Patents by Inventor R. Stewart

R. Stewart 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: 20210245184
    Abstract: A fluid cartridge for a plural component sprayer is configured to receive first and second component materials and purge air from the sprayer and provide the first and second component materials and purge air to a mix chamber for spraying. The fluid cartridge includes a cartridge body, material flowpaths extending from a second end to a cartridge bore, and a purge path extending from the second end to the cartridge bore. Fluid checks are disposed in the material flowpaths and purge path to prevent backflow out of the fluid cartridge. Side seals are disposed in the material paths and are pre-loaded to extend into the cartridge bore and engage a mix chamber within the cartridge bore.
    Type: Application
    Filed: April 29, 2021
    Publication date: August 12, 2021
    Inventors: Daniel P. Ross, Joseph E. Tix, Samuel R. Stewart, Mark T. Weinberger, Christopher J. Pellin, Jeffrey N. Velgersdyk
  • Publication number: 20210235704
    Abstract: Disclosed are methods of enhancing plant growth, comprising treating plant seed or the plant that germinates from the seed with an effective amount of at least two lipo-chitooligosaccharides, wherein upon harvesting the plant exhibits at least one of increased plant yield measured in terms of bushels/acre, increased root number, increased root length, increased root mass, increased root volume and increased leaf area, compared to untreated plants or plants harvested from untreated seed.
    Type: Application
    Filed: December 13, 2018
    Publication date: August 5, 2021
    Applicant: NOVOZYMES BIOAG A/S
    Inventors: R. Stewart Smith, Ahsan Habib
  • Patent number: 11079528
    Abstract: A method of making a polarizer can include applying a liquid with solid inorganic nanoparticles dispersed throughout a continuous phase, then forming this into a different phase including a solid, interconnecting network of the inorganic nanoparticles. This method can improve manufacturability and reducing manufacturing cost. This method can be used to provide an antireflective coating, to provide a protective coating on polarization structures, to provide thin films for optical properties, or to form the polarization structures themselves.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: August 3, 2021
    Assignee: Moxtek, Inc.
    Inventors: Bradley R. Williams, R. Stewart Nielson, Anubhav Diwan, Eric Gardner, Shaun Patrick Ogden, Bob West
  • Publication number: 20210229113
    Abstract: A spray tip is configured to atomize thick, viscous fluids. The spray tip includes a pre-orifice piece having an inlet orifice that defines a first restriction in a fluid path through the spray tip. The spray tip also includes a tip piece having an outlet orifice that defines a second restriction in the fluid path. The first and second restrictions are the portions of the fluid path having the smallest flow areas. A cross-sectional area of the outlet orifice is greater than a cross-sectional area of the inlet orifice.
    Type: Application
    Filed: November 20, 2020
    Publication date: July 29, 2021
    Inventors: Samuel R. Stewart, Robert W. Kinne
  • Publication number: 20210223450
    Abstract: A method for making a wire grid polarizer (WGP) can provide WGPs with high temperature resistance, robust wires, oxidation resistance, and corrosion protection. In one embodiment, the method can comprise: (a) providing an array of wires on a bottom protection layer; (b) applying a top protection layer on the wires, spanning channels between wires; then (c) applying an upper barrier-layer on the top protection layer and into the channels through permeable junctions in the top protection layer. In a variation of this embodiment, the method can further comprise applying a lower barrier-layer before applying the top protection layer. In another variation, the bottom protection layer and the top protection layer can include aluminum oxide. In another embodiment, the method can comprise applying on the WGP an amino phosphonate then a hydrophobic chemical.
    Type: Application
    Filed: April 1, 2021
    Publication date: July 22, 2021
    Inventors: R. Stewart Nielson, Matthew C. George, Shaun Ogden, Brian Bowers
  • Publication number: 20210170426
    Abstract: A tip piece for a sprayer includes a tip body extending between a first end and a second end. A passage extends inside the tip body from the first end to a terminal end between the first end and the second end of the tip body. A nozzle extends into the tip body from the second end of the tip body and intersects the terminal end of the passage to form an orifice. A rounded interface is formed on a perimeter of the orifice between the nozzle and the terminal end of the passage.
