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:
Sep. 01, 2026
Filed:
Apr. 19, 2022
Dyson Technology Limited, Wiltshire, GB;
Ignacio Justo Perez Pablos, Malmesbury, GB;
Christopher Ashley Monk, Royal Wootton Bassett, GB;
Dyson Technology Limited, Malmesbury, GB;
Abstract
A method of reducing noise in a device configured to generate an air flow. The device includes an air flow duct arranged to convey a flow of air, a gas-filled cavity disposed beside the air flow duct, and a wall separating the air flow duct and the cavity. The wall includes at least one aperture. The method includes optimising an acoustic property for an acoustic resistive screen that is to be held in tension over the aperture, by: determining geometric properties of the cavity, the aperture and the air flow duct; determining, based on the geometric properties, a noise reduction for the device for each of a series of values for the acoustic property of the screen; and comparing the respective noise reductions for the series of values to determine an optimised value of the series.