Patents by Inventor Evan Hartranft

Evan Hartranft has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11738355
    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.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: August 29, 2023
    Assignee: DLHBOWLES, INC.
    Inventors: Benjamin D. Hasday, Evan Hartranft
  • Publication number: 20230166273
    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.
    Type: Application
    Filed: December 1, 2022
    Publication date: June 1, 2023
    Inventors: Evan Hartranft, Chunling Zhao, Sridhar Gopalan, Gregory A. Russell, Reza Ronghian
  • Patent number: 11628454
    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.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: April 18, 2023
    Assignee: DLHBOWLES, INC.
    Inventors: Evan Hartranft, Samuel Bernstein, Michael Stephenson
  • Patent number: 11154876
    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.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: October 26, 2021
    Assignee: dlhBowles, Inc.
    Inventors: Shridhar Gopalan, Evan Hartranft, Russell Hester
  • Publication number: 20210321582
    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.
    Type: Application
    Filed: April 16, 2021
    Publication date: October 21, 2021
    Inventors: Evan Hartranft, Luis Niquet, Reza Ronaghian
  • Publication number: 20210291204
    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.
    Type: Application
    Filed: May 24, 2021
    Publication date: September 23, 2021
    Inventors: Benjamin D. Hasday, Evan Hartranft
  • Publication number: 20210170429
    Abstract: Spray nozzle assembly (300) is configured to generate a swirled spray (312) with improved rotating velocity w and smaller uniform droplet size. Cup-shaped nozzle member (300) has a body portion (318) with a cylindrical side wall (320) surrounding a central longitudinal spray axis (322), a circular closed end wall (324) and an exit aperture (310) coaxial with the spray axis (322) and defined through the end wall (324). A fluid dynamic circuit (330) is formed in an inner surface (326) of end wall (324) and includes three inwardly tapered power nozzles (302, 304, 306) terminating in an interaction region (308) which is exhausted via the exit aperture (310). The power nozzles have respective longitudinal axes (334, 362, 382) offset with respect to the spray axis (322) with corresponding non-tangential angles of attack (352, 374, 394) configured to efficiently cause a fluid vortex in interaction region (308).
    Type: Application
    Filed: January 27, 2017
    Publication date: June 10, 2021
    Inventors: Shridhar Gopalan, Evan Hartranft, Andrew D. Cameron, Gregory A. Russell
  • Patent number: 11014099
    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.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: May 25, 2021
    Assignee: DLHBOWLES, INC.
    Inventors: Benjamin D. Hasday, Evan Hartranft
  • Publication number: 20200290066
    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.
    Type: Application
    Filed: March 11, 2020
    Publication date: September 17, 2020
    Inventors: Evan Hartranft, Samuel Bernstein, Michael Stephenson
  • Publication number: 20200139385
    Abstract: Provided is a cup shaped nozzle member and dispensing package assembly for dispensing or spraying a pumped or pressurized fluid drawing from a transportable container to generate a spray of fluid. The cup-shaped nozzle member mounted in said dispensing package and including a plurality of interaction chambers defined within the distal end wall wherein each interaction chamber defines a fluid channel that terminates distally in an exit orifice. At least one distally projecting platform rib member spaced from and proximate to said first discharge orifice along an outer surface of the distal end wall, wherein said distally projecting platform rib member has a selected distally projecting length which is at least as great as the length of the first distally projecting protuberance.
    Type: Application
    Filed: November 1, 2019
    Publication date: May 7, 2020
    Inventors: Evan HARTRANFT, Timothy CURRIE, Samuel L. BERNSTEIN
  • Publication number: 20200128153
    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.
    Type: Application
    Filed: September 30, 2019
    Publication date: April 23, 2020
    Inventors: Evan Hartranft, Robert Bower, Srinivasaiah Sridhara, Alan Romack, Keith Berning, Russell Hester, Eric Koehler
  • Patent number: 10493470
    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 ?.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: December 3, 2019
    Inventors: Andrew Cameron, Evan Hartranft, Shridhar Gopalan
  • Patent number: 10432827
    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.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: October 1, 2019
    Assignee: DLHBOWLES, INC.