    Type: Application
    Filed: November 16, 2020
    Publication date: June 10, 2021
    Inventors: Samuel R. Stewart, Calvin K. Henrikson, Robert J. Lind, Jeffrey N. Velgersdyk
  • Patent number: 11002899
    Abstract: A method for making a wire grid polarizer (WGP) can provide WGPs with high temperature resistance, robust wires, oxidation resistance, and corrosion protection. In one embodiment, the method can comprise: (a) providing an array of wires on a bottom protection layer; (b) applying a top protection layer on the wires, spanning channels between wires; then (c) applying an upper barrier-layer on the top protection layer and into the channels through permeable junctions in the top protection layer. In a variation of this embodiment, the method can further comprise applying a lower barrier-layer before applying the top protection layer. In another variation, the bottom protection layer and the top protection layer can include aluminum oxide. In another embodiment, the method can comprise applying on the WGP an amino phosphonate then a hydrophobic chemical.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: May 11, 2021
    Assignee: Moxtek, Inc.
    Inventors: R. Stewart Nielson, Matthew C. George, Shaun Ogden, Brian Bowers
  • Publication number: 20210060255
    Abstract: An auto-injector apparatus includes a flexible container containing a liquid medicant, a needle communicated with a container, a housing with a container being received in the housing, pump disposed in the housing and positioned to engage the flexible container and expel the medicant from the container through the needle upon relative movement between the pump and the container, and a main drive spring operably associated with the needle to extend the needle from a first needle position wherein the needle completely received in the housing to a second needle position wherein the needle protrudes from the using. The pump may be a roller.
    Type: Application
    Filed: July 28, 2020
    Publication date: March 4, 2021
    Inventors: Colin J. Mathews, Chris J. Hurlstone, Ben G. Turner, Oliver T. Harvey, Dominic C. Reber, John G. Wilmot, Clarence M. Mesa, Robert L. Hill, James R. Stewart
  • Publication number: 20210063622
    Abstract: A wire grid polarizer (WGP) can include an array of support-ribs on a substrate. Sides of the support-ribs can be inclined to one side. A wire can be applied on an upper-side and distal end of each support-rib, each wire being separate from wires on adjacent support-ribs. The WGP can be made with reduced or no etching.
    Type: Application
    Filed: August 13, 2020
    Publication date: March 4, 2021
    Inventors: R. Stewart Nielson, Bradley R. Williams, Bob West
  • Publication number: 20210063623
    Abstract: An optical device can comprise wires 12 on a face of a substrate 11, with channel(s) 13 between adjacent wires 12. Each wire 12 can include embedded organic moieties. Each wire 12 can include multiple ribs 31. Part or all of the wire 12, the substrate 11, or both can have a high refractive index n and a low extinction coefficient k. The optical device can have reduced separation of layers of different materials during flexing and temperature changes. The optical device can be manufactured by a method designed for improved manufacturability.
    Type: Application
    Filed: August 13, 2020
    Publication date: March 4, 2021
    Inventors: Anubhav Diwan, Bradley R. Williams, R. Stewart Nielson
  • Publication number: 20210033767
    Abstract: It would be advantageous to improve polarizer high temperature resistance, corrosion resistance, oxidation resistance, optical properties, and etchability. Composite polarizer materials can be used to achieve this. A polarizer can comprise polarization structures configured for polarization of light. The polarization structures can include a reflective rib, the reflective rib being a composite of two different elements. The polarization structures can include an absorptive rib, the absorptive rib being a composite of two different elements. The polarizer can include a transparent layer, the transparent layer being a composite of two different elements.
    Type: Application
    Filed: July 15, 2020
    Publication date: February 4, 2021
    Inventor: R. Stewart Nielson
  • Publication number: 20210018670
    Abstract: Each wire of a wire grid polarizer (WGP) can include the following layers moving outwards from the substrate: a high-index-layer, a low-index-layer, and a reflective-layer. Each wire can have a distal-end, farthest from the substrate, with a convex shape. These layers and the convex shape can be combined for a more stable and improved Rs.
