Patents by Inventor Edwin Lewis Hull

Edwin Lewis Hull 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).

  • Emergency lighting unit/exit sign combination
    Patent number: 6848798
    Abstract: An emergency lighting fixture combining the functions of an illuminated sign such as an exit sign and an emergency lighting unit integrated into one housing onto which one or more emergency lights can be mounted at predetermined locations of the housing, the combined emergency lighting structure providing both exit location information and ambient emergency lighting in a single cooperatively operating device.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: February 1, 2005
    Assignee: Acuity Brands, Inc.
    Inventors: Mark Campbell Logan, Andrew Edward Masters, Edwin Lewis Hull
  • Emergency lighting unit/exit sign combination
    Patent number: 6499866
    Abstract: An emergency lighting fixture combining the functions of an illuminated sign such as an exit sign and an emergency lighting unit integrated into one housing onto which one or more emergency lights can be mounted at predetermined locations of the housing, the combined emergency lighting structure providing both exit location information and ambient emergency lighting in a single cooperatively operating device. The present device replaces bulky prior combinations of discrete exit signs and emergency lighting units which have been assembled together essentially as individual devices without integration into a single housing or without substantial integration of operational features, the housing of the present device being only slightly larger than standard exit signage.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: December 31, 2002
    Assignee: Acuity Brands, Inc.
    Inventors: Mark Campbell Logan, Andrew Edward Masters, Edwin Lewis Hull
  • Emergency lighting unit/exit sign combination
    Patent number: 6142648
    Abstract: An emergency lighting fixture combining the functions of an illuminated sign such as an exit sign and an emergency lighting unit integrated into one housing onto which one or more emergency lights can be mounted at predetermined locations of the housing, the combined emergency lighting structure providing both exit location information and ambient emergency lighting in a single cooperatively operating device. The present device replaces bulky prior combinations of discrete exit signs and emergency lighting units which have been assembled together essentially as individual devices without integration into a single housing or without substantial integration of operational features, the housing of the present device being only slightly larger than standard exit signage.
    Type: Grant
    Filed: August 12, 1998
    Date of Patent: November 7, 2000
    Assignee: NSI Enterprises, Inc.
    Inventors: Mark Campbell Logan, Andrew Edward Masters, Edwin Lewis Hull
  • Emergency lighting unit/exit sign combination
    Patent number: 5797673
    Abstract: An emergency lighting fixture combining the functions of an illuminated sign such as an exit sign and an emergency lighting unit integrated into one housing onto which one or more emergency light can be mounted at predetermined locations of the housing, the combined emergency lighting structure providing both exit location information and ambient emergency lighting in a single cooperatively operating device. The present device replaces bulky prior combinations of discrete exit signs and emergency lighting units which have been assembled together essentially as individual devices without integration into a single housing or without substantial integration of operational features, the housing of the present device being only slightly larger than standard exit signage.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: August 25, 1998
    Assignee: NSI Enterprises, Inc.
    Inventors: Mark Campbell Logan, Andrew Edward Masters, Edwin Lewis Hull