Dispenser for taking up and dispensing volumes of fluid and a method for mounting and releasing a piston-cylinder unit from the dispenser

US11547992B2 · kind B2 · utility

Assignee

• BRAND GMBH & CO KG · DE

Inventors

• Jürgen Schraut · Landstuhl, DE
• Daniel SETZER · Schneeberg, DE
• Renate Rempt · Wertheim, DE

Key dates

• Filing date: Feb 20, 2018
• Grant date: Jan 10, 2023
• Expiry date: Dec 10, 2039

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01L2400/0478
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A dispenser for receiving and dispensing volumes of fluid, on which a piston/cylinder unit having a piston and a cylinder, can be fitted in a releasable manner by means of a movement running at least substantially in an axial direction of the dispenser. The dispenser has a piston actuator for moving the piston relative to the cylinder. The piston actuator is arranged in a movable manner in the dispenser and is driven by means of a drive. The dispenser has a locking element which is arranged in a movable manner in the dispenser and is driven by a further drive. Also disclosed is a system for receiving and dispensing volumes of fluid, to a method for fitting a piston/cylinder unit in a releasable manner on a dispenser, and to a method for releasing a piston/cylinder unit which has been fitted on a dispenser.