Patents by Inventor John Wrenn

John Wrenn 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).

  • Core with cushion strip and varying slot depth
    Patent number: 11970361
    Abstract: A core for winding sheet material is proved. The core comprises a cylindrical tube having a longitudinally oriented slot formed therein, and a strip of soft material located in the slot. Because of the geometry of the slot and the strip, the strip may be softer (less compressed) in the central region but firmer where the core transitions from the relatively soft strip to the relatively hard tube. The leading edge of the sheet material imbeds itself into the soft central region of the strip as additional layers are wound around the core.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: April 30, 2024
    Assignee: Sonoco Development, Inc.
    Inventors: Brian P. Couchey, John Wrenn
  • Core with strip or strips of varying density
    Patent number: 11661305
    Abstract: A core for winding sheet material is proved. The core comprises a cylindrical tube having a longitudinally oriented slot formed therein, and a strip of soft material located in the slot. Because of the geometry of the slot and the strip, the strip may be softer in the central region but firmer where the core transitions from the relatively soft strip to the relatively hard tube. The leading edge of the sheet material imbeds itself into the soft central region of the strip as additional layers are wound around the core.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: May 30, 2023
    Assignee: Sonoco Development, Inc.
    Inventors: Brian P. Couchey, John Wrenn
  • CORE WITH CUSHION STRIP AND VARYING SLOT DEPTH
    Publication number: 20230095152
    Abstract: A core for winding sheet material is proved. The core comprises a cylindrical tube having a longitudinally oriented slot formed therein, and a strip of soft material located in the slot. Because of the geometry of the slot and the strip, the strip may be softer (less compressed) in the central region but firmer where the core transitions from the relatively soft strip to the relatively hard tube. The leading edge of the sheet material imbeds itself into the soft central region of the strip as additional layers are wound around the core.
    Type: Application
    Filed: December 6, 2022
    Publication date: March 30, 2023
    Applicant: Sonoco Development, Inc.
    Inventors: Brian P. Couchey, John Wrenn
  • CORE WITH STRIP OR STRIPS OF VARYING DENSITY
    Publication number: 20210139268
    Abstract: A core for winding sheet material is proved. The core comprises a cylindrical tube having a longitudinally oriented slot formed therein, and a strip of soft material located in the slot. Because of the geometry of the slot and the strip, the strip may be softer in the central region but firmer where the core transitions from the relatively soft strip to the relatively hard tube. The leading edge of the sheet material imbeds itself into the soft central region of the strip as additional layers are wound around the core.
    Type: Application
    Filed: January 15, 2021
    Publication date: May 13, 2021
    Applicant: Sonoco Development, Inc.
    Inventors: Brian P. Couchey, John Wrenn
  • Core with cushion strip
    Patent number: 10906769
    Abstract: A core for winding sheet material is proved. The core comprises a cylindrical tube having a longitudinally oriented slot formed therein, and a strip of soft material located in the slot. Because of the geometry of the slot and the strip, the strip may be softer in the central region but firmer where the core transitions from the relatively soft strip to the relatively hard tube. The leading edge of the sheet material imbeds itself into the soft central region of the strip as additional layers are wound around the core.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: February 2, 2021
    Assignee: Sonoco Development, Inc.
    Inventors: Brian P. Couchey, John Wrenn
  • Core with Cushion Strip
    Publication number: 20200039782
    Abstract: A core for winding sheet material is proved. The core comprises a cylindrical tube having a longitudinally oriented slot formed therein, and a strip of soft material located in the slot. Because of the geometry of the slot and the strip, the strip may be softer in the central region but firmer where the core transitions from the relatively soft strip to the relatively hard tube. The leading edge of the sheet material imbeds itself into the soft central region of the strip as additional layers are wound around the core.
    Type: Application
    Filed: October 15, 2019
    Publication date: February 6, 2020
    Applicant: Sonoco Development, Inc.
    Inventors: Brian P. Couchey, John Wrenn
  • Core with cushion strip
    Patent number: 10472201
    Abstract: A core for winding sheet material is proved. The core comprises a cylindrical tube having a longitudinally oriented slot formed therein, and a strip of soft material located in the slot. Because of the geometry of the slot and the strip, the strip may be softer in the central region but firmer where the core transitions from the relatively soft strip to the relatively hard tube. The leading edge of the sheet material imbeds itself into the soft central region of the strip as additional layers are wound around the core.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: November 12, 2019
    Assignee: Sonoco Development, Inc.
    Inventors: Brian P. Couchey, John Wrenn
  • Core with Cushion Strip
    Publication number: 20180099835
    Abstract: A core for winding sheet material is proved. The core comprises a cylindrical tube having a longitudinally oriented slot formed therein, and a strip of soft material located in the slot. Because of the geometry of the slot and the strip, the strip may be softer in the central region but firmer where the core transitions from the relatively soft strip to the relatively hard tube. The leading edge of the sheet material imbeds itself into the soft central region of the strip as additional layers are wound around the core.
    Type: Application
    Filed: October 12, 2016
    Publication date: April 12, 2018
    Applicant: Sonoco Development, Inc.
    Inventors: Brian P. Couchey, John Wrenn
  • Aerosol generator including multi-component wick
    Patent number: 9555198
    Abstract: An aerosol generator includes a composite conduit to transport multiple liquids to a heating element at flow rates such that the liquids arrive at the heating element in desirable concentrations. The heating element volatilizes the liquids to form volatilized fluid, which mixes with ambient air to form an aerosol with desirable concentrations of the multiple liquids.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: January 31, 2017
    Assignee: Philip Morris USA Inc.
    Inventors: Zuyin Yang, John Wrenn
  • AEROSOL GENERATOR INCLUDING MULTI-COMPONENT WICK
    Publication number: 20110309157
    Abstract: An aerosol generator includes a composite conduit to transport multiple liquids to a heating element at flow rates such that the liquids arrive at the heating element in desirable concentrations. The heating element volatilizes the liquids to form volatilized fluid, which mixes with ambient air to form an aerosol with desirable concentrations of the multiple liquids.
    Type: Application
    Filed: January 18, 2011
    Publication date: December 22, 2011
    Applicant: Philip Morris USA Inc.
    Inventors: Zuyin Yang, Susan E. Wrenn, John Wrenn