(19)
(11) EP 0 271 279 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.07.1989 Bulletin 1989/28

(43) Date of publication A2:
15.06.1988 Bulletin 1988/24

(21) Application number: 87310616.5

(22) Date of filing: 02.12.1987
(51) International Patent Classification (IPC)4: B04B 9/14
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 12.12.1986 US 941290

(71) Applicant: UNITED COAL COMPANY
Bristol Virginia 24203 (US)

(72) Inventor:
  • Smith, Lloyd Batre
    Bristol Tennessee 37620 (US)

(74) Representative: Allen, William Guy Fairfax et al
J.A. KEMP & CO. 14 South Square Gray's Inn
London WC1R 5LX
London WC1R 5LX (GB)


(56) References cited: : 
   
       


    (54) Centrifuge


    (57) A centrifuge comprising a bowl 16 supported on a shaft 12, having a gimbal-like mounting 11 and a resilient bearing 19, is provided with a neutralizer ring 18 fixed to the drum 16 around the drum mount 15 such that the neutralizer ring 18 neutralizes the effects of imbalance in a predetermined weight of particulate material 17 and causes the geometric axis and the instantaneous dynamic axis of the rotor system to intersect at said gimbal-like mounting thereby reducing reactive forces exerted on said gimbal-like mounting.







    Search report