Dispenser for a bottle top
AssigneeFirma Rudolf Brand
InventorKarl Marterer
Life of this patent
Estimating the term…
Abstract
Dispenser for a bottle top with a cylinder and a plunger that is adjustable relative to the cylinder for drawing up an adjustable quantity of liquid esp. reagent with a suction valve and a discharge valve and having a glass cylinder secured to a valve block which is threadedly received on a reagent bottle and where a cylinder sleeve slidably and rotably extends over the glass cylinder and is connected with the plunger which slides in the glass cylinder and where means are provided for adjusting the stroke of the plunger and to indicate the suction volume.
Claims13
Liquid dispenser for bottle top having a cylinder and a plunger adjustable relative to said cylinder for drawing up an adjustable quantity of liquid such as reagent comprising said cylinder, a valve block including a suction valve and a discharge valve connected with said cylinder, said valve block being adapted to be threadedly mounted on a bottle, a cylinder sleeve provided with a scale received concentrically over said cylinder and being slidable and rotatable relative to said cylinder and being connected with said plunger, said plunger being slidable in said cylinder, and means being provided for adjusting the stroke of said plunger to determine and indicate a desired volume to be dispensed, said means comprising a contact ring fixed on said cylinder, and an adjustable excursion stop in said cylinder sleeve for cooperating with said ring, said cylinder sleeve defining a longitudinal slot, said adjustable excursion stop being disposed in said slot.
Dependencies are inferred from the claim text.