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Current content: 155 263 406 patent documents

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215 613 new documents added

1 342 057 documents amended

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EP 1025360 A1 20000809 - INTERNAL GEAR MACHINE

Title (en)

INTERNAL GEAR MACHINE

Title (de)

INNENZAHNRADMASCHINE

Title (fr)

MACHINE A ENGRENAGE INTERNE

Publication

EP 1025360 A1 20000809 (DE)

Application

EP 98952712 A 19981017

Priority

DE 19746983 A 19971024
EP 9806588 W 19981017

Abstract (en)

[origin: DE19746983A1] The inner toothed machine, working with a pinion with outer teeth, has a sealing bar (14) as the seal. It has a cross section surface (26) as a closed polygon in a triangle shape. The sides (28-30) of the cross section surface (26) have a convex camber, and the corners (31-33) have a convex rounding.

IPC 1-7

F04C 2/10

IPC 8 full level

F04C 2/10 (2006.01)

CPC (source: EP)

F04C 2/101 (2013.01)

Citation (search report)

See references of WO 9922142A1

Designated contracting state (EPC)

CH DE FR GB IT LI SE

DOCDB simple family (publication)

DE 19746983 A1 19990429; DE 59802272 D1 20020110; EP 1025360 A1 20000809; EP 1025360 B1 20011128; WO 9922142 A1 19990506

DOCDB simple family (application)

DE 19746983 A 19971024; DE 59802272 T 19981017; EP 9806588 W 19981017; EP 98952712 A 19981017