(19)
(11) EP 0 215 430 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
07.10.1987 Bulletin 1987/41

(43) Date of publication A2:
25.03.1987 Bulletin 1987/13

(21) Application number: 86112475

(22) Date of filing: 09.09.1986
(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 16.09.1985 US 776451

(71) Applicant: STERLING DRUG INC.
 ()

(72) Inventor:
  • Courtney, Andrew Steven
     ()

   


(54) Dispenser for automatically metering liquids in response to liquid level


(57) A dispenser for automatically metering a liquid-soluble or liquid-suspendible material into a liquid environment in response to a rise and fall in the level of the liquid which comprises a buoyant container adapted for holding the material to be dispensed, said container being adapted for pivotal mounting on an axis which is offset from the axis of the center of buoyancy of said container by an amount from greater than 0% up to about 200% of the distance, a measured along a line through the pivot axis, between said center of buoyancy axis and the outer perimeter of said container, said container having one or more openings in a wall thereof located below the center of buoyancy of said container.







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