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Current content: 155 047 832 patent documents

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182 269 new documents added

1 089 556 documents amended

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EP 0842365 B1 20000405 - LIQUID RING MACHINE

Title (en)

LIQUID RING MACHINE

Title (de)

FLÜSSIGKEITSRINGMASCHINE

Title (fr)

MACHINE A ANNEAU LIQUIDE

Publication

EP 0842365 B1 20000405 (DE)

Application

EP 96933311 A 19960731

Priority

DE 9601429 W 19960731
DE 19528010 A 19950731

Abstract (en)

[origin: WO9705392A1] The invention concerns a liquid ring machine in which decrease in flow is reduced in that the machine housing (1) is covered at least on its inner periphery (3) with a layer (4) comprising a structured surface with reduced surface roughness.

IPC 1-7

F04C 19/00

IPC 8 full level

F01C 21/10 (2006.01); F04C 19/00 (2006.01)

CPC (source: EP)

F01C 21/106 (2013.01); F04C 19/00 (2013.01); F04C 2230/91 (2013.01); F05C 2225/02 (2013.01)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

WO 9705392 A1 19970213; CN 1097172 C 20021225; CN 1185198 A 19980617; DE 59604899 D1 20000511; EP 0842365 A1 19980520; EP 0842365 B1 20000405

DOCDB simple family (application)

DE 9601429 W 19960731; CN 96194126 A 19960731; DE 59604899 T 19960731; EP 96933311 A 19960731