EP 0182145 B2 19940309 - One piece synthetic material fan impeller.
Title (en)
One piece synthetic material fan impeller.
Title (de)
Einstückiges Kunststoff-Lüfterrad.
Title (fr)
Roue de ventilateur de matière synthétique en une pièce.
Publication
Application
Priority
DE 3441077 A 19841109
Abstract (en)
[origin: US4639193A] A single-piece plastic fan wheel for a radial fan comprises a hub, a blade ring having fan blades and an intermediate piece interconnecting the hub and the blade ring. The hub comprises an inner hub ring attachable to the drive shaft of a motor and an outer hub ring connected to the inner hub ring by a plurality of axially and radially extending resilient strips which serve to damp tangential vibrations emanating from the motor owing to pulsations in the torque output thereof.
IPC 1-7
IPC 8 full level
F04D 29/28 (2006.01)
CPC (source: EP US)
F04D 29/281 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0182145 A1 19860528; EP 0182145 B1 19900307; EP 0182145 B2 19940309; AT E50836 T1 19900315; DE 3576391 D1 19900412; JP S61116097 A 19860603; US 4639193 A 19870127
DOCDB simple family (application)
EP 85113621 A 19851025; AT 85113621 T 19851025; DE 3576391 T 19851025; JP 24867885 A 19851106; US 78239985 A 19851001