Patents by Inventor Bryan Duke

Bryan Duke 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).

  • Self venting piston plugs
    Patent number: 10480498
    Abstract: A piston plug includes a cylindrical body having a longitudinal axis and an outer cylindrical surface. The outer cylindrical surface extends longitudinally between a first surface and a second surface opposite the first surface. The outer cylindrical surface defines a hole extending radially inward. The hole has a central axis perpendicular to the longitudinal axis of the cylindrical body. A first channel and a second channel are defined by cylindrical body. The first channel is in fluidic communication with the first surface and the hole. The second channel is in fluidic communication with the second surface and the hole. The first channel, the second channel, and at least a portion of the hole form a non-collinear flowpath. The piston plug is disposed in a plug hole in a piston and is retained in the plug hole via an interference fit between the piston plug and the plug hole.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: November 19, 2019
    Assignee: DRESSER-RAND COMPANY
    Inventors: Bryan Duke, Malcolm Cliff, Christopher Gowdy, Robert Hostottle, Bryce Sheffler
  • Soluble Fiber Liquid Beverage Concentrate and Method for Delivery of Soluble Fiber
    Publication number: 20180317537
    Abstract: A flavored, fiber-enriched liquid beverage concentrate of an acidulant, a flavor, a high-intensity sweetener, a soluble fiber, and water, the soluble fiber comprising about 20 to 60 percent by weight of the concentrate volume with a pH in a range of about 1.2 to about 4.0. A method of delivering soluble fiber from a liquid beverage concentrate is disclosed.
    Type: Application
    Filed: October 28, 2016
    Publication date: November 8, 2018
    Inventors: Joe Knutzen, James D. Hammer, Bryan Duke
  • Soluble Fiber Liquid Beverage Concentrate And Method For Delivery Of Soluble Fiber
    Publication number: 20170119023
    Abstract: A flavored, fiber-enriched liquid beverage concentrate of an acidulant, a flavor, a high-intensity sweetener, a dietary fiber, and water, the dietary fiber comprising about 20 to 60 percent by weight of the concentrate volume with a pH in a range of about 1.4 to about 4.0. A method of delivering dietary fiber from a liquid beverage concentrate is disclosed.
    Type: Application
    Filed: May 2, 2016
    Publication date: May 4, 2017
    Applicant: Medtech Products Inc.
    Inventors: Josef V. Knutzen, Bryan Duke, James D. Hammer
  • SELF VENTING PISTON PLUGS
    Publication number: 20170009757
    Abstract: A piston plug includes a cylindrical body having a longitudinal axis and an outer cylindrical surface. The outer cylindrical surface extends longitudinally between a first surface and a second surface opposite the first surface. The outer cylindrical surface defines a hole extending radially inward. The hole has a central axis perpendicular to the longitudinal axis of the cylindrical body. A first channel and a second channel are defined by cylindrical body. The first channel is in fluidic communication with the first surface and the hole. The second channel is in fluidic communication with the second surface and the hole. The first channel, the second channel, and at least a portion of the hole form a non-collinear flowpath. The piston plug is disposed in a plug hole in a piston and is retained in the plug hole via an interference fit between the piston plug and the plug hole.
    Type: Application
    Filed: March 10, 2014
    Publication date: January 12, 2017
    Applicant: Dresser-Rand Company
    Inventors: Bryan Duke, Malcolm Cliff, Christopher Gowdy, Robert Hostottle, Bryce Sheffler