(19)
(11) EP 0 051 382 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
30.03.1983 Bulletin 1983/13

(43) Date of publication A2:
12.05.1982 Bulletin 1982/19

(21) Application number: 81304879

(22) Date of filing: 20.10.1981
(84) Designated Contracting States:
BE CH DE FR GB IT LI NL SE

(30) Priority: 04.11.1980 GB 8035429

(71) Applicant: THE MASTERMIX ENGINEERING COMPANY LIMITED
 ()

(72) Inventor:
  • English, Robert William
     ()

   


(54) Mixing apparatus


(57) Mixing apparatus as disclosed in published European Patent Application No. 0000827 is provided with means (20) for sensing the electric current drawn by the motor driving the rotary agitator of the apparatus. In response to a fall in the motor current, an override signal (24) is produced to cause the agitator to be lowered automatically back into the mixing vessel irrespective of the agitator positioning control signals (16,18) derived from the noise level sensor (14) of the apparatus.






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