Any ideas about this Prospective Development?
The aviation industry has another challenge in fire
protection. This challenge deals with replacement of
Halon 1301 from the existing airplanes and designing
non-halon systems for_ future airplanes like the A380
and the 7E7. Production of Halons has ceased woldwide and it
is recognized as a hazardous material in several
industrial nations. In the US_ a tax is levied on halon inventory.
My Patent that has been published by US Patent Office. It is in Public domain and can be accessed by going to
http//:
www.uspto.gov
search for Application 20040020665
My Patent application deals with the use of Helium for
fire protection.
Helium is an inert gas like nitrogen or carbon dioxide.
Its molecular weight is 4 compared to 28 for nitrogen
and 44 for carbon dioxide._ Thus to reduce the oxygen
content of a compartment one requires Helium 1/7th the
weight of Nitrogen or 1/11th the weight of carbon
dioxide._ This makes Helium competitive with Halon 1301
on weight basis._ My estimates indicate one would
require lesser amount of Helium for fire suppression in a compartment than Halon 1301._
On a system basis there may or may not be a weight advantage as helium cylinders may be heavier.
In addition, Helium is a clean agent (leaves no residue),
safe for humans and animals, easily available world
wide at a reasonable cost, and non-conducting. All
these properties are highly desireable for a fire
suppression agent for use in aviation.
If the above interests you then I suggest you download
the Application from the uspto web page.
The Abstract is as follows.
United States Patent Application_ _____ 20040020665
Kind Code _____ A1
Date:_ February 5, 2004
Helium gas total flood fire suppression system
Abstract
The invention provides systems and methods adaptable to all gaseous agents including Helium to suppress fire in at least one enclosed space. Suppressants are delivered by a dedicated subsystem connected to cargo compartments or to engine nacelles, or by an integrated system connected to cargo compartments and engine nacelles. For example, at least a first reservoir stores fire suppressant composition for knocking down a fire in an enclosed space. Piping delivers the composition from the at least first reservoir to the enclosed space. A pressure sensor senses pressure of the composition in the piping, and a controllable purging device permits air to exit the enclosed space
responsive to sensed pressure in the piping of the composition.