Patents by Inventor Robert Timothy Strathman

Robert Timothy Strathman 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).

  • Extruder with non-stop die change device and method of using same
    Patent number: 11559076
    Abstract: An extruder with a non-stop die change device includes an extrusion cavity, a die change device located at the outlet of the extrusion cavity, and a first die and a second die that are connected to the side wall of a housing of the die change device. A transfer channel is provided in a movable block of the die change device. When the movable block moves to a first position in the housing, the transfer channel communicates to the extrusion cavity with a first channel, and when the movable block moves to a second position in the housing, the transfer channel communicates to the extrusion cavity with a second channel. Therefore, die change and product type change can be achieved without stopping the extruder. If a die is blocked, the extruder does not need to stop for changing a new die.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: January 24, 2023
    Assignee: FAMSUN CO., LTD
    Inventor: Robert Timothy Strathman
  • EXTRUDER WITH NON-STOP DIE CHANGE DEVICE AND METHOD OF USING SAME
    Publication number: 20220022517
    Abstract: An extruder with a non-stop die change device includes an extrusion cavity, a die change device located at the outlet of the extrusion cavity, and a first die and a second die that are connected to the side wall of a housing of the die change device. A transfer channel is provided in a movable block of the die change device. When the movable block moves to a first position in the housing, the transfer channel communicates to the extrusion cavity with a first channel, and when the movable block moves to a second position in the housing, the transfer channel communicates to the extrusion cavity with a second channel. Therefore, die change and product type change can be achieved without stopping the extruder. If a die is blocked, the extruder does not need to stop for changing a new die.
    Type: Application
    Filed: October 11, 2021
    Publication date: January 27, 2022
    Inventor: Robert Timothy Strathman
  • Extruder with non-stop die change device and method of using same
    Patent number: 11178897
    Abstract: An extruder with a non-stop die change device includes an extrusion cavity, a die change device located at the outlet of the extrusion cavity, and a first die and a second die that are connected to the side wall of a housing of the die change device. A transfer channel is provided in a movable block of the die change device. When the movable block moves to a first position in the housing, the transfer channel communicates to the extrusion cavity with a first channel, and when the movable block moves to a second position in the housing, the transfer channel communicates to the extrusion cavity with a second channel. Therefore, die change and product type change can be achieved without stopping the extruder. If a die is blocked, the extruder does not need to stop for changing a new die.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: November 23, 2021
    Assignee: FAMSUN CO., LTD
    Inventors: Robert Timothy Strathman, Liang Ma, Zhe An
  • EXTRUDER WITH NON-STOP DIE CHANGE DEVICE AND METHOD OF USING SAME
    Publication number: 20200054063
    Abstract: An extruder with a non-stop die change device includes an extrusion cavity, a die change device located at the outlet of the extrusion cavity, and a first die and a second die that are connected to the side wall of a housing of the die change device. A transfer channel is provided in a movable block of the die change device. When the movable block moves to a first position in the housing, the transfer channel communicates to the extrusion cavity with a first channel, and when the movable block moves to a second position in the housing, the transfer channel communicates to the extrusion cavity with a second channel. Therefore, die change and product type change can be achieved without stopping the extruder. If a die is blocked, the extruder does not need to stop for changing a new die.
    Type: Application
    Filed: August 30, 2017
    Publication date: February 20, 2020
    Inventors: Robert Timothy Strathman, Liang MA, Zhe AN