Fluid handling – Systems – Sequential distributor or collector type
Reexamination Certificate
2000-11-17
2001-11-13
Lee, Kevin (Department: 3753)
Fluid handling
Systems
Sequential distributor or collector type
C137S624140, C137S119070
Reexamination Certificate
active
06314999
ABSTRACT:
TECHNICAL FIELD
This invention is concerned with improving the reliability and performance of distribution valves of the type employed to sequentially direct a fluid, such as water, to a plurality of pop-up cleaning nozzles in a swimming pool or spa.
BACKGROUND ART
This type of valve is well known in the prior art. One particularly successful version of the distribution valve is disclosed in U.S. Pat. No. 4,592,379 granted Jun. 3, 1986 to John M. Goettl for “Fluid Distribution Valve”. Many of the features disclosed in the Goettl patent are useful in the valve to which this application is directed and, hence, the Goettl disclosure is incorporated herein by reference.
The valve of the '379 patent can be improved upon.
SUMMARY OF THE INVENTION
The afore-mentioned Geottl '379 patent suggests the desirability of indexing the valve assembly with respect to the base to assure alignment of the valve members with their respective outlet flow chambers but discloses no means for accomplishing this.
In accordance with this invention the valve assembly is provided with an alignment member which cooperates with an alignment member on the base land on which the shut-off valve plate rests. This preferably takes the form of at least one pin projecting beneath the valve shut-off plate and at least one opening in the land on the base.
The outlet flow chambers are separated by partition ribs in the base and it is important that there be sealing engagement of the valve shut-off plate with these ribs. In accordance with this invention the valve assembly includes therein a plurality of posts for pressing the valve shutoff plate against the ribs.
REFERENCES:
patent: 4313455 (1982-02-01), Pitman
patent: 4592379 (1986-06-01), Goettl
Cahill Sutton & Thomas P.L.C.
Lee Kevin
Paramount Leisure Industries, Inc.
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