member unit and may also be operated in a backflush mode in which water may be directed in the reverse direction through at least one of the water treatment media to regenerate that media. The volume of flow through the unit may also be sensed to measure the life of the treatment media to signal when they should be replaced. |
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DETAILED DESCRIPTION I claim: 1.
A valve comprising: a valve housing having an elongate chamber therein, an inlet for fluid on said valve housing communicating with said chamber, and first and second discharges on said valve housing communicating with said chamber, said first discharge including first and second openings for discharging the fluid from said valve housing; a stationary member in said chamber having a plurality of openings therethrough at least some of which align with said inlet for fluid and said first and second openings of said first discharge and said second discharge, said stationary member generally conforming in shape and size to the shape and size of said chamber; and a switch member in said stationary member, said switch member being rotatable between spray, stream and service positions respectively to direct the fluid to said first opening so that it is discharged from said first discharge in the form of a spray when in said spray position, to direct the fluid to said second opening so that it is discharged from said first discharge as a stream when in said stream position, and to direct the fluid to said second discharge on said valve housing to discharge the fluid as service fluid from the valve housing when in said service position.
2.
The valve of claim 1, wherein said stationary member comprises a gasket.
3.
The valve of claim 1, wherein said stationary member includes at least one seal thereon which blocks communication between said inlet and selected ones of said first and second openings and/or discharges when said switch member is rotated between said positions.
4.
The valve of claim 1, wherein said chamber, said stationary member and said switch member are generally cylindrical in cross-section.
5.
The valve of claim 1, wherein said first discharge on said valve housing includes a cap overlying said first and second openings, said cap comprising a plurality of small openings and at least one large opening spaced from said small openings, and wherein said first opening of said first discharge is aligned with said plurality of small openings to discharge the fluid from said plurality of small openings of said cap as a spray when said switch member is in said spray position, and said second opening of said first discharge is aligned with said large opening of said cap to discharge the fluid from said large opening as a stream when said switch member is in said stream position
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Liquid Purification 
