Nova Patents
CS864682A2

Odstredive cerpadlo

Abstract

The vortex pump has laterally of its free flow space (4) to a wheel chamber (9, 10), which houses the impeller (6). The outer radial boundary (10) of .Radkammer is of the housing tongue (11) away preferred direction of rotation for pressure barb outflow towards decreasing in the free flow area and causes a constriction of the outer part (4 ') of the flow chamber that out of the housing tongue to pressure barb outflow decreases. These measures permit an improvement in the pump characteristics, in particular a stabilization of Drosseicharakteristik the vortex pump.

Term

No projected expiry on record.

  1. Priority
  2. Filed
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  4. Today

19 members in 13 offices

This recordMember, by publication datePriority claim3 more offices are in the list below

Priority claims3

Priority claims
DocumentOfficeKindDate
782581SwitzerlandA
817825–––
CH19810007825–––

Members19

Family members, oldest first
DocumentOfficeKind
EP0081456A1European Patent Office (EPO)A1
AU9085082AAustraliaA
JPS58104390AJapanA
ZA828668BSouth AfricaB
DD203100A5German Democratic Republic (until 1990)A5
ES517773A0SpainA0
ES8400806A1SpainA1
CS864682A2This recordCzechoslovakia (until 1993)A2
US4475868AUnited States of AmericaA
EP0081456B1European Patent Office (EPO)B1
AT12815TAustriaT
ATE12815T1AustriaT1
DE3263170D1GermanyD1
CS238386B2Czechoslovakia (until 1993)B2
CH654628A5SwitzerlandA5
AU553254B2AustraliaB2
CA1215581ACanadaA
MX157817AMexicoA
JPH0472079B2JapanB2