Patents by Inventor Gregory J. Prellwitz

Gregory J. Prellwitz 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).

  • Method and apparatus for making bag using ultrasonic sealing
    Patent number: 11752703
    Abstract: A method and apparatus for making bags or pouches is disclosed. An ultrasonic sealer may be used to form the seals. Sealing patterns may be used to provide a desired strength profile.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: September 12, 2023
    Assignee: CMD Corporation
    Inventors: Christopher L. White, Gregory J. Prellwitz, Timothy J. Rymer, Curt A. Frievalt
  • Method and apparatus for making bag using ultrasonic sealing
    Patent number: 10946591
    Abstract: A method and apparatus for making bags or pouches is disclosed. An ultrasonic sealer may be used to form the seals. Sealing patterns may be used to provide a desired strength profile.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: March 16, 2021
    Assignee: CMD Corporation
    Inventors: Christopher L. White, Gregory J. Prellwitz, Timothy J. Rymer, Curt A. Frievalt
  • METHOD AND APPARATUS FOR MAKING BAG USING ULTRASONIC SEALING
    Publication number: 20210031463
    Abstract: A method and apparatus for making bags or pouches is disclosed. An ultrasonic sealer may be used to form the seals. Sealing patterns may be used to provide a desired strength profile.
    Type: Application
    Filed: September 30, 2020
    Publication date: February 4, 2021
    Applicant: CMD Corporation
    Inventors: Christopher L. White, Gregory J. Prellwitz, Timothy J. Rymer, Curt A. Frievalt
  • Method and Apparatus For Making Bag Using Ultrasonic Sealing
    Publication number: 20190030833
    Abstract: A method and apparatus for making bags or pouches is disclosed. An ultrasonic sealer may be used to form the seals. Sealing patterns may be used to provide a desired strength profile.
    Type: Application
    Filed: October 3, 2018
    Publication date: January 31, 2019
    Applicant: CMD Corporation
    Inventors: Christopher L. White, Gregory J. Prellwitz, Timothy J. Rymer, Curt A. Frievalt
  • Method and Apparatus For Banding Rolls With Paper
    Publication number: 20170267384
    Abstract: A method and apparatus for banding rolls of bags is disclosed. It can include a bag machine and/or a winder as the source of rolls. The bander includes multiple banding stations. The source of rolls provides rolls at a faster rate than any banding station can apply bands. By selectively using each banding station the bander can have the same throughput as the source of rolls of bags.
    Type: Application
    Filed: March 20, 2017
    Publication date: September 21, 2017
    Applicant: CMD Corporation
    Inventors: Paul A. Selle, Christopher L. White, Thomas C. Jansen, Gregory J. Prellwitz, Gregory Johnson