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:
Mar. 10, 2026
Filed:
May. 18, 2023
Reckitt & Colman (Overseas) Hygiene Home Limited, Slough, GB;
Lavis Du, Shenzhen, CN;
Chaoqin Guo, Guangdong, CN;
Dan Ibbitson, Hull, GB;
Akira Naidu, Liverpool, GB;
Jake Stephen Williams, Hull, GB;
Charles Yao, Shenzhen, CN;
Reckitt & Colman (Overseas) Hygiene Home Limited, Slough, GB;
Abstract
A fan () for an automatic dispensing device, wherein the fan () is configured to generate an air flow when a rotor () of the fan () is rotating. The fan () comprises a drive circuit (), an electromagnet () having at least one electromagnetic coil, the electromagnetic coil connected to the drive circuit (), a rotor () for generating the airflow, and at least four magnets () arranged on a circle () on the rotor () and spaced apart by the same angle (alpha), wherein the electromagnet () is arranged above or under the circle () of the rotor () and configured to attract or repel said magnets (), and the drive circuit () is configured to switch a current direction in the electromagnetic coil of the electromagnet () to sequentially attract and then repel each magnet as the rotor rotates. The fan further comprises a magnetic element () arranged above or under the rotor () in proximity () of the circle () of the rotor () such that the magnetic element () attracts one of the magnets () to its position when the electromagnetic coil is not powered by the drive circuit () and the rotor () is not rotating or gradually coming to a halt after the electromagnetic coil has been un-powered, wherein none of the other magnets () assumes a position directly under or above the electromagnet () when the rotor () comes to a halt. In a preferred embodiment, the fan () further includes a 'floating suspension' to reduce wear and tear over time.