LIQUID DROPLET SPRAY DEVICE

European Patent Office Patent

APP PUB NO EP-2637802-A1
SERIAL NO

11776214

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Abstract

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A liquid droplet spray device for ejecting a liquid as a spray of droplets has a cartridge (15) with a nozzle arrangement (13) to eject droplets, which is vibrated by a piezo element (23a) through the agency of an actuating element (23). A resonance chamber is disposed between an inner wall (15a) of the cartridge and the actuating element (23) such that the cartridge inner wall (15a) is separated by a gap having a length B from the actuating element (23), the cartridge inner wall (15a) being cap-shaped and extending along the side surfaces of the actuating element (23) and being frictionally attached to the side surfaces along a distance A. The resonance chamber (10) improves the efficiency of transmission of vibrations to the cartridge.

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Patent Owner(s)

Patent OwnerAddress
BRITISH AMERICAN TOBACCO COGBGLOBE HOUSE 1 WATER STREET LONDON WC2R 3LA

International Classification(s)

Inventor(s)

Inventor Name Address
FERIANI AMIR STATIONSSTRASSE 12 3097 LIEBEFELD-BERNE 3097
TACHE CHRISTIAN STATIONSSTRASSE 12 3097 LIEBEFELD-BERNE 3097
SANDOZ JEAN-PAUL 2036 CORMONDRÈCHE
ZAUGG CEDRIC 2000 NEUCHÂTEL

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