Patent ID: 6332357
Filing Date: 2001-12-25
Classification: B22D,G01F

Abstract:
A suction-type liquid measuring device comprising:a vessel provided with a suction pipe extending from its top end and an inlet/outlet pipe protruding downward from its bottom end;means for creating a negative pressure connected to the suction pipe of the vessel;wherein the inlet/outlet pipe is bent at a right angle at an intermediate portion thereof such that the distal end portion of the inlet/outlet pipe extends along a straight line and is located at a level flush with the bent portion;whereby a pressure in the vessel is capable of being brought to a negative pressure to thereby suck a liquid from the inlet/outlet pipe so that the liquid is measured and held at a constant volume in the vessel using a balance between the negative pressure in the vessel with gravitational pull on the liquid; andwherein the height of the liquid is capable of being increased in the vessel when the negative pressure is increased in the vessel.