EP 0067048 B1 19841212 - A PUMP
Title (en)
A PUMP
Publication
Application
Priority
- GB 8117397 A 19810606
- GB 8210093 A 19820405
Abstract (en)
[origin: EP0067048A2] A double diaphragm pump comprises a pair of chambers (14, 15), each with a plate and diaphragm arrangement (23, 24 and 25, 26) which forms parts of the boundaries thereof. A pressurised fluid such as air is directed alternately to respective spaces (31, 32) outside the chambers and adjacent the diaphragms by means of an actuating means (30) which comprises a spool (34) in a spool chamber (33). A control means (9) which comprises a rod (27) extending between the plates (23 and 25) controls operation of the actuating means. The control means which is movable with the diaphragms directs fluid alternately to the ends of the spool chamber and prevents supply of fluid to an end of the spool chamber opposite to that end to which fluid is directed at a selected moment.
IPC 1-7
IPC 8 full level
F01L 25/06 (2006.01); F04B 43/073 (2006.01)
CPC (source: EP US)
F01L 25/066 (2013.01 - EP US); F04B 43/073 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0067048 A2 19821215; EP 0067048 A3 19830209; EP 0067048 B1 19841212; DE 3261533 D1 19850124; GB 2102509 A 19830202; GB 2102509 B 19840905
DOCDB simple family (application)
EP 82302879 A 19820603; DE 3261533 T 19820603; GB 8216528 A 19820607