Patents by Inventor Douglas Lee Campbell

Douglas Lee Campbell 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).

  • Personal protection system with head unit having easy access controls and protective covering having glare avoiding face shield
    Patent number: 8234722
    Abstract: A personal protection system is provided for creating a sterile barrier between a user and an external environment. The personal protection system includes a head unit having a ventilation unit with a fan for distributing air to the user. The personal protection system also provides a protective covering draped over the head unit. The protective covering includes a flaccid shroud and a transparent face shield mounted to the flaccid shroud. The face shield is mounted to the head unit using a plurality of mounting elements. The face shield is mounted such that a top portion of the face shield has a larger radius of curvature when mounted that a bottom portion of the face shield. This reduces the glare directed toward the user. A control panel for the ventilation unit is also provided on a chin bar of the head unit for easy access by the user.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: August 7, 2012
    Assignee: Stryker Corporation
    Inventors: Brian James VanDerWoude, Douglas Lee Campbell
  • PERSONAL PROTECTION SYSTEM WITH HEAD UNIT HAVING EASY ACCESS CONTROLS AND PROTECTIVE COVERING HAVING GLARE AVOIDING FACE SHIELD
    Publication number: 20090151054
    Abstract: A personal protection system is provided for creating a sterile barrier between a user and an external environment. The personal protection system includes a head unit having a ventilation unit with a fan for distributing air to the user. The personal protection system also provides a protective covering draped over the head unit. The protective covering includes a flaccid shroud and a transparent face shield mounted to the flaccid shroud. The face shield is mounted to the head unit using a plurality of mounting elements. The face shield is mounted such that a top portion of the face shield has a larger radius of curvature when mounted that a bottom portion of the face shield. This reduces the glare directed toward the user. A control panel for the ventilation unit is also provided on a chin bar of the head unit for easy access by the user.
    Type: Application
    Filed: December 14, 2007
    Publication date: June 18, 2009
    Applicant: STRYKER CORPORATION
    Inventors: Brian James VanDerWoude, Douglas Lee Campbell