Patents by Inventor Stephen M. Bertling

Stephen M. Bertling 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).

  • Patent number: 7621737
    Abstract: A die assembly includes a die housing having a multiplicity of inner wall sections defining a die cavity, an inlet passageway passing through the die housing in fluid communication with the die cavity, and an outlet passageway passing through the die housing in fluid communication with the die cavity at a position distal from the inlet passageway. The die assembly also includes an insert removably received in the die cavity. The insert includes a body portion having a multiplicity of outer wall sections, and at least one flow channel is formed between at least one inner wall section of the die housing and each opposite outer wall section of the body portion of the insert; fluid communicates between the external supply and each of the flow channels and the outlet passageway. Also provided is a die insert and a method of purging gas from a die having an insert.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: November 24, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Scott L. Ciliske, Mikhail L. Pekurovsky, Steven D. Solomonson, Stephen M. Bertling
  • Publication number: 20080018009
    Abstract: The disclosure relates to a die assembly. The die assembly includes a die housing having a plurality of inner wall sections defining a die cavity, an inlet passageway passing through the die housing in fluid communication with the die cavity, and an outlet passageway passing through the die housing in fluid communication with the die cavity at a position distal from the inlet passageway. The die assembly also includes an insert removably received in the die cavity. The insert includes a body portion having a plurality of outer wall sections, and at least one flow channel is formed between at least one inner wall section of the die housing and each opposite outer wall section of the body portion of the insert. The die assembly includes a means for providing fluid communication between the external supply of fluent material and each of the at least one flow channel and the outlet passageway.
    Type: Application
    Filed: July 19, 2006
    Publication date: January 24, 2008
    Inventors: Scott L. Ciliske, Mikhail L. Pekurovsky, Steven D. Solomonson, Stephen M. Bertling
  • Patent number: D878683
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: March 17, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Peter L. Axelsson, Pernilla M. NolÄkers, Christina E. S. Wester, Stephen M. Bertling