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公开(公告)号：US20210321582A1
公开(公告)日：2021-10-21
申请号：US17232899
申请日：2021-04-16
Applicant: DLHBOWLES, INC.
Inventor： Evan Hartranft , Luis Niquet , Reza Ronaghian
Abstract: A clog resistant in-line irrigation emitter or nozzle assembly having an emitter structure designed to be inserted into an extruded tube as part of a drip irrigation system. The nozzle assemblies take the high pressure and flow inside the tube and produce a desired flowrate (selectable depending on the requirements of the environment). The emitter of the present disclosure has a higher efficiency than traditional pivot or sprinkler systems or known emitter devices. The emitters not only provide the appropriate pressure attenuation; they resist clogging from the grit and debris in available ground water. The clog resistant in-line irrigation emitter gives a greater pressure attenuation for its physical dimensions than comparable devices and provides an optimal design of a pressure compensating device that improves diaphragm performance. The instant disclosure does allow for the pressure compensation device to be used with various embodiments of a pressure reducing components.
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公开(公告)号：US20170341090A1
公开(公告)日：2017-11-30
申请号：US15591913
申请日：2017-05-10
Applicant: dlhBowles, Inc.
Inventor： Andrew Cameron , Evan Hartranft , Shridhar Gopalan
IPC: B05B1/04
Abstract: A nozzle and spray dispenser for generating a uniform substantially flat fan spray pattern when spraying high viscosity fluids (i.e., oils, lotions, cleaning liquids, shear-thinning liquids and gels and similar Newtonian and non-Newtonian fluids having viscosities of 10-100 cP) is configured with an exit orifice 134 defining multiple lip segments 150A, 150B, 150C. Cup-shaped nozzle member 100 has a cylindrical side wall 102 surrounding a central longitudinal axis and has a circular closed end wall with at least one exit aperture passing through the end wall 112. At least one enhanced exit orifice structure is formed in an inner surface of the end wall, and includes two to five lip segments of selected width defining edges at the orifice 134, where each edge segment is defined at the distal edge of a separate and distinct interior wall segment 160A, 160B, 160C which has a selected wall convergence angle β.
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公开(公告)号：US20230166273A1
公开(公告)日：2023-06-01
申请号：US18073006
申请日：2022-12-01
Applicant: dlhBOWLES, Inc.
Inventor： Evan Hartranft , Chunling Zhao , Sridhar Gopalan , Gregory A. Russell , Reza Ronghian
Abstract: A fluidic oscillator insert is designed to project a full circumference spray pattern from a single outlet that is characterized by slightly convex or outwardly curving radius and a combination of full and partial protrusions immediately in front of the outlet, in combination with curved walls defining the throat of the outlet (and even outer surfaces of the housing), surprisingly produces full circumference, oscillating spray pattern. Further aspects of the invention include a system and a double exit insert, both of which also produce full circumference oscillating spray patterns.
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公开(公告)号：US11628454B2
公开(公告)日：2023-04-18
申请号：US16815763
申请日：2020-03-11
Applicant: DLHBOWLES, INC.
Inventor： Evan Hartranft , Samuel Bernstein , Michael Stephenson
Abstract: Provided is a dual spray nozzle tip assembly having a geometry that is split into several sub components to enable robust manufacturing and assembly of the resulting nozzle. The nozzle tip assembly is configured to be attached to a device configured to provide a pressurized fluid and gas therefrom. The nozzle tip assembly comprising an elongated body defining a fluid lumen and at least one gas lumen between a distal end and a proximal end. The elongated body including at least an attachment profile, a straight portion, and an outlet region. The outlet region defines a shear nozzle in communication with the fluid lumen and at least one gas outlet in communication with the at least one gas lumen, the outlet region is configured to direct pressurized gas from the at least one gas outlet and to produce a desired spray pattern from the shear nozzle.
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公开(公告)号：US11738355B2
公开(公告)日：2023-08-29
申请号：US17328381
申请日：2021-05-24
Applicant: DLHBOWLES, INC.
Inventor： Benjamin D. Hasday , Evan Hartranft
Abstract: An alignable conformal, cup-shaped flag-mushroom fluidic nozzle assembly is engineered to generate a flat fan or sheet oscillating spray of viscous fluid product 316. The nozzle assembly includes a cylindrical flag mushroom fluidic cup member 180 having a substantially closed distal end wall with a centrally located snout defined therein. The flag mushroom cup assembly effectively splits the operating features of the fluidic circuit between a lower or proximal portion formed in the housing's sealing post member and an upper, or distal portion formed in cup member 180 which, in cooperation with the sealing post's distal surface, defines an interaction chamber 192 fed by impinging jets each comprising a continuous distribution of streamlines that impinge at selected angles to define arcs providing a lesser degree of impingement at a centered axial plane within the exit orifice 194 and a greater degree of impingement at the edges of exit orifice 194.
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Patent Agency Ranking
公开(公告)号：US11154876B2
公开(公告)日：2021-10-26
申请号：US15433845
申请日：2017-02-15
Applicant: dlhBowles, Inc.
