Patent ID: 8753578

Claim:
Apparatus for the large scale production of boron nitride nanotubes from a continuously fed boron containing target rod comprising: a pressure chamber; a supply of nitrogen gas into said pressure chamber; and a chamber exhaust; said pressure chamber including the continuously fed boron containing target rod; a rotating cooled condenser ring; a laser producing a laser beam; a lens for focusing said laser beam on said continuously fed boron containing target rod, said boron containing target rod is introduced into said laser beam at a position away from the focal waist of the laser beam and where said laser beam is about the same size as said boron containing target rod, said boron containing target rod being introduced into said laser beam at a position below said rotating cooled condenser ring; a collection tube for removing boron nitride nanotubes from said rotating condenser ring, said collection tube extending to the outside of said pressure chamber; and a cooled block that terminates said laser beam by absorbing the full continuous power of said laser beam.