Patent ID: 9731953
Date: 2017-08-15
CPC Classifications: B67C,G01F

Claim:
1. A cylinder-and-piston assembly for a bottle attachment apparatus for handling liquids, comprising: a cylinder-and-piston assembly for suctioning and exhausting liquid, a valve block assembly, and a fastening assembly for fastening valve block assembly on a storage bottle, wherein the cylinder-and-piston assembly has a cylinder which is attachable to the valve block assembly, a central axis that defines a longitudinal direction, a piston which is displaceable in a sealed manner in the longitudinal direction in the cylinder, and a cylinder housing which is connected to the piston and externally encompasses the cylinder by way of an internal side which faces the cylinder and of an external side which faces away from the cylinder, wherein the piston is displaceable in the cylinder by displacing the cylinder housing, and wherein a stroke length of the piston in the cylinder is delimited by a fixed stop which interacts with a stroke length stop on the cylinder housing and is disposed on the cylinder, wherein the stroke length of the piston when suctioning from the cylinder is delimited by the stroke length stop and when exhausting into the cylinder is delimited by a readjustment stop which is disposed on the piston or on the cylinder housing and interacts with the fixed stop, wherein the readjustment stop is accessible and adjustable by way of a removable seal, wherein the seal is connected by way of ribs to a piston bearing, wherein the readjustment stop is disposed below the removable seal, and wherein the seal has a molding and the piston bearing has a counter molding, and displacement of the seal in relation to the piston bearing moves the seal in the longitudinal direction, the seal being hereby removed.