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Patent Searching and Data


Title:
DEVICE WITH EXTERNAL DIAPHRAGM FOR ACOUSTIC CLEANING AND AIR PURIFICATION APPLICATIONS
Document Type and Number:
WIPO Patent Application WO/2019/178797
Kind Code:
A1
Abstract:
A device with external diaphragm for acoustic cleaning and air purification is provided. The device comprises a housing with a first opening at a top for receiving one or more acoustic wave generating devices each with a diaphragm attached to a coil; and one or more external diaphragm each covering and sealing the diaphragm attached to the coil to facilitated in protecting the acoustic wave generating device as impurities or materials deposit and accumulate on the external diaphragm instead of the diaphragm of the acoustic wave generating device, and easy cleaning as only the external diaphragm needs to be cleaned, which also avoids damage to the diaphragm of the acoustic wave generating device during cleaning.

Inventors:
CHAN, Nai Kin (Rm 1901, Block32 Heng Fa Chuen, Chai Wan, Hong Kong, Kong, CN)
Application Number:
CN2018/079957
Publication Date:
September 26, 2019
Filing Date:
March 22, 2018
Export Citation:
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Assignee:
GREEN ENERGY ENGINEERING CONSULTANCY LIMITED (6/F Kong Ling Building, 102 Jervois StreetSheung Wan, Hong Kong, Kong, CN)
International Classes:
B01D46/00; H04R7/02; H04R9/06
Foreign References:
CN206136286U2017-04-26
CN207124758U2018-03-20
US20030215108A12003-11-20
JP2015082754A2015-04-27
CN106955540A2017-07-18
Attorney, Agent or Firm:
VALLEY OF SOFT BEIJING INTELLECTUAL PROPERTY AGENCY CO., LTD. (105 Meters North of the Jingguang Railway East, Changyangyicun South Changyang Town,Fangshan District, Beijing 5, 102455, CN)
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