Back to results
US 5,296,113 AGranted
Irradiation device for fluoropolymers
OwnerRobert S. Luniewskiinventor
Life of this patent
Estimating the term…
Abstract
An apparatus and method for irradiating PTFE particles to cause them to disintegrate into a powder includes a chamber into which the particles are fed continuously. The particles are simultaneously agitated using only air, irradiated with a beam of electrons and pulverized. The powder produced thereby is extracted using an air classifier.
Claims12
An apparatus for degrading particulate matter made of complex molecules, said apparatus comprising:
- a closed chamber having an aperture;
- particle injection means for injecting particle into said chamber;
- air injection means for injecting air in said chamber, said air injection means being constructed and arranged for creating a fluidized bed of said particles, so that said particles are ground against each other;
- an electron source directing an electron beam through said aperture intersecting said path;
- wherein said particles are degraded into a powder by the simultaneous action of said electron beam and the grinding wherein said particles are degraded into a powder;
- and
- collector means coupled to said chamber for collecting said powder.
4 more elements
An apparatus for irradiating fluoropolymers comprising:
- a chamber having a length and an aperture substantially coextensive with said length;
- a supply pipe disposed in said chamber and substantially coextensive with said aperture and arranged to supply particles of fluoropolymers into said chamber;
- air agitation means consisting of an air supply arranged to grind said particles in a fluidized bed in said chamber;
- a source of electrons arranged to direct a beam of electrons through said aperture to bombard said particles wherein under the influence of said agitation and said electron bombardment said particles disintegrate into a powder;
- and
- powder collection means for continuously collecting said powder from said chamber.
3 more elements
A method of irradiating fluoropolymer particles comprising the steps of:
- supplying continuously fluoropolymer particles into a chamber;
- agitating said particles using air from an air supply causing said particles to grind against each other;
- irradiating the agitated particles with a beam of electrons causing said particles to disintegrate into a powder;
- and
- collecting said powder continuously form said chamber.
2 more elements
Dependencies are inferred from the claim text.