Patents by Inventor Lars-Gunnar L. Andersson

Lars-Gunnar L. Andersson 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).

  • Earplug device
    Patent number: 4671265
    Abstract: An earplug device includes a headband with earplugs attached to the ends thereof. The earplugs have a head portion and a shank portion, the latter with its rear end joined to the associated headband end. The shank portion has a stiffened middle section and is articulately connected on either side thereof respectively to the head portion and headband end to form a doubly articulated shank configuration. The head portion is thus given the opportunity of coacting in the best possible way with the auditory canal of an ear, and to a substantial degree independently of the attitude of the headband.
    Type: Grant
    Filed: November 26, 1985
    Date of Patent: June 9, 1987
    Assignee: Bilsom AB
    Inventor: Lars-Gunnar L. Andersson
  • Headband earplugs
    Patent number: D292530
    Type: Grant
    Filed: May 22, 1985
    Date of Patent: October 27, 1987
    Inventor: Lars-Gunnar L. Andersson