Patents by Inventor David Scott Groothuis

David Scott Groothuis 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: 7352455
    Abstract: An improved laser scanning apparatus (46) for determining frame or unibody alignment or misalignment of a vehicle (40) is provided, which includes a laser assembly (54), a pair of rotatable mirror assemblies (56,58) and laser detectors (114,116) located within an enclosed housing (50,52). The laser assembly (54) has an upper pair of lasers (122,126) located in known, spaced relationship above a lower pair of lasers (124,128); detector assemblies (114, 116) are also provided including substantially parabolic reflective surfaces (118a, 120a) with detectors (114a, 116a) disposed substantially at the focal point of the surfaces (118a, 120a). The apparatus (46) is used in conjunction with a plurality of individually coded reflective targets (44) which are suspended from known reference points on the vehicle (40).
    Type: Grant
    Filed: April 22, 2004
    Date of Patent: April 1, 2008
    Assignee: Chief Automotive Technologies, Inc.
    Inventors: David Scott Groothuis, Michael Thomas Hanchett
  • Patent number: 7075635
    Abstract: An improved laser scanning apparatus (46) for determining frame or unibody alignment or misalignment of a vehicle (40) is provided, which includes a laser assembly (54), a pair of rotatable mirror assemblies (56,58) and laser detectors (114, 116) located within an enclosed housing (50,52). The laser assembly (54) has an upper pair of lasers (122,126) located in known, spaced relationship above a lower pair of lasers (124,128). with the detectors (114, 116) disposed between the upper and lower laser pairs (122, 126, 124, 128). The apparatus (46) is used in conjunction with a plurality of individually coded reflective targets (44) which are suspended from known reference points on the vehicle (40).
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: July 11, 2006
    Assignee: Delaware Capital Formation, Inc.
    Inventors: David Scott Groothuis, Michael Thomas Hanchett
  • Patent number: 6829046
    Abstract: An improved laser scanning apparatus (46) for determining frame or unibody alignment or misalignment of a vehicle (40) is provided, which includes a laser assembly (54), a pair of rotatable mirror assemblies (56,58) and laser detectors (114,116) located within an enclosed housing (50,52). The laser assembly (54) has an upper pair of lasers (122,126) located in known, spaced relationship above a lower pair of lasers (124,128), with the detectors (114, 116) disposed between the upper and lower laser pairs (122, 126, 124, 128). The apparatus (46) is used in conjunction with a plurality of individually coded reflective targets (44) which are suspended from known reference points on the vehicle (40).
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: December 7, 2004
    Assignee: Delaware Capital Formation, Inc.
    Inventors: David Scott Groothuis, Michael Thomas Hanchett
  • Patent number: 6765664
    Abstract: An improved laser scanning apparatus (46) for determining frame or unibody alignment or misalignment of a vehicle (40) is provided, which includes a laser assembly (54), a pair of rotatable mirror assemblies (56,58) and laser detectors (114,116) located within an enclosed housing (50,52). The laser assembly (54) has an upper pair of lasers (122,126) located in known, spaced relationship above a lower pair of lasers (124,128); detector assemblies (114, 116) are also provided including substantially parabolic reflective surfaces (118a, 120a) with detectors (114a, 116a) disposed substantially at the focal point of the surfaces (118a, 120a). The apparatus (46) is used in conjunction with a plurality of individually coded reflective targets (44) which are suspended from known reference points on the vehicle (40).
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: July 20, 2004
    Assignee: Delaware Capital Formation, Inc.
    Inventors: David Scott Groothuis, Michael Thomas Hanchett
  • Publication number: 20030133128
    Abstract: An improved laser scanning apparatus (46) for determining frame or unibody alignment or misalignment of a vehicle (40) is provided, which includes a laser assembly (54), a pair of rotatable mirror assemblies (56,58) and laser detectors (114,116) located within an enclosed housing (50,52). The laser assembly (54) has an upper pair of lasers (122,126) located in known, spaced relationship above a lower pair of lasers (124,128); detector assemblies (114, 116) are also provided including substantially parabolic reflective surfaces (118a, 120a) with detectors (114a, 116a) disposed substantially at the focal point of the surfaces (118a, 120a). The apparatus (46) is used in conjunction with a plurality of individually coded reflective targets (44) which are suspended from known reference points on the vehicle (40).
    Type: Application
    Filed: January 9, 2002
    Publication date: July 17, 2003
    Applicant: Delaware Capital Formation, Inc.
    Inventors: David Scott Groothuis, Michael Thomas Hanchett
  • Patent number: D457161
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: May 14, 2002
    Assignee: Chief Automotive Systems
    Inventors: David Scott Groothuis, Michael Thomas Hanchett