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Current content: 159 823 134 patent documents

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143 307 new documents added

1 003 170 documents amended

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EP 2853750 B1 20190619 - A rotary fan

Title (en)

A rotary fan

Title (de)

Drehlüfter

Title (fr)

Ventilateur rotatif

Publication

EP 2853750 B1 20190619 (EN)

Application

EP 13306348 A 20130930

Priority

EP 13306348 A 20130930

Abstract (en)

[origin: EP2853750A1] A rotary fan comprising a rotor and a fan support structure. The rotor comprises a plurality of permanent magnets located along a circumference of the rotor and a plurality of fan blades. The support structure comprises a plurality of electromagnets. At least some of the plurality of electromagnets are configured to cause the rotor to rotate when powered by an alternating electric current.

IPC 8 full level

F04D 25/06 (2006.01)

CPC (source: EP)

F04D 25/066 (2013.01)

Citation (examination)

US 6418927 B1 20020716 - KULLIK GOETZ [DE]

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 2853750 A1 20150401; EP 2853750 B1 20190619

DOCDB simple family (application)

EP 13306348 A 20130930