Global Patent Index - EP 3321505 B1

EP 3321505 B1 20210407 - MINIATURE PNEUMATIC DEVICE

Title (en)

MINIATURE PNEUMATIC DEVICE

Title (de)

PNEUMATISCHE MINIATURVORRICHTUNG

Title (fr)

DISPOSITIF PNEUMATIQUE MINIATURE

Publication

EP 3321505 B1 20210407 (EN)

Application

EP 17200850 A 20171109

Priority

TW 105136553 A 20161110

Abstract (en)

[origin: EP3321505A1] A miniature pneumatic device (1) includes a miniature fluid control device (1A) and a miniature valve device (1B). The miniature fluid control device (1A) includes a gas inlet plate (11), a resonance plate (12), a piezoelectric actuator (13) and a gas collecting plate (16). A first chamber (121) is formed between the resonance plate (12) and the piezoelectric actuator (13). After a gas is fed into the gas inlet plate (11), the gas is transferred to the first chamber (121) through the resonance plate (12) and then transferred. Consequently, a pressure gradient is generated to continuously push the gas. The miniature valve device (1B) includes a valve film (17) and a gas outlet plate (18). After the gas is transferred from the miniature fluid control device (1A) to the miniature valve device (IB), the valve opening (170) of the valve film (17) is correspondingly opened or closed and the gas is transferred in one direction. Consequently, a pressure-collecting operation or a pressure-releasing operation is selectively performed.

IPC 8 full level

F04B 43/04 (2006.01); F04B 45/047 (2006.01); F04B 53/10 (2006.01)

CPC (source: EP US)

F04B 45/047 (2013.01 - EP US); F04B 53/10 (2013.01 - EP)

Citation (examination)

None

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 3321505 A1 20180516; EP 3321505 B1 20210407; JP 2018076865 A 20180517; JP 6829676 B2 20210210; TW 201817968 A 20180516; TW I676737 B 20191111

DOCDB simple family (application)

EP 17200850 A 20171109; JP 2017216110 A 20171109; TW 105136553 A 20161110