Electronic dosing drive

US10758899B2 · kind B2 · utility

Assignee

• Eppendorf AG · DE

Inventors

• Burkhardt Reichmuth · Hamburg, DE
• Marc Wilth · Hamburg, DE
• Jörg Sattler · Hamburg, DE

Key dates

• Filing date: May 7, 2018
• Grant date: Sep 1, 2020
• Expiry date: Feb 22, 2039

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2025/249
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An electronic dosing drive comprising a support structure, a threaded spindle with an external thread for driving a plunger, at least one first guide element is firmly connected, and is guided parallel to the threaded spindle on a second guide element, a spindle nut having an internal thread is engaged with the external thread of the threaded spindle, an electric drive motor having a motor shaft is coupled with the spindle nut and is attached to the support structure, an electric control apparatus is connected to the electric drive motor, where the external thread of the threaded spindle has multiple threaded areas that are separated from each other by first flattenings on their circumference extending in the longitudinal direction, and the first flattenings have guