EP 0085945 B1 19851030 - MEMBRANE MODULE FOR A PNEUMATIC CONTROL SYSTEM
Title (en)
MEMBRANE MODULE FOR A PNEUMATIC CONTROL SYSTEM
Publication
Application
Priority
DE 3204100 A 19820206
Abstract (en)
[origin: US4522220A] A diaphragm module for pneumatic control systems comprises at least a pressure comparing stage and a force/pressure transducer controlled by said stage. The design of said module comprises chambers in a housing divided by diaphragms, wherein the force transmission between the diaphragms is achieved by intermediately arranged diaphragm disks. For a low friction mounting of the diaphragm disks in the housing without fixation with the intermediately arranged diaphragms the module comprises the following design: The diaphragm disks (36-39) comprise central pin projections (40) and recesses (44), wherein the pin projection of a diaphragm disk each is inserted into a recess of an adjacent diaphragm disk via a central hole (35) provided in the comparing or tightening diaphragm (31, 33, 34), respectively; the housing (11-16) and the diaphragm disk (36-39) comprise annular ribs (42) which are pressed into the diaphragms (30-34) for tightening when pressure is applied; and at least two diaphragm disks (36-39) comprise in their plane surfaces concentric annular grooves (43) which are engaged by annular collars (41) of related diaphragms (FIG. 1).
IPC 1-7
IPC 8 full level
F15B 5/00 (2006.01); F15C 3/04 (2006.01); F15C 5/00 (2006.01)
CPC (source: EP US)
F15B 5/00 (2013.01 - EP US); F15C 3/04 (2013.01 - EP US); F15C 5/00 (2013.01 - EP US); Y10T 137/2409 (2015.04 - EP US)
Citation (examination)
Hengstenberg "Messen und Regeln in der chemischen Technik", Springer Verlag 1964, S. 1159 und 1170
Designated contracting state (EPC)
CH DE GB LI SE
DOCDB simple family (publication)
EP 0085945 A1 19830817; EP 0085945 B1 19851030; DE 3204100 A1 19830818; DE 3361089 D1 19851205; US 4522220 A 19850611
DOCDB simple family (application)
EP 83100988 A 19830203; DE 3204100 A 19820206; DE 3361089 T 19830203; US 46258883 A 19830131