EP 0825303 B1 20001129 - Operating means for a discharge- and/or flushing valve actuated by vacuum
Title (en)
Operating means for a discharge- and/or flushing valve actuated by vacuum
Title (de)
Steuerung für ein mit Unterdruck betätigbares Absaug- und/oder Wasserventil
Title (fr)
Moyens de commande d'une vanne de décharge et/ou de chasse d'eau à dépression
Publication
Application
Priority
DE 19633178 A 19960817
Abstract (en)
[origin: US6360768B1] A control apparatus for pneumatic evacuation and/or water valves, operated by vacuum pressure and used for a vacuum sewerage system, particularly for pneumatically operated sanitary appliances, such as vacuum closets, urinals or wash basins. The control apparatus comprises an activating element, such as a push button, which is integrated in a housing and moved relative to this housing against a force to operate a control valve which comprises a valve disc and a valve piston and transmits vacuum pressure from a vacuum source to the evacuation and water valves. A compact control apparatus is provided which prevents continuous transmittal of vacuum to the evacuation and water valves if the activating element is maloperated. The piston of the control valve is moved by a diaphragm separating a first and a second chamber within the housing. The first chamber is connectable through the first control valve to the evacuation and/or water valves and is connected to the vacuum source. The second chamber is in communication with ambient air when the activating element returns to its original position after having been moved against the force into the housing. A spring element drives the diaphragm towards the second chamber, whereby the diaphragm is moved against the spring force and opens the control valve if the pressure within the first chamber is sufficiently smaller than the pressure within the second chamber. A method for operating a valve.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
E03D 5/09 (2013.01 - EP US); E03F 1/006 (2013.01 - EP US); Y10S 137/907 (2013.01 - EP US); Y10T 137/3109 (2015.04 - EP US); Y10T 137/402 (2015.04 - EP US)
Designated contracting state (EPC)
AT DE ES FI FR GB GR IT PT SE
DOCDB simple family (publication)
US 6360768 B1 20020326; AT E197831 T1 20001215; DE 19633178 A1 19980219; DE 59702681 D1 20010104; EP 0825303 A1 19980225; EP 0825303 B1 20001129; ES 2153148 T3 20010216; GR 3035424 T3 20010531; PT 825303 E 20010430
DOCDB simple family (application)
US 90992597 A 19970812; AT 97113543 T 19970806; DE 19633178 A 19960817; DE 59702681 T 19970806; EP 97113543 A 19970806; ES 97113543 T 19970806; GR 20010400255 T 20010214; PT 97113543 T 19970806