EP 0983440 A1 20000308 - RECIPROCATING DIAPHRAGM PUMP WITH PACKLESS PISTON-CYLINDER UNIT
Title (en)
RECIPROCATING DIAPHRAGM PUMP WITH PACKLESS PISTON-CYLINDER UNIT
Title (de)
KOLBENMEMBRANPUMPE MIT DICHTUNGSLOSER KOLBEN-ZYLINDEREINHEIT
Title (fr)
POMPE A MEMBRANE A PISTON AVEC UNITE PISTON-CYLINDRE SANS GARNITURE
Publication
Application
Priority
- DE 29708906 U 19970521
- EP 9802766 W 19980512
Abstract (en)
[origin: WO9853208A1] The invention relates to a solution for sealing the piston-cylinder unit (1, 2) of reciprocating diaphragm pumps which ensures that said piston-cylinder unit (1, 2) is permanently and reliably sealed while being simple to assemble. To this end the invention provides for a piston-cylinder unit (1, 2) which presents almost no play in the micrometer ( mu m) range and which is sealed by hydrodynamically sealing the slot (3).
IPC 1-7
IPC 8 full level
F04B 13/00 (2006.01); F04B 23/06 (2006.01); F04B 53/00 (2006.01); F04B 53/12 (2006.01)
CPC (source: EP US)
F04B 13/00 (2013.01 - EP US); F04B 23/06 (2013.01 - EP US); F04B 53/008 (2013.01 - EP US); F05C 2203/0804 (2013.01 - EP US)
Citation (search report)
See references of WO 9853208A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE
DOCDB simple family (publication)
WO 9853208 A1 19981126; AT E212697 T1 20020215; AU 736918 B2 20010809; AU 7911498 A 19981211; DE 29708906 U1 19970717; DE 59802964 D1 20020314; EP 0983440 A1 20000308; EP 0983440 B1 20020130; NZ 501200 A 20010629; US 6299419 B1 20011009
DOCDB simple family (application)
EP 9802766 W 19980512; AT 98929297 T 19980512; AU 7911498 A 19980512; DE 29708906 U 19970521; DE 59802964 T 19980512; EP 98929297 A 19980512; NZ 50120098 A 19980512; US 42435500 A 20000121