Patents by Inventor Jeffrey L. Hamer

Jeffrey L. Hamer 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: 10398602
    Abstract: Hearing protection devices, e.g., push-to-fit earplugs, having a tip cavity in the sound attenuating body and methods of manufacturing the hearing protection devices are described herein.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: September 3, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jeffrey L. Hamer, Kenneth F. Teeters, Ravi Thomas
  • Publication number: 20180361633
    Abstract: A method of making personal protective equipment, such as a push-in earplug, is disclosed. The method includes the steps of covering a substrate with an outer layer that includes an unactivated foaming agent, positioning at least a portion of the outer layer in a mold, and activating the foaming agent such that a portion of the outer layer expands.
    Type: Application
    Filed: August 14, 2018
    Publication date: December 20, 2018
    Inventors: James P. Endle, Jeffrey L. Hamer, Alan R. Seville, Kenneth F. Teeters
  • Patent number: 10065344
    Abstract: A method of making personal protective equipment, such as a push-in earplug, is disclosed. The method includes the steps of covering a substrate with an outer layer that includes an unactivated foaming agent, positioning at least a portion of the outer layer in a mold, and activating the foaming agent such that a portion of the outer layer expands.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: September 4, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: James P. Endle, Jeffrey L. Hamer, Alan R. Seville, Kenneth F. Teeters
  • Publication number: 20170360615
    Abstract: A push-in earplug including an elongate core and outer layer is disclosed. The outer layer includes a sound attenuating portion having a first average density and a stem portion having a second average density, and the second average density is greater than the first average density.
    Type: Application
    Filed: September 1, 2017
    Publication date: December 21, 2017
    Inventors: James P. ENDLE, Jeffrey L. HAMER, Alan R. SEVILLE, Kenneth F. TEETERS
  • Patent number: 9737439
    Abstract: A push-in earplug including an elongate core and outer layer is disclosed. The outer layer includes a sound attenuating portion having a first average density and a stem portion having a second average density, and the second average density is greater than the first average density.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: August 22, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: James P. Endle, Jeffrey L. Hamer, Alan R. Seville, Kenneth F. Teeters
  • Publication number: 20170181893
    Abstract: A push-in earplug including an elongate core and outer layer is disclosed. The outer layer includes a sound attenuating portion having a first average density and a stem portion having a second average density, and the second average density is greater than the first average density.
    Type: Application
    Filed: March 13, 2017
    Publication date: June 29, 2017
    Inventors: James P. ENDLE, Jeffrey L. HAMER, Alan R. SEVILLE, Kenneth F. TEETERS
  • Publication number: 20170156933
    Abstract: Hearing protection devices, e.g., push-to-fit earplugs, having a tip cavity in the sound attenuating body and methods of manufacturing the hearing protection devices are described herein.
    Type: Application
    Filed: January 23, 2017
    Publication date: June 8, 2017
    Inventors: Jeffrey L. HAMER, Kenneth F. TEETERS, Ravi THOMAS
  • Patent number: 9549855
    Abstract: Hearing protection devices, e.g., push-to-fit earplugs, having a tip cavity in the sound attenuating body and methods of manufacturing the hearing protection devices are described herein.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: January 24, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jeffrey L. Hamer, Kenneth F. Teeters, Ravi Thomas
  • Publication number: 20160324692
    Abstract: A push-to-fit type earplug (100) including a sound attenuating portion (113) and a semi-rigid stem portion (114) having a relatively greater stiffness than the sound attenuating portion is disclosed. The sound attenuating portion and stem portion are made of a closed-cell, slow-recovery foam.
    Type: Application
    Filed: January 6, 2015
    Publication date: November 10, 2016
    Inventors: Kenneth F. Teeters, Jeffrey L. Hamer
  • Publication number: 20150335490
    Abstract: The present description provides an earplug. One exemplary earplug described herein includes a stem and a sound attenuating body attached to the stem. The sound attenuating body includes a leading end, a base end, a tip region positioned rearward of the leading end, and a longitudinal axis extending between the leading end and the base end. An array of cavities is positioned within the tip region and spaced around the longitudinal axis and provides a collapsible volume.
    Type: Application
    Filed: May 20, 2014
    Publication date: November 26, 2015
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jeffrey L. Hamer, Kenneth F. Teeters, Ravi Thomas
  • Publication number: 20150335489
    Abstract: The present description provides an earplug. One exemplary earplug described herein includes a stem and a sound attenuating body attached to the stem. The sound attenuating body includes a leading end, a base end, a longitudinal axis extending between the leading end and the base end, and a flange extending at least partially over the stem and having an exterior flange surface and an interior flange surface having a plurality of one or both of protrusions or recesses. The earplug further includes a flange cavity including a continuous volume around a perimeter of the stem between the interior flange surface and the stem. A distance between the interior and exterior flange surfaces varies around a perimeter of the flange at a plane intersecting the flange transverse to the longitudinal axis.
    Type: Application
    Filed: May 20, 2014
    Publication date: November 26, 2015
    Applicant: 3M Innovative Properties Company
    Inventors: Jeffrey L. Hamer, Kenneth F. Teeters, Ravi Thomas
  • Publication number: 20150137406
    Abstract: A method of making personal protective equipment, such as a push-in earplug, is disclosed. The method includes the steps of covering a substrate with an outer layer that includes an unactivated foaming agent, positioning at least a portion of the outer layer in a mold, and activating the foaming agent such that a portion of the outer layer expands.
    Type: Application
    Filed: January 21, 2015
    Publication date: May 21, 2015
    Inventors: James P. Endle, Jeffrey L. Hamer, Alan R. Seville, Kenneth F. Teeters
  • Patent number: 8968613
    Abstract: A method of making personal protective equipment, such as a push-in earplug, is disclosed. The method includes the steps of covering a substrate with an outer layer that includes an unactivated foaming agent, positioning at least a portion of the outer layer in a mold, and activating the foaming agent such that a portion of the outer layer expands.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: March 3, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: James P. Endle, Jeffrey L. Hamer, Alan R. Seville, Kenneth F. Teeters
  • Publication number: 20140230830
    Abstract: Hearing protection devices, e.g., push-to-fit earplugs, having a tip cavity in the sound attenuating body and methods of manufacturing the hearing protection devices are described herein.
    Type: Application
    Filed: February 15, 2013
    Publication date: August 21, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jeffrey L. Hamer, Kenneth F. Teeters, Ravi Thomas
  • Patent number: 8679607
    Abstract: A foamable article is disclosed. The article includes a substrate and an outer layer covering at least a portion of the substrate and including an unactivated expandable sphere foaming agent and an unactivated chemical foaming agent. The unactivated foaming agents may be activated to increase the volume of the outer layer.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: March 25, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Jeffrey L. Hamer, Alan R. Seville, Kenneth F. Teeters
  • Patent number: D717937
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: November 18, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Jeffrey L. Hamer, Kenneth F. Teeters, Ravi Thomas
  • Patent number: D757925
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: May 31, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Jeffrey L. Hamer, Kenneth F. Teeters, Ravi Thomas
  • Patent number: D759802
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: June 21, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Jeffrey L. Hamer, Kenneth F. Teeters, Ravi Thomas
  • Patent number: D798434
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: September 26, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jeffrey L. Hamer, Kenneth F. Teeters, Ravi Thomas
  • Patent number: D798435
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: September 26, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jeffrey L. Hamer, Kenneth F. Teeters, Ravi Thomas