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:
Oct. 25, 2022
Filed:
Jul. 05, 2018
Cambridge Filter Corporation, Tokyo, JP;
Cambridge Filter Corporation, Tokyo, JP;
Abstract
A device that can accurately detect clogging of a filter and that has a simple structure is provided. A device for measuring clogging of a filter in an air conditioner () having a blower () that blows gas (), () through a duct () and a filter () that is provided in the duct () and filters dust floating in the gas, comprises a device () for measuring a sound pressure that is provided in the duct (), a data processor () that extracts data on the sound pressure at a specific frequency from the data on the sound pressure that have been measured by means of the device () for measuring a sound pressure, and an estimating device () that estimates clogging of the filter based on the data on the sound pressure at the specific frequency that have been extracted by means of the data processor ().