Patents by Inventor Merlin J. Steffen

Merlin J. Steffen 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).

  • Die lip for strip coating
    Patent number: 7455897
    Abstract: The invention is a contact die for dispensing of flowable material on a substrate. The contact die includes at least one die block including a first internal passage. A die lip portion is disposed on the die block having a lateral dimension. A first plurality of orifices is disposed through the die lip portion proximate to each other and in communication with the internal passage to dispense flowable material as a single strip on the substrate. A first edge is disposed on one lateral side of the first plurality of orifices to direct the flowable material.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: November 25, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Pentti K. Loukusa, Kurt W. Oster, Todd L. Peterson, Robert B. Secor, Rebecca A. Shipman, Merlin J. Steffen
  • Die lip for strip coating
    Patent number: 6803076
    Abstract: The invention is a contact die for dispensing of flowable material on a substrate. The contact die includes at least one die block including a first internal passage. A die lip portion is disposed on the die block having a lateral dimension. A first plurality of orifices is disposed through the die lip portion proximate to each other and in communication with the internal passage to dispense flowable material as a single strip on the substrate. A first edge is disposed on one lateral side of the first plurality of orifices to direct the flowable material.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: October 12, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Pentti K. Loukusa, Kurt W. Oster, Todd L. Peterson, Robert B. Secor, Rebecca A. Shipman, Merlin J. Steffen
  • Die lip for strip coating
    Publication number: 20030192473
    Abstract: The invention is a contact die for dispensing of flowable material on a substrate. The contact die includes at least one die block including a first internal passage. A die lip portion is disposed on the die block having a lateral dimension. A first plurality of orifices is disposed through the die lip portion proximate to each other and in communication with the internal passage to dispense flowable material as a single strip on the substrate. A first edge is disposed on one lateral side of the first plurality of orifices to direct the flowable material.
    Type: Application
    Filed: October 23, 2002
    Publication date: October 16, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Pentti K. Loukusa, Kurt W. Oster, Todd L. Peterson, Robert B. Secor, Rebecca A. Shipman, Merlin J. Steffen