    Type: Application
    Filed: July 2, 2020
    Publication date: January 21, 2021
    Inventors: R. Stewart Nielson, Bradley R. Williams
  • Publication number: 20210018669
    Abstract: A reflective wire grid polarizer (WGP) can include an array of wires 12 on a face of a substrate 11, with channels 15 between adjacent wires 12. The wires 12 can have certain characteristics for WGP performance, such as index of refraction, alternating high/low index continuous thin films, thickness of layer(s), duty cycle, reflective rib shape, a curved side of transparent ribs 21 or 32, aspect ratio, or combinations thereof.
    Type: Application
    Filed: July 2, 2020
    Publication date: January 21, 2021
    Inventors: Daniel Bacon-Brown, Michael Black, R. Stewart Nielson, Bradley R. Williams, Benjamin Downard, Jeffrey H. Rice, Jim Pierce
  • Publication number: 20200254182
    Abstract: An auto-injector apparatus includes a flexible container containing a liquid medicant, a needle communicated with a container, a housing with a container being received in the housing, a pump disposed in the housing and positioned to engage the flexible container and expel the medicant from the container through the needle upon relative movement between the pump and the container, and a main drive spring operably as ted with the needle to extend the needle fro a first needle position wherein the needle is completely received in the housing to a second needle position wherein the needle protrudes from the housing. The pump may be a roller.
    Type: Application
    Filed: October 18, 2019
    Publication date: August 13, 2020
    Inventors: Colin J. Mathews, Chris J. Hurlstone, Ben G. Turner, Oliver T. Harvey, Dominic C. Reber, John G. Wilmot, Clarence M. Mesa, Robert L. Hill, James R. Stewart
  • Publication number: 20200187506
    Abstract: Disclosed are methods of enhancing plant growth, comprising treating plant seed or the plant that germinates from the seed with an effective amount of at least two lipo-chitooligosaccharides, wherein upon harvesting the plant exhibits at least one of increased plant yield measured in terms of bushels/acre, increased root number, increased root length, increased root mass, increased root volume and increased leaf area, compared to untreated plants or plants harvested from untreated seed.
    Type: Application
    Filed: December 13, 2018
    Publication date: June 18, 2020
    Applicant: NOVOZYMES BIOAG A/S
    Inventors: R. Stewart Smith, Ahsan Habib
  • Patent number: 10656309
    Abstract: A wire grid polarizer (WGP) can be durable and have high performance. The WGP can comprise an array of wires 13 on a substrate 11. An overcoat layer 32 can be located at distal ends of the array of wires 13 and can span channels 15 between the wires 13. A conformal-coat layer 61 can coat sides 13s and distal ends 13d of the wires 13 between the wires 13 and the overcoat layer 32. The overcoat layer can comprise aluminum oxide. An antireflection layer 33 can be located over the overcoat layer 32.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: May 19, 2020
    Assignee: Moxtek, Inc.
    Inventors: R. Stewart Nielson, Bradley R. Williams, Mathew Free, Ted Wangensteen
  • Patent number: D904562
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: December 8, 2020
    Assignee: Graco Minnesota Inc.
    Inventors: Samuel R. Stewart, Jacob R. Whiteoak, Jack A. Bosak, Daniel P. Ross
  • Patent number: D904565
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: December 8, 2020
    Assignee: Graco Minnesota Inc.
    Inventors: Daniel P. Ross, Samuel R. Stewart, Jacob R. Whiteoak, Jack A. Bosak
  • Patent number: D918337
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: May 4, 2021
    Assignee: Graco Minnesota Inc.
    Inventors: Daniel P. Ross, Samuel R. Stewart, Jacob R. Whiteoak, Jack A. Bosak
  • Patent number: D922521
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: June 15, 2021
    Assignee: Graco Minnesota Inc.
    Inventors: Daniel P. Ross, Samuel R. Stewart, Jacob R. Whiteoak, Jack A. Bosak