Resources Contact Us Home
Fuel tank for an aircraft

Image Number 3 for United States Patent #7802753.

Unsafe electric energies can exist in aircraft fuel tanks as a result of static build-up or induced currents from lightning strikes. The invention provides an aircraft having a ground circuit 19 and including a fuel tank having a fuel probe circuit having its own ground circuit. Multiple discharge paths allow the safe discharge of electricity from the tank before it reaches levels where an arc, spark or other electric discharge, able to ignite fuel in the tank, could occur. The discharge paths all pass via a conductive foam having a relatively high impedance that allow static bleed, but does not significantly increase the risk of currents induced by lightning reaching levels at which an ignition-causing electrical discharge might occur. The foam is securely bonded to both the aircraft ground circuit and the fuel probe ground, the bonds having a large area of surface-to-surface contact.

  Recently Added Patents
Mobile advertising and compensation-verification system
Electronic device
Semiconductor apparatus
Process and intermediates for preparing lapatinib
Computer system for routing package deliveries
Buckle (tube)
  Randomly Featured Patents
Thermostable Y-family polymerases and chimeras
Methods and apparatus for incorporating nitrogen in oxide films
Thoracic impedance detection with blood resistivity compensation
Personalized prognosis modeling in medical treatment planning
Ultra-soft, ultra-elastic airfoils
Permanent waving with silicones
Process for producing water-soluble polymers
Bar code reader having a polygon mirror providing different scan line lengths
Process for producing unburned basic refractories