Patents by Inventor David M. Blomberg

David M. Blomberg 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).

  • Publication number: 20150047633
    Abstract: A filtering device 10 that includes a housing 12 having a plurality of subsections 32, 34, and 36 where each subsection contains a filter element 26, 28, and 30. An inlet 18 is disposed at a first location on the housing 12, and an upstream air distribution system is placed in fluid communication with the inlet 18 and with each of the subsections 32, 34, and 36. A downstream air distribution system is located in fluid communication with each subsection 32, 34, and 36, and an outlet 20 is in fluid communication with the downstream air distribution system. The subsections are fashioned such that each subsection 32, 34, and 36 is not in fluid communication with each other. Using a filtering device so constructed, airflow through the device may be better managed to enable overall product service life to be increased while minimizing pressure resistance of the total filter.
    Type: Application
    Filed: November 3, 2014
    Publication date: February 19, 2015
    Inventors: Britton G. Billingsley, David M. Blomberg, Joy L. Manske
  • Patent number: 8899227
    Abstract: A filtering device 10 that includes a housing 12 having a plurality of subsections 32, 34, and 36 where each subsection contains a filter element 26, 28, and 30. An inlet 18 is disposed at a first location on the housing 12, and an upstream air distribution system is placed in fluid communication with the inlet 18 and with each of the subsections 32, 34, and 36. A downstream air distribution system is located in fluid communication with each subsection 32, 34, and 36, and an outlet 20 is in fluid communication with the downstream air distribution system. The subsections are fashioned such that each subsection 32, 34, and 36 is not in fluid communication with each other. Using a filtering device so constructed, airflow through the device may be better managed to enable overall product service life to be increased while minimizing pressure resistance of the total filter.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: December 2, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Britton G. Billingsley, David M. Blomberg, Joy L. Manske
  • Patent number: 8887719
    Abstract: A filtering device 10 that includes a housing 12 having a plurality of subsections 32, 34, and 36 where each subsection is adapted to receive a filter element 26, 28, and 30. An inlet 18 is disposed at a first location on the housing 12, and an upstream air distribution system is placed in fluid communication with the inlet 18 and with each of the subsections 32, 34, and 36. A downstream air distribution system is located in fluid communication with each subsection 32, 34, and 36, and an outlet 20 in fluid communication with the downstream air distribution system. The upstream and downstream air distribution systems are constructed to cause the same airflow velocity through each subsection. Using such a construction, overall product service life may be increased while minimizing pressure resistance of the total filter.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: November 18, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Britton G. Billingsley, David M. Blomberg, Joy L. Manske
  • Publication number: 20140251327
    Abstract: A respiratory mask body defining a breathable air zone for a wearer and having a shut-off valve is provided. In an exemplary embodiment, the mask body includes one or more inlet ports configured to receive one or more breathing air source components. The shut-off valve is operable between a closed position and an open position, and when in a closed position the shut-off valve prevents fluid communication between the one or more inlet ports and the breathable air zone and the shut-off valve returns to an open position in the absence of an applied force.
    Type: Application
    Filed: May 22, 2014
    Publication date: September 11, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: William A. Mittelstadt, Carl W. Raines, III, David R. Stein, Nathan A. Abel, David M. Blomberg, Michael J. Cowell, Gary E. Dwyer, Thomas I. Insley, Michael J. Svendsen, Dylan T. Cosgrove, Kent E. Lageson, Chaodi Li
  • Publication number: 20140216476
    Abstract: A strap retaining device having an actuation arm that may engage a retaining tab is provided. In an exemplary embodiment, the strap retaining device includes a frame, a retention tab pivotally connected to the frame, and an actuation arm connected to the frame and having a first actuation element movable towards the retention tab from a neutral position to an actuated. The first actuation ramp is movable in a first plane to cause the retention tab to move in a second plane that is perpendicular to the first plane.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 7, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Thomas J. Brace, William A. Mittelstadt, David M. Blomberg
  • Publication number: 20140216472
    Abstract: A strap retaining device having an actuation arm that may engage a retaining tab is provided. In an exemplary embodiment, the strap retaining device includes a frame, a retention tab pivotally connected to the frame, and an actuation arm connected to the frame and having a first actuation element movable towards the retention tab from a neutral position to an actuated. The first actuation ramp is movable in a first plane to cause the retention tab to move in a second plane that is perpendicular to the first plane.
    Type: Application
    Filed: February 1, 2013
    Publication date: August 7, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Thomas J. Brace, William A. Mittelstadt, David M. Blomberg
  • Publication number: 20140216475
    Abstract: A respirator apparatus includes a respirator body, a filter cartridge receiver integral with and extending from the respirator body, and a filter cartridge. The filter cartridge includes a nozzle element being integral with the filter cartridge. The respirator body and filter cartridge are configured to be fluidically coupled through sleeve-fit engagement between the filter cartridge receiver and nozzle element and the filter cartridge receiver and nozzle element define an airflow channel.
    Type: Application
    Filed: February 1, 2013
    Publication date: August 7, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: David M. Blomberg, Michael J. Cowell, William A. Mittelstadt, Carl W. Raines, III, Nathan A. Abel
  • Publication number: 20140216474
    Abstract: A respiratory mask body defining a breathable air zone for a wearer and having a shut-off valve is provided. In an exemplary embodiment, the mask body includes one or more inlet ports configured to receive one or more breathing air source components. The shut-off valve is operable between a closed position and an open position, and when in a closed position the shut-off valve prevents fluid communication between the one or more inlet ports and the breathable air zone and the shut-off valve returns to an open position in the absence of an applied force.