    Inventors: Evan Hartranft, Robert Bower, Srinivasaiah Sridhara, Alan Romack, Keith Berning, Russell Hester, Eric Koehler
  • Patent number: 10350647
    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.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: July 16, 2019
    Assignee: DLHBOWLES, INC.
    Inventors: Alan Romack, Keith Berning, Russell Hester, Evan Hartranft, Robert Bower, Srinivasaiah Sridhara, Eric Koehler
  • Publication number: 20190143345
    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.
    Type: Application
    Filed: May 3, 2017
    Publication date: May 16, 2019
    Inventors: Benjamin D. Hasday, Evan Hartranft
  • Patent number: 10155232
    Abstract: A conformal, cup-shaped fluidic nozzle engineered to generate an oscillating spray is configured as a (e.g., 100, 400, 600 or 700). Preferably, the fluidic circuit's oscillation inducing geometry 710 is molded directly into the cup's interior wall surfaces and the one-piece fluidic cup may then fitted into an actuator (e.g., 340). The fluidic cup (e.g., 100, 400, 600 or 700) conforms to the actuator stem used in typical aerosol sprayers and trigger sprayers and so replaces the prior art “swirl cup” 70 that goes over the actuator stem (e.g., 320), With the fluidic cup (e.g., 100, 400, 600 or 700) and method of the present invention, vendors of liquid products and fluids sold in commercial aerosol sprayers 20 and trigger sprayers 800 can now provide very specifically tailored or customized sprays.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: December 18, 2018
    Assignee: DLHBOWLES, INC.
    Inventors: Evan Hartranft, Shridhar Gopalan, Gregory Russell
  • Publication number: 20180339313
    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.
    Type: Application
    Filed: July 1, 2014
    Publication date: November 29, 2018
    Inventors: ALAN ROMACK, Keith Berning, Russell Hester, Evan Hartranft, Robert Bower, Srinivasaiah Sridhara, Eric Koehler
  • Patent number: 10130960
    Abstract: A spray dispenser is configured to generate a swirled output spray pattern 152 with improved rotating or angular velocity ? and smaller sprayed droplet size. Cup-shaped nozzle member 60 has a cylindrical side wall 62 surrounding a central longitudinal axis 64 and has a circular closed end wall 68 with at least one exit aperture 74 passing through the end wall. At least one enhanced swirl inducing mist generating structure is formed in an inner surface 70 of the end wall, and including a pair of opposed inwardly tapered offset power nozzle channels 80, 82 terminating in an interaction chamber 84 surrounding the exit aperture 74. The power nozzle channels generate opposing offset flows which are aimed to very efficiently generate a vortex of fluid which projects distally from the exit aperture as a swirled spray of small droplets 152 having a rapid angular velocity.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: November 20, 2018
    Assignee: dlhBOWLES, Inc.
    Inventors: Shridhar Gopalan, Evan Hartranft
  • Patent number: 10092913
    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.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: October 9, 2018
    Assignee: DLHBOWLES, INC.
    Inventors: Shridhar Gopalan, Evan Hartranft
  • Publication number: 20180071754
    Abstract: A conformal, cup-shaped fluidic nozzle engineered to generate an oscillating spray is configured as a (e.g., 100, 400, 600 or 700). Preferably, the fluidic circuit's oscillation inducing geometry 710 is molded directly into the cup's interior wall surfaces and the one-piece fluidic cup may then fitted into an actuator (e.g., 340). The fluidic cup (e.g., 100, 400, 600 or 700) conforms to the actuator stem used in typical aerosol sprayers and trigger sprayers and so replaces the prior art “swirl cup” 70 that goes over the actuator stem (e.g., 320), With the fluidic cup (e.g., 100, 400, 600 or 700) and method of the present invention, vendors of liquid products and fluids sold in commercial aerosol sprayers 20 and trigger sprayers 800 can now provide very specifically tailored or customized sprays.
    Type: Application
    Filed: November 21, 2017
    Publication date: March 15, 2018
    Inventors: Evan Hartranft, Shridhar Gopalan, Gregory Russell