Patents Assigned to National Fuel Gas Distribution Corp.
  • Natural gas shut off system
    Patent number: 5918618
    Abstract: A system for turning off the flow of natural gas into a structure is used where the control is used on the exterior of the structure. The control is operated pneumatically and is connected by an air flow conduit to a valve that is located on a natural gas feed line in the interior of a structure.
    Type: Grant
    Filed: July 2, 1996
    Date of Patent: July 6, 1999
    Assignee: National Fuel Gas Distribution Corp.
    Inventor: Mark A. Neupert