Inventor： Shridhar Gopalan , Evan Hartranft , Russell Hester
IPC: B05B1/08
Abstract: A conformal, cup-shaped fluidic oscillator spray nozzle member (100, 200, 300, 400, 500) is configured to generate one or more oscillating sprays from fluid flowing into a substantially open proximal end and distally into a substantially closed distal end wall with one or more centrally located orifices defined therein. A multi-input, multi-output cup-shaped fluidic oscillator (200, 300, 400) is configured to generate a selected fluid spray from a plurality of (e.g., 2-8) fluid product inlets which are configured in interacting pairs and feed into a common interaction region of the fluidic nozzle geometry. Optionally, an outlet “A” can be positioned in the interaction region and allow for air entrainment into the interaction region or external oscillating spray streams to generate a foamed spray of fluid product.
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公开(公告)号：US11014099B2
公开(公告)日：2021-05-25
申请号：US16097985
申请日：2017-05-03
Applicant: DLHBOWLES, INC.
Inventor： Benjamin D. Hasday , Evan Hartranft
Abstract: An alignable conformal, cup-shaped flag-mushroom fluidic nozzle assembly is engineered to generate a flat fan or sheet oscillating spray of viscous fluid product 316. The nozzle assembly includes a cylindrical flag mushroom fluidic cup member 180 having a substantially closed distal end wall with a centrally located snout defined therein. The flag mushroom cup assembly effectively splits the operating features of the fluidic circuit between a lower or proximal portion formed in the housing's sealing post member and an upper, or distal portion formed in cup member 180 which, in cooperation with the sealing post's distal surface, defines an interaction chamber 192 fed by impinging jets each comprising a continuous distribution of streamlines that impinge at selected angles to define arcs providing a lesser degree of impingement at a centered axial plane within the exit orifice 194 and a greater degree of impingement at the edges of exit orifice 194.
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公开(公告)号：US20200290066A1
公开(公告)日：2020-09-17
申请号：US16815763
申请日：2020-03-11
Applicant: DLHBOWLES, INC.
Inventor： Evan Hartranft , Samuel Bernstein , Michael Stephenson
Abstract: Provided is a dual spray nozzle tip assembly having a geometry that is split into several sub components to enable robust manufacturing and assembly of the resulting nozzle. The nozzle tip assembly is configured to be attached to a device configured to provide a pressurized fluid and gas therefrom. The nozzle tip assembly comprising an elongated body defining a fluid lumen and at least one gas lumen between a distal end and a proximal end. The elongated body including at least an attachment profile, a straight portion, and an outlet region. The outlet region defines a shear nozzle in communication with the fluid lumen and at least one gas outlet in communication with the at least one gas lumen, the outlet region is configured to direct pressurized gas from the at least one gas outlet and to produce a desired spray pattern from the shear nozzle.
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公开(公告)号：US10350647B2
公开(公告)日：2019-07-16
申请号：US14320734
申请日：2014-07-01
Applicant: DLHBOWLES, INC.
Inventor： Alan Romack , Keith Berning , Russell Hester , Evan Hartranft , Robert Bower , Srinivasaiah Sridhara , Eric Koehler
IPC: B08B3/02 , B60S1/52 , B60S1/56 , B60R11/04 , G02B27/00 , H04N5/225 , B05B1/08 , B60S1/62 , B60S3/04 , H04N7/18 , B60S1/08
Abstract: An external lens washing system has an aiming fixture configured to support and constrain an external lens which is exposed to the elements and apt to become soiled with debris. A nozzle assembly is configured to be supported and aimed toward the external lens by the aiming fixture and has at least one laterally offset washing nozzle projecting from the aiming fixture to a spray washing fluid toward the external lens surface, spraying at a shallow, glancing spray aiming angle to impinge upon and wash the lens external surface. Optionally, an integrated image sensor and lens washing assembly is configured for use with a remote control method for cleaning an exterior objective lens surface and includes a sealed image sensor housing assembly including an integral, remotely controllable lens cleaning system with an optimized configuration for aiming one or more cleansing sprays from one or more laterally offset fluidic oscillators.
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公开(公告)号：US10092913B2
公开(公告)日：2018-10-09
申请号：US14738024
申请日：2015-06-12
Applicant: DLHBOWLES, INC.
Inventor： Shridhar Gopalan , Evan Hartranft
Abstract: A fluidic circuit configured to spray an oscillating pattern of fluid droplets, having an inlet in fluid communication with a source and including a power nozzle with an oscillation chamber having a fluid jet steering section in fluid communication with the power nozzle and having either (a) a first fluid pressure accumulating volume opposite a second fluid pressure accumulating volume or (b) a first fluid jet attachment feature opposing a second fluid jet attachment feature. The fluid jet steering section is in fluid communication with and emits a fluid jet into an oscillation inducing interaction region with opposing first and second side wall ears or features which define an oscillation inducing interaction region in the oscillation chamber for causing the jet of fluid to rhythmically sweep back and forth between the sidewalls in the oscillation chamber and create a distally projecting oscillating spray.
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