EP 0423572 B1 19940727 - Apparatus for production of a pressure wave.
Title (en)
Apparatus for production of a pressure wave.
Title (de)
Gerät zur Erzeugung einer Druckwelle.
Title (fr)
Dispositif pour la production d'une onde de pression.
Publication
Application
Priority
DE 3934988 A 19891020
Abstract (en)
[origin: EP0423572A1] The invention relates to an apparatus for the intermittent production of a pressure wave in hoppers or other containers. For release of a pressure wave, a valve which, according to the invention, consists of a simple valve disc (10) between a storage housing (1) and an outlet pipe is opened suddenly. The opening of this passage by raising the valve disc (10) from the pipe (5) takes place in the usual manner by venting a pressure chamber (7) adjoining the valve disc (10). <IMAGE>
IPC 1-7
IPC 8 full level
B65D 88/00 (2006.01); B65D 88/70 (2006.01)
CPC (source: EP)
B65D 88/706 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0423572 A1 19910424; EP 0423572 B1 19940727; AT E109102 T1 19940815; AU 625447 B2 19920709; AU 6399990 A 19910426; CN 1024776 C 19940601; CN 1051022 A 19910501; DE 3934988 A1 19910425; DE 59006577 D1 19940901; JP H03148487 A 19910625; NO 904516 D0 19901018; NO 904516 L 19910422; ZA 908383 B 19910828
DOCDB simple family (application)
EP 90119210 A 19901006; AT 90119210 T 19901006; AU 6399990 A 19901011; CN 90108644 A 19901020; DE 3934988 A 19891020; DE 59006577 T 19901006; JP 28170090 A 19901019; NO 904516 A 19901018; ZA 908383 A 19901019