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).

  • Publication number: 20170341090
    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: Application
    Filed: May 10, 2017
    Publication date: November 30, 2017
    Inventors: Andrew Cameron, Evan Hartranft, Shridhar Gopalan
  • Patent number: 9821324
    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: April 19, 2012
    Date of Patent: November 21, 2017
    Assignee: dlhBowles, Inc.
    Inventors: Evan Hartranft, Shridhar Gopalan, Gregory Russell
  • Publication number: 20170216852
    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: Application
    Filed: February 15, 2017
    Publication date: August 3, 2017
    Inventors: Shridhar GOPALAN, Evan HARTRANFT, Russell HESTER
  • Publication number: 20170065990
    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: Application
    Filed: March 24, 2015
    Publication date: March 9, 2017
    Applicant: dlhBOWLES, Inc.
    Inventors: Shridhar Gopalan, Evan Hartranft
  • Publication number: 20160030954
    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: Application
    Filed: June 12, 2015
    Publication date: February 4, 2016
    Applicant: Bowles Fluidics Corporation
    Inventors: Shridhar Gopalan, Evan Hartranft
  • Publication number: 20160001330
    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: January 7, 2016
    Inventors: ALAN ROMACK, Keith Berning, Russell Hester, Evan Hartranft, Robert Bower, Srinivasaiah Sridhara, Eric Koehler
  • Patent number: 9089856
    Abstract: An automatically alignable conformal, cup-shaped fluidic nozzle engineered to generate an oscillating spray is configured as a cylindrical cup having a substantially open proximal end and a substantially closed distal end wall with a centrally located power nozzle defined therein and between first and second distally projecting alignment tabs or wall segments. Optionally, the fluidic circuit's oscillation inducing geometry is molded directly into the sealing post's distal surface and a one-piece cup provides the discharge orifice.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 28, 2015
    Assignee: Bowles Fluidics Corporation
    Inventors: Shridhar Gopalan, Evan Hartranft, Gregory Russell
  • Patent number: 9067221
    Abstract: A filtering nozzle assembly or spray head has a conformal nozzle component engineered to generate a filtered spray and configured as a small cylindrical member having a substantially open proximal end and a substantially closed distal end wall with a centrally located discharge orifice defined therein. Optionally, cup-shaped filtered orifice defining member also includes a fluidic circuit's oscillation inducing geometry molded into the cup or directly into the distal surface of a sealing post and the one-piece filter cup provides the fluidic circuit's discharge orifice.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: June 30, 2015
    Assignee: Bowles Fluidics Corporation
    Inventors: Shridhar Gopalan, Evan Hartranft, Gregory Russell
  • Publication number: 20140291423
    Abstract: A filtering nozzle assembly or spray head has a conformal nozzle component engineered to generate a filtered spray and configured as a small cylindrical member having a substantially open proximal end and a substantially closed distal end wall with a centrally located discharge orifice defined therein. Optionally, cup-shaped filtered orifice defining member also includes a fluidic circuit's oscillation inducing geometry molded into the cup or directly into the distal surface of a sealing post and the one-piece filter cup provides the fluidic circuit's discharge orifice.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 2, 2014
    Applicant: BOWLES FLUIDICS CORPORATION
    Inventors: Shridhar Gopalan, Evan Hartranft, Gregory Russell
  • Publication number: 20140263742
    Abstract: An automatically alignable conformal, cup-shaped fluidic nozzle engineered to generate an oscillating spray is configured as a cylindrical cup having a substantially open proximal end and a substantially closed distal end wall with a centrally located power nozzle defined therein and between first and second distally projecting alignment tabs or wall segments. Optionally, the fluidic circuit's oscillation inducing geometry is molded directly into the sealing post's distal surface and a one-piece cup provides the discharge orifice.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: BOWLES FLUIDICS CORPORATION
    Inventors: Shridhar Gopalan, Evan Hartranft, Gregory Russell
  • Publication number: 20140145009
    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: April 19, 2012
    Publication date: May 29, 2014
    Inventors: Evan Hartranft, Sridhan Gopalan, Gregory Russell
  • Publication number: 20140060582
    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: March 12, 2012
    Publication date: March 6, 2014
    Inventors: Evan Hartranft, Robert Bower, Srinivasaiah Sridhar, Alan Romack, Keith Berning, Russell Hester, Eric Koehler
  • Patent number: D712009
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: August 26, 2014
    Assignee: Bowles Fluidics Corporation
    Inventors: Shridhar Gopalan, Evan Hartranft, Gregory Russell