Patents Assigned to Andritz Ltd.
  • Patent number: 11906245
    Abstract: An exemplary process air recirculation system, and an electric heater mixing apparatus is disclosed herein. Exemplary process air recirculation systems comprise the electric heating mixing apparatus. An exemplary electric heating mixing apparatus comprises: walls defining a first chamber having a first upstream opening and a first downstream opening, and a second chamber having a first upstream opening and a first downstream opening, wherein the second chamber is adjacently disposed to the first chamber, a first inlet damper disposed at the first upstream opening, a second inlet damper disposed at the second upstream opening, and a resistance-type electric air heater disposed in the first chamber.
    Type: Grant
    Filed: April 18, 2023
    Date of Patent: February 20, 2024
    Assignees: CMPC TISSUE S.A., ANDRITZ LTD.
    Inventors: Reinaldo Augusto Uribe Arancibia, George Z. Nowakowski
  • Publication number: 20230251034
    Abstract: An exemplary process air recirculation system, and an electric heater mixing apparatus is disclosed herein. Exemplary process air recirculation systems comprise the electric heating mixing apparatus. An exemplary electric heating mixing apparatus comprises: walls defining a first chamber having a first upstream opening and a first downstream opening, and a second chamber having a first upstream opening and a first downstream opening, wherein the second chamber is adjacently disposed to the first chamber, a first inlet damper disposed at the first upstream opening, a second inlet damper disposed at the second upstream opening, and a resistance-type electric air heater disposed in the first chamber.
    Type: Application
    Filed: April 18, 2023
    Publication date: August 10, 2023
    Applicants: CMPC Tissue S.A., Andritz Ltd.
    Inventors: Reinaldo Augusto Uribe Arancibia, George Z. Nowakowski
  • Patent number: 11662142
    Abstract: An exemplary process air recirculation system, and an electric heater mixing apparatus is disclosed herein. Exemplary process air recirculation systems comprise the electric heating mixing apparatus. An exemplary electric heating mixing apparatus comprises: walls defining a first chamber having a first upstream opening and a first downstream opening, and a second chamber having a first upstream opening and a first downstream opening, wherein the second chamber is adjacently disposed to the first chamber, a first inlet damper disposed at the first upstream opening, a second inlet damper disposed at the second upstream opening, and a resistance-type electric air heater disposed in the first chamber.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: May 30, 2023
    Assignees: CMPC Tissue S.A., Andritz Ltd.
    Inventors: Reinaldo Augusto Uribe Arancibia, George Z. Nowakowski
  • Publication number: 20220316799
    Abstract: An exemplary process air recirculation system, and an electric heater mixing apparatus is disclosed herein. Exemplary process air recirculation systems comprise the electric heating mixing apparatus. An exemplary electric heating mixing apparatus comprises: walls defining a first chamber having a first upstream opening and a first downstream opening, and a second chamber having a first upstream opening and a first downstream opening, wherein the second chamber is adjacently disposed to the first chamber, a first inlet damper disposed at the first upstream opening, a second inlet damper disposed at the second upstream opening, and a resistance-type electric air heater disposed in the first chamber.
    Type: Application
    Filed: April 6, 2021
    Publication date: October 6, 2022
    Applicants: CMPC TISSUE S.A., ANDRITZ LTD.
    Inventors: Reinaldo Uribe Arancibia, George Z. Nowakowski
  • Patent number: 11135534
    Abstract: A modular support structure comprising multiple chord or arc modules configured to selectively fixedly engage adjacent modules to define a completed annular support structure configured to support a rotary element of a rotary filter. The modular chord or arc segments may fixedly engaged an adjacent chord or arc segment through a fixing mechanism selected from the group consisting of: fasteners, clamps, pins, bolts, locks, locking mechanisms, key and socket mechanisms, spot welding, welding, adhesives, and other fastening mechanisms configured to engage and disengage adjacent chord or arc modules with ease.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: October 5, 2021
    Assignee: ANDRITZ LTD.
    Inventors: Christian Harpin, Phil Morency
  • Publication number: 20200070072
    Abstract: A modular support structure comprising multiple chord or arc modules configured to selectively fixedly engage adjacent modules to define a completed annular support structure configured to support a rotary element of a rotary filter. The modular chord or arc segments may fixedly engaged an adjacent chord or arc segment through a fixing mechanism selected from the group consisting of: fasteners, clamps, pins, bolts, locks, locking mechanisms, key and socket mechanisms, spot welding, welding, adhesives, and other fastening mechanisms configured to engage and disengage adjacent chord or arc modules with ease.
    Type: Application
    Filed: November 17, 2017
    Publication date: March 5, 2020
    Applicant: Andritz Ltd.
    Inventors: Christian HARPIN, Phil MORENCY
  • Patent number: 8137568
    Abstract: Prior art washer designs have segmented radial ducts feeding the filter valve which collect the filtrate emerging from the longitudinal ducts. Because these ducts are radial, the volume at the periphery is much greater than at the valve entry which creates undesirable conditions such as a large volume where air can escape from the filtrate forming a pocket which will reduce the effectiveness of the vacuum and promote non-uniformity in filtrate velocity. The present invention incorporates a baffle in the radial duct which reduces the volume at the periphery and maintains a uniform cross-sectional area for the filtrate to reach the valve. This maintains a constant filtrate velocity and prevents the possibility of the formation of an air pocket.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: March 20, 2012
    Assignee: Andritz Ltd.
    Inventors: Paul Norman Rouillard, Jean Paul Haramboure, John Edward Leddy