The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 2016
Filed:
Mar. 10, 2015
Hoover Limited, Merthyr Tydfil, GB;
Hoover Limited, , GB;
Abstract
A cyclonic separation device comprises a cyclone chamberhaving a cyclone axis A, a fluid outlet at one end of the cyclone chamber and a tubular apertured shroudextending concentrically with the cyclone axis A. In use a motorrotates the shroudin the direction of a rotational airflow in the chamberat a rotational speed which is over 1500 rpm and/or over 70% of the airflow speed around the shroud. The high speed of rotation of the shroudis sufficient to dislodge any dust on the shroud by centrifugal action. Also, the high rotational speed of shroudmeans that the air does not to need to decelerate to pass through the shroudapertures and hence the risk of pressure drop and a loss of suction is avoided.