Patent ID: 6036668
Filing Date: 2000-03-14
Classification: A61M,B67D

Abstract:
A process for the conveyance and measuring of a liquid running in a conveyance assembly (1) from at least one receiver (5) included in said conveyance assembly (1) in the direction of at least one receptacle external to the conveyance assembly (1) and vice versa, the conveyance being effected by a drive assembly (2) connected to said conveyance assembly (1) by providing a positive or negative pressure upon a gas cushion in said at least one receiver (5) above the liquid to be conveyed, wherein said conveyance assembly (1) and said drive assembly (2) are actuated by a control and signal unit (19) and said drive assembly (2) is composed of at least one cylinder (13) having a movable piston (15) and driving means (16) suitable to controllably operate the movement of said piston (15) in said cylinder (13) such that it exerts either an isobaric positive or negative pressure and wherein the volume of the liquid transported into said conveyance assembly (1) is measured in said drive assembly (2) by determining the volumina that have been covered by said piston (15) in the course of its displacements in said cylinder (13).