Filter backwash nozzle
First Claim
1. A nozzle for use within a filter for inputting a jetting stream into filter media, the nozzle comprising:
- an inlet for communication with a jetting stream source;
a plurality of plates stacked parallel and abutting one another, the plurality of plates comprising a first plate, a second plate and one or more intermediate plates, the first plate having an aperture through the center thereof for receiving the jetting stream,wherein at least the second plate includes at least one ridge that defines a respective channel between an adjacent plate, the channel extends from an outside edge of the second plate to an interior of the second plate in fluid communication with the aperture for guiding at least a portion of the jetting stream in a radial, curvilinear outward direction from and substantially parallel with a longitudinal plane of the second plate,wherein the one or more intermediate plates each comprise a first side facing towards the first plate, a second side facing towards the second plate and a further aperture through the center thereof for receiving the jetting stream, the further aperture of the one or more intermediate plates in fluid communication with the aperture of the first plate, andwherein an interior diameter of each further aperture in the center of the one or more intermediate plates is successively reduced for plates positioned towards the second plate.
1 Assignment
0 Petitions
Accused Products
Abstract
A nozzle is disclosed for use within a filter for inputting a jetting stream into the filter media to clean the filter media. The nozzle comprises an inlet for communication with a jetting stream source, and a plurality of plates stacked parallel and abutting one another. The plurality of plates comprises at least a top plate and a bottom plate, one of the plates having an aperture through the center thereof for receiving the jetting stream, wherein between adjacent plates at least one space is provided extending from the outside edge of the plates to the interior of plates and in fluid communication with the aperture for channelling the jetting stream radially outward from and substantially parallel with the longitudinal plane of the plate.
7 Citations
29 Claims
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1. A nozzle for use within a filter for inputting a jetting stream into filter media, the nozzle comprising:
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an inlet for communication with a jetting stream source; a plurality of plates stacked parallel and abutting one another, the plurality of plates comprising a first plate, a second plate and one or more intermediate plates, the first plate having an aperture through the center thereof for receiving the jetting stream, wherein at least the second plate includes at least one ridge that defines a respective channel between an adjacent plate, the channel extends from an outside edge of the second plate to an interior of the second plate in fluid communication with the aperture for guiding at least a portion of the jetting stream in a radial, curvilinear outward direction from and substantially parallel with a longitudinal plane of the second plate, wherein the one or more intermediate plates each comprise a first side facing towards the first plate, a second side facing towards the second plate and a further aperture through the center thereof for receiving the jetting stream, the further aperture of the one or more intermediate plates in fluid communication with the aperture of the first plate, and wherein an interior diameter of each further aperture in the center of the one or more intermediate plates is successively reduced for plates positioned towards the second plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 15, 16, 17, 19, 20, 21, 22)
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13. A nozzle for use within a filter for inputting a jetting stream into filter media, the nozzle comprising:
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an inlet for communication with a jetting stream source; a plurality of plates stacked parallel and abutting one another, the plurality of plates comprising a first plate, a second plate and one or more intermediate plates, the first plate having an aperture through the center thereof for receiving the jetting stream, wherein at least the second plate includes at least one ridge that defines a respective channel between an adjacent plate, the channel extends from an outside edge of the second plate to an interior of the second plate in fluid communication with the aperture for guiding at least a portion of the jetting stream in a radial, curvilinear outward direction from and substantially parallel with a longitudinal plane of the second plate, wherein the one or more intermediate plates each comprise a first side facing towards the first plate, a second side facing towards the second plate and a further aperture through the center thereof for receiving the jetting stream, the further aperture of the one or more intermediate plates in fluid communication with the aperture of the first plate, and wherein the one or more intermediate plates define a gap between adjacent plates, wherein the gap is successively reduced for plates positioned towards the second plate, where the second plate is disposed on a side of said nozzle furthest from said inlet. - View Dependent Claims (14)
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18. A nozzle for use within a filter for inputting a jetting stream into a filter media, the nozzle comprising:
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an inlet for communication with a jetting stream source; a plurality of plates stacked parallel and abutting one another, the plurality of plates comprising at least a first plate, one or more intermediate plates and a second plate, the first plate and the one or intermediate plates each having an aperture through the center thereof for receiving the jetting stream, wherein between adjacent plates a plurality of channels are provided that each extend from an outside edge of the plates to an interior of the plates, the plurality of channels are each in fluid communication with the aperture for guiding at least a portion of the jetting stream in a radial, curvilinear outward direction from and substantially parallel with a longitudinal plane of the plates; wherein each of the plurality of channels is defined by a respective flanking ridge that abuts the adjacent parallel stacked and abutting plate, each respective flanking ridge having an impeller shape for guiding the jetting stream radially outward from the aperture; and wherein an interior diameter of each aperture in the center of the one or more intermediate plates is successively reduced for plates positioned towards the second plate and/or a gap that is defined by a distance between adjacently stacked plates is reduced successively towards the second plate. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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Specification