Patents by Inventor Sigvard Nilsson

Sigvard Nilsson 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: 10959477
    Abstract: The present description provides an ear muff attachment assembly. An exemplary ear muff attachment assembly (100) includes a housing (110), an ear muff (130), an arm (120) having first and second end regions, the first end region positioned within the housing and the second end region attached to the ear muff, and a spring (150) engaged to the housing and the first end region of the arm. The arm is rotatable about a first axis of rotation between a first position and an intermediate position, and about a second axis of rotation between the intermediate position and a second position.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: March 30, 2021
    Assignee: 3M Innovative Properties Company
    Inventors: Henrik Nordin, Sigvard Nilsson, Emil J. Jönsson
  • Publication number: 20170049179
    Abstract: The present description provides an ear muff attachment assembly. An exemplary ear muff attachment assembly (100) includes a housing (110), an ear muff (130), an arm (120) having first and second end regions, the first end region positioned within the housing and the second end region attached to the ear muff, and a spring (150) engaged to the housing and the first end region of the arm. The arm is rotatable about a first axis of rotation between a first position and an intermediate position, and about a second axis of rotation between the intermediate position and a second position.
    Type: Application
    Filed: April 23, 2015
    Publication date: February 23, 2017
    Inventors: Henrik NORDIN, Sigvard NILSSON, Emil J. JÖNSSON
  • Patent number: 8302731
    Abstract: The present invention provides a hearing protector comprising two ear cups which are designed to cover the ears of the wearer of the hearing protector, and sealing rings (2) which are secured along the peripheries of the ear cups, the sealing rings each displaying at least one circumferential lamella (5, 6, 7), being manufactured from a resilient, possibly elastic material, and being formed to sealingly abut, around the wearer's ears, against the wearer's head, wherein the lamella (5,6, 7), at least along its edge regions located most proximal the wearer's head, display portions (13, 14, 15) which, in a direction towards the wearer, are arched from a central region (3) in the sealing ring (2) out towards its periphery (1).
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: November 6, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Sigvard Nilsson, Henrik Nordin
  • Patent number: 8243943
    Abstract: A hearing protector comprises a hearing hood (2), a microphone (7), a loudspeaker and an amplifier. The hearing hood (2) has passive noise damping. The microphone (7) is disposed exteriorly on the hearing protector, while the loudspeaker is disposed inside the hood. The amplifier amplifies and transmits the signals from the microphone (7) to the loudspeaker. The noise damping of the hearing hood (2) is broad band. The frequency range of the amplifier corresponds to the frequency range of human speech. The amplification of the amplifier is variable and the greatest amplification is such that the sum total of the sound levels that are caused, on the one hand, by ambient sound passing through the hood (2) and, on the other hand, by sound from the loudspeaker amounts to a maximum, predetermined value.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: August 14, 2012
    Assignee: 3M Svenska Aktiebolag
    Inventors: Henrik Nordin, Sigvard Nilsson
  • Publication number: 20120012418
    Abstract: The present invention provides a hearing protector comprising two ear cups which are designed to cover the ears of the wearer of the hearing protector, and sealing rings (2) which are secured along the peripheries of the ear cups, the sealing rings each displaying at least one circumferential lamella (5, 6, 7), being manufactured from a resilient, possibly elastic material, and being formed to sealingly abut, around the wearer's ears, against the wearer's head, wherein the lamella (5,6, 7), at least along its edge regions located most proximal the wearer's head, display portions (13, 14, 15) which, in a direction towards the wearer, are arched from a central region (3) in the sealing ring (2) out towards its periphery (1).
    Type: Application
    Filed: March 5, 2010
    Publication date: January 19, 2012
    Inventors: Sigvard Nilsson, Henrik Nordin
  • Publication number: 20070274529
    Abstract: A hearing protector comprises a hearing hood (2), a microphone (7), a loudspeaker and an amplifier. The hearing hood (2) has passive noise damping. The microphone (7) is disposed exteriorly on the hearing protector, while the loudspeaker is disposed inside the hood. The amplifier amplifies and transmits the signals from the microphone (7) to the loudspeaker. The noise damping of the hearing hood (2) is broad band. The frequency range of the amplifier corresponds to the frequency range of human speech. The amplification of the amplifier is variable and the greatest amplification is such that the sum total of the sound levels that are caused, on the one hand, by ambient sound passing through the hood (2) and, on the other hand, by sound from the loudspeaker amounts to a maximum, predetermined value.
    Type: Application
    Filed: November 23, 2004
    Publication date: November 29, 2007
    Inventors: Henrik Nordin, Sigvard Nilsson
  • Publication number: 20050238181
    Abstract: A hearing protector device is provided including a sound attenuating body and an electronic unit having a microphone, an amplifier, and a loudspeaker, where the electronic unit is selectively activated and, when activated, receives sound from an ambient environment, amplifies a frequency range of the received sound corresponding to a frequency range of human speech, and varies said amplification such that a total level of sound passing through the body and through the electronic unit does not exceed a maximum predetermined sound level.
    Type: Application
    Filed: November 29, 2004
    Publication date: October 27, 2005
    Inventors: Sigvard Nilsson, Henrik Nordin
  • Patent number: 5384857
    Abstract: A snap-in attachment of a headband or other support means for a hearing-protection cup is described. The snap-in contact comprises a sliding pin (6) the journal section (7) of which is oval or elliptical in cross section, and a jaw element with two resiliently deformable jaws (11, 12). The inner walls (21, 22) of the jaws (11, 12) and the wall section (20) connecting them define a locking space (13). The journal section (7) of the sliding pin can be inserted into the locking space (13) against a resilient counter member only in the direction of the longitudinal axis of the journal section (7) and is thus lockable between the jaws (11, 12) in a first locked position. After being turned (angle .alpha.) against another resilient counter member, the sliding pin is locked by its journal section (7) in the locking space (13) in a second locked position, in which it is pivotable to a limited extent (sector with angle .beta.).
    Type: Grant
    Filed: October 26, 1993
    Date of Patent: January 24, 1995
    Assignee: Peltor Aktienbolag
    Inventors: Henrik Nordin, Sigvard Nilsson
  • Patent number: D465616
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: November 12, 2002
    Assignee: Peltor AB
    Inventor: Sigvard Nilsson
  • Patent number: D468063
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: December 31, 2002
    Assignee: Peltor AB
    Inventor: Sigvard Nilsson
  • Patent number: D370308
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: May 28, 1996
    Assignee: Peltor AB
    Inventor: Sigvard Nilsson