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Current content: 159 361 214 patent documents

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149 148 new documents added

988 023 documents amended

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EP 0830505 A1 19980325 - A BUOYANT PLUNGER SYSTEM

Title (en)

A BUOYANT PLUNGER SYSTEM

Title (de)

AUFTRIEBSMOTOR

Title (fr)

DISPOSITIF A PISTON PLONGEUR FLOTTANT

Publication

EP 0830505 A1 19980325 (EN)

Application

EP 96919819 A 19960524

Priority

FI 9600298 W 19960524
FI 950876 A 19950227

Abstract (en)

[origin: WO9637701A1] The invention concerns a buoyant plunger system, which comprises an open tube (3) rotating in bearings in a water tank (1), inside of which tube there is a unit consisting of two buoyant plungers (5) with weights (6) and rods (7) attached to them. An apparatus according to the invention can be used, for example, to raise water to a higher level.

IPC 1-7

F03B 17/04

IPC 8 full level

F03B 17/04 (2006.01)

CPC (source: EP)

F03B 17/04 (2013.01)

Citation (search report)

See references of WO 9637701A1

Designated contracting state (EPC)

DE DK ES FI FR GB GR IE IT SE

DOCDB simple family (publication)

WO 9637701 A1 19961128; AU 5821296 A 19961211; EP 0830505 A1 19980325; FI 950876 A0 19950227; FI 950876 A 19961127

DOCDB simple family (application)

FI 9600298 W 19960524; AU 5821296 A 19960524; EP 96919819 A 19960524; FI 950876 A 19950227