Article: British Inventors Develop Vacuum Cleaner Cyclonic Separation Device

ALEXANDRIA, Va., April 28 -- Adrian Christopher Arnold of Brentor, Great Britain, and Arthur John Arnold of Okehampton, Great Britain, have developed a vacuum cleaner cyclonic separation device.

According to the U.S. Patent & Trademark Office, the invention relates to a "cyclonic separation device for a vacuum cleaner including a cylindrical housing, an inlet tube parallel to the axis of the housing having a vortex vane disposed axially in the inlet tube. Air rotates in one direction in the inlet tube, and preferably in the opposite direction in the housing. The housing includes a cylindrical sidewall with an upper central outlet tube and a closed bottom for collecting separated dirt. A ...

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