Patents by Inventor Broder Nielsen

Broder Nielsen 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).

  • Vacuum packaging apparatus and process
    Patent number: 4583347
    Abstract: A vacuum packaging process and apparatus employ the novel step of deliberately at least partially repressurizing the exterior of a flexible packaging receptacle after commencement of the evacuation of the exterior and interior of the receptacle in a chamber. The receptacle is closed after the receptacle has been pressed against the article located in the receptacle by repressurization.
    Type: Grant
    Filed: June 11, 1985
    Date of Patent: April 22, 1986
    Assignee: W. R. Grace & Co., Cryovac Div.
    Inventor: Broder Nielsen