    Type: Application
    Filed: February 1, 2013
    Publication date: August 7, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: William A. Mittelstadt, Carl W. Raines, III, David R. Stein, Nathan A. Abel, David M. Blomberg, Michael J. Cowell, Gary E. Dwyer, Thomas I. Insley, Michael J. Svendsen
  • Publication number: 20130340768
    Abstract: A filtering face-piece respirator 10 that comprises a mask body 12 and a harness 14. The mask body 12 includes a supporting frame structure 16 and a filtering structure 18. The frame structure is injection molded onto the filtering structure 18 such that the frame structure 16 becomes bonded to the filtering structure 18. A mask body having such a support structure allows the filtering structure to follow its configuration closely, providing improved aesthetics and collapse resistance to the resulting article.
    Type: Application
    Filed: August 27, 2013
    Publication date: December 26, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Yonas Gebrewold, Michael K. Domroese, Dean R. Duffy, Dwayne D. Daugaard, Nhat Ha T. Nguyen, David M. Blomberg
  • Publication number: 20130152920
    Abstract: A filtering device 10 that includes a housing 12 having a plurality of subsections 32, 34, and 36 where each subsection contains a filter element 26, 28, and 30. An inlet 18 is disposed at a first location on the housing 12, and an upstream air distribution system is placed in fluid communication with the inlet 18 and with each of the subsections 32, 34, and 36. A downstream air distribution system is located in fluid communication with each subsection 32, 34, and 36, and an outlet 20 is in fluid communication with the downstream air distribution system. The subsections are fashioned such that each subsection 32, 34, and 36 is not in fluid communication with each other. Using a filtering device so constructed, airflow through the device may be better managed to enable overall product service life to be increased while minimizing pressure resistance of the total filter.
    Type: Application
    Filed: December 15, 2011
    Publication date: June 20, 2013
    Inventors: Britton G. Billingsley, David M. Blomberg, Joy L. Manske
  • Publication number: 20130152919
    Abstract: A filtering device 10 that includes a housing 12 having a plurality of subsections 32, 34, and 36 where each subsection is adapted to receive a filter element 26, 28, and 30. An inlet 18 is disposed at a first location on the housing 12, and an upstream air distribution system is placed in fluid communication with the inlet 18 and with each of the subsections 32, 34, and 36. A downstream air distribution system is located in fluid communication with each subsection 32, 34, and 36, and an outlet 20 in fluid communication with the downstream air distribution system. The upstream and downstream air distribution systems are constructed to cause the same airflow velocity through each subsection. Using such a construction, overall product service life may be increased while minimizing pressure resistance of the total filter.
    Type: Application
    Filed: December 15, 2011
    Publication date: June 20, 2013
    Inventors: Britton G. Billingsley, David M. Blomberg, Joy L. Manske
  • Publication number: 20120125342
    Abstract: A filtering face-piece respirator 10 that comprises a mask body 12 and a harness 14. The mask body 12 includes a supporting frame structure 16 and a filtering structure 18. The frame structure is injection molded onto the filtering structure 18 such that the frame structure 16 becomes bonded to the filtering structure 18. A mask body having such a support structure allows the filtering structure to follow its configuration closely, providing improved aesthetics and collapse resistance to the resulting article.
    Type: Application
    Filed: November 19, 2010
    Publication date: May 24, 2012
    Inventors: Yonas Gebrewold, Michael K. Domroese, Dean R. Duffy, Dwayne D. Daugaard, Nhat Ha T. Nguyen, David M. Blomberg, Denise A. Barrera
  • Publication number: 20120125341
    Abstract: An filtering face-piece respirator that includes a mask body 12 and a harness 14. The mask body includes a support structure 16, filtering structure 18, and a face seal element 40. The face seal element 40 is overmolded onto at least a portion of a perimeter of the support structure of the mask body. The overmolding of the face seal member to the support structure allows the face seal to become firmly secured to the mask body at its perimeter.
    Type: Application
    Filed: November 19, 2010
    Publication date: May 24, 2012
    Inventors: Yonas Gebrewold, Michael K. Domroese, Dean R. Duffy, Dwayne D. Daugaard, Nhat Ha T. Nguyen, David M. Blomberg, Denise A. Barrera
  • Patent number: 6575165
    Abstract: The present invention relates to a fan-forced positive pressure breathing apparatus commonly known as a Powered Air Purifying Respirators (PAPR) system, and specifically concerns the connecting of the breathing components of such equipment. The invention is a method and apparatus for rapid engagement of PAPR breathing components (such as air supply lines and filter elements to a blower housing). The invention also provides for indicating and/or monitoring whether the relative components have been aligned and coupled in sealed engagement.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: June 10, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: David Cook, Raymond Odell, Ian T. Petherbridge, Pierre Legare, Robert P. Lapointe, Kenneth J. Krepel, David M. Blomberg, Derek S. Baker, James R. Betz, Thomas I. Insley
  • Patent number: D676527
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: February 19, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Thomas J. Xue, Michael K. Domroese, Philip G. Martin, David M. Blomberg, Nathan A. Abel
  • Patent number: D684536
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: June 18, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Nathan A. Abel, David M. Blomberg
  • Patent number: D696629
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: December 31, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Nathan A. Abel, David M. Blomberg
  • Patent number: D710304
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: August 5, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: David M. Blomberg, Nathan A. Abel
  • Patent number: D690414
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: September 24, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Nathan A. Abel, David M. Blomberg, Sean R. Kilmer, James E. Steffen