EP 0023784 A1 19810211 - Power-driven centrifugal air blower.
Title (en)
Power-driven centrifugal air blower.
Title (de)
Motorgetriebenes Zentrifugalgebläse für Luft.
Title (fr)
Ventilateur centrifuge pour l'air entraîné par un moteur.
Publication
Application
Priority
GB 7927068 A 19790803
Abstract (en)
A power-driven centrifugal air blower whose rotary impeller (15) takes the form of a generally cylindrical brush. The brush is comprised of a relatively dense mass of bristles each of which extends substantially radially from a central hub. The bristles thus replace the multiple individual blades of the impeller used in a conventional power driven centrifugal air blower. Preferably they are sufficiently relatively spaced apart from one another, and made of suitably non-electro-static material, that essentially no filtration of the indrawn air takes place as the air passes through the impeller.
IPC 1-7
IPC 8 full level
F04D 17/00 (2006.01); F04D 17/16 (2006.01); F04D 23/00 (2006.01); F04D 29/28 (2006.01); F04D 29/30 (2006.01)
CPC (source: EP KR)
F04B 17/02 (2013.01 - KR); F04D 17/167 (2013.01 - EP); F04D 23/001 (2013.01 - EP)
Citation (search report)
- US 3692421 A 19720919 - DWORSKI MICHAEL
- US 2856117 A 19581014 - PETER SCHLUMBOHM
- US 2509376 A 19500530 - ALLEN TRASK
Designated contracting state (EPC)
AT BE CH DE FR IT LI LU NL SE
DOCDB simple family (publication)
EP 0023784 A1 19810211; EP 0023784 B1 19840509; AT E7418 T1 19840515; AU 6070680 A 19810205; CA 1163968 A 19840320; DE 3067747 D1 19840614; DK 333180 A 19810204; GB 2055968 A 19810311; GB 2055968 B 19831116; JP S5623593 A 19810305; KR 830003659 A 19830621
DOCDB simple family (application)
EP 80302408 A 19800717; AT 80302408 T 19800717; AU 6070680 A 19800723; CA 357562 A 19800804; DE 3067747 T 19800717; DK 333180 A 19800801; GB 7927068 A 19790803; JP 10491580 A 19800730; KR 800003079 A 19800802