Patents Assigned to Pulmac Systems International, Inc.
  • Patent number: 11214925
    Abstract: A system for treating recycled cellulosic fibers to improve paper, board and tissue quality; the system involves fractionating recycled fibers into a short fiber portion and a long fiber portion. The short fiber portion is split into an original short fiber portion and a refinable portion. The refinable portion is processed into glue pulp. The glue pulp is refined to targeted, measured fiber properties. Varying amounts of the glue pulp, original short unrefined fibers, and long unrefined fibers are blended together to form an optimized slurry that is processed by a paper machine into an optimized recycled paper product. The process provides for improved drainage with the same or better paper properties allowing for cost reductions in fabrication.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: January 4, 2022
    Assignee: Pulmac Systems International, Inc.
    Inventors: Robert Joseph White, Wavell Frederick Cowan
  • Publication number: 20210189652
    Abstract: A system for treating recycled cellulosic fibers to improve paper, board and tissue quality; the system involves fractionating recycled fibers into a short fiber portion and a long fiber portion. The short fiber portion is split into an original short fiber portion and a refinable portion. The refinable portion is processed into glue pulp. The glue pulp is refined to targeted, measured fiber properties. Varying amounts of the glue pulp, original short unrefined fibers, and long unrefined fibers are blended together to form an optimized slurry that is processed by a paper machine into an optimized recycled paper product. The process provides for improved drainage with the same or better paper properties allowing for cost reductions in fabrication.
    Type: Application
    Filed: March 8, 2021
    Publication date: June 24, 2021
    Applicant: Pulmac Systems International, Inc.
    Inventors: Robert Joseph White, Wavell Frederick Cowan
  • Patent number: 10941520
    Abstract: A system for treating cellulosic fibers to improve paper, board and tissue quality; the system involves splitting fibers into an original portion having original fibers and a refinable portion. The refinable portion may further be fractionated by one or more fibers properties by a fiber fractionation system into a first fraction and a second fraction. The refinable portion as a whole, or a fractionated fraction thereof, is then refined to produce refined fibers. Varying amounts of the original unrefined fibers, refined fibers and possibly additionally fractionated unrefined fibers are blended together to form an optimized slurry that is processed by a paper machine into an optimized paper product. A master control system, fiber measurement system and optional fractionation maintenance system may be integrated with the overall system to regulate all processing.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: March 9, 2021
    Assignee: Pulmac Systems International, Inc.
    Inventors: Joffrey Dard Cowan, Wavell Fredrick Cowan, Robert Joseph White
  • Patent number: 10400394
    Abstract: A method for treating cellulosic fibers to improve paper, board and tissue quality; the method involves splitting fibers from feed pulp into an original portion containing original fibers and a refineable portion containing original fibers. The refinable portion is refined to create a refined portion containing refined fibers. Varying amounts of the original unrefined fibers and refined fibers are blended together to form a recombined slurry that is processed by a paper machine into an optimized paper product. A master control system and fiber measurement system are integrated with the overall system to regulate all processing.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: September 3, 2019
    Assignee: Pulmac Systems International, Inc.
    Inventors: Joffrey Dard Cowan, Wavell Frederick Cowan, Robert Joseph White
  • Publication number: 20180313034
    Abstract: A system for treating cellulosic fibers to improve paper, board and tissue quality; the system involves splitting fibers into an original portion having original fibers and a refinable portion. The refinable portion may further be fractionated by one or more fibers properties by a fiber fractionation system into a first fraction and a second fraction. The refinable portion as a whole, or a fractionated fraction thereof, is then refined to produce refined fibers. Varying amounts of the original unrefined fibers, refined fibers and possibly additionally fractionated unrefined fibers are blended together to form an optimized slurry that is processed by a paper machine into an optimized paper product. A master control system, fiber measurement system and optional fractionation maintenance system may be integrated with the overall system to regulate all processing.
    Type: Application
    Filed: June 29, 2018
    Publication date: November 1, 2018
    Applicant: Pulmac Systems International, Inc.
    Inventors: Joffrey Dard Cowan, Wavell Fredrick Cowan, Robert Joseph White
  • Patent number: 10041209
    Abstract: A system for treating cellulosic fibers to improve paper, board and tissue quality; the system involves splitting fibers into an original portion having original fibers and a refinable portion. The refinable portion may further be fractionated by one or more fibers properties by a fiber fractionation system into a first fraction and a second fraction. The refinable portion as a whole, or a fractionated fraction thereof, is then refined to produce refined fibers. Varying amounts of the original unrefined fibers, refined fibers and possibly additionally fractionated unrefined fibers are blended together to form an optimized slurry that is processed by a paper machine into an optimized paper product. A master control system, fiber measurement system and optional fractionation maintenance system are integrated with the overall system to regulate all processing.
    Type: Grant
    Filed: August 20, 2016
    Date of Patent: August 7, 2018
    Assignee: Pulmac Systems International, Inc.
    Inventors: Joffrey Dard Cowan, Wavell Frederick Cowan, Robert Joseph White