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US 11,027,292 B2Granted
Double filter with pass-through and method for dynamically compensating for the inlet fluid contamination
AssigneeDlhbowles, Inc.
InventorGregory Russell
Life of this patent
Estimating the term…
Abstract
A multiple-fluidic circuit substrate structure with an integral inter-circuit bypass lumen effectively provides multiple parallel filtered fluid inlets having filtered fluid outlets with at least one inter-circuit pass-through channel in fluid communication between the filtered fluid outlets to automatically provide full flow of filtered fluid to each of a plurality of fluidic circuits or to two or more circuits even if one fluidic circuit's corresponding inlet fluid filter is clogged.
Claims9
A multiple fluid circuit spray device, comprising:
- a fluid oscillator circuit substrate or chip having an input end, at least first and second fluidic circuits defined in first and second sides, and an output end which is transverse to said first and second sides and a plane between said sides;
- said first side including a first filter subchamber having an upstream end and a downstream end and a first filter dividing the upstream end of said first filter subchamber from the downstream end of said first filter subchamber, with said upstream end being in registry with said input end to receive liquid from a source of pressurized fluid;
- said second side including a second filter subchamber having an upstream end and a downstream end and a second filter dividing the upstream end of said second filter subchamber from the downstream end of said second filter subchamber with said upstream end being in registry with said input end to receive liquid from a source of pressurized fluid;
- an inter-circuit transverse bypass lumen or liquid flow path positioned downstream of the first filter subchamber and downstream of the second filter subchamber;
- said first fluidic circuit having an inlet in communication with said first filter subchamber and with said inter-circuit transverse bypass lumen or liquid flow path, wherein said first fluidic circuit includes an outlet throat leading through an outlet orifice to ambient at said output end to generate a first spray of said fluid to ambient;
- and
- said second fluidic circuit having an inlet in communication with said second filter subchamber and with said inter-circuit transverse bypass lumen or liquid flow path, wherein said second fluidic circuit includes an outlet throat leading through an outlet orifice to ambient at said output end to generate a second spray of said fluid to ambient.
4 more elements
A method for maintaining a selected outlet spray pattern in a multi-outlet multiple fluid circuit spray device, comprising:
- providing a fluid oscillator circuit substrate or chip having an input end, first and second sides, and an output end which is transverse to said first and second sides and a plane between said sides;
- defining at least first and second fluidic circuits in said first and second sides, respectively;
- incorporating in said first fluidic circuit a first filter subchamber having an upstream end and a downstream end and a first filter dividing the upstream end of said first subchamber from the downstream end of said first filter subchamber, with said upstream end being in registry with said input end to receive liquid from a source of liquid;
- incorporating in said second fluidic circuit a second filter subchamber having an upstream end and a downstream end and a second filter dividing the upstream end of said second filter subchamber from the downstream end of said second filter subchamber, with said upstream end being in registry with said input end to receive liquid from said source of liquid;
- defining an inter-circuit transverse bypass lumen or liquid flow path positioned downstream of the first filter subchamber and downstream of the second filter subchamber;
- incorporating in said first side, an inlet in communication with said first filter subchamber and with said inter-circuit transverse bypass lumen or liquid flow path;
- and an outlet throat leading through an outlet orifice to ambient at said output end to spray said fluid to ambient;
- incorporating in said second side, an inlet in communication with said second filter subchamber and with said inter-circuit transverse bypass lumen or liquid flow path;
- and an outlet throat leading through an outlet orifice to ambient at said output end to spray said fluid to ambient;
- enclosing said fluid oscillator circuit substrate or chip in a housing having at least one fluid inlet port;
- and wherein said at least one fluid inlet port is configured to simultaneously provide inlet fluid to said upstream ends of said first and second filter subchambers, whereby inlet fluid flowing through said first or second filter subchambers may pass through said inter-circuit transverse bypass lumen or liquid flow path and into said first or second fluidic circuits.
8 more elements
Dependencies are inferred from the claim text.