EP 0922166 B1 20040331 - PISTON VACUUM PUMP WITH DISCHARGE VALVE
Title (en)
PISTON VACUUM PUMP WITH DISCHARGE VALVE
Title (de)
KOLBENVAKUUMPUMPE MIT AUSLASSVENTIL
Title (fr)
POMPE A VIDE A PISTON DOTEE D'UNE SOUPAPE DE SORTIE
Publication
Application
Priority
- DE 19634517 A 19960827
- EP 9703042 W 19970612
Abstract (en)
[origin: DE19634517A1] The invention relates to a piston vacuum pump with at least one cylinder (2) and a piston (3) located therein,a gas inlet (7, 31) and a discharge valve (7, 31) located on the face. To improve particulate compatibility the entire face of the cylinder forms the valve disk (13, 33) of the discharge valve (12, 32) and the face edge of the cylinder (2) forms the valve seat (14, 42).
IPC 1-7
IPC 8 full level
F04B 37/14 (2006.01); F04B 39/08 (2006.01); F04B 39/10 (2006.01); F04B 53/10 (2006.01)
CPC (source: EP)
F04B 37/14 (2013.01); F04B 39/08 (2013.01); F04B 39/108 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DE 19634517 A1 19980305; DE 59711474 D1 20040506; EP 0922166 A1 19990616; EP 0922166 B1 20040331; WO 9809080 A1 19980305
DOCDB simple family (application)
DE 19634517 A 19960827; DE 59711474 T 19970612; EP 9703042 W 19970612; EP 97928176 A 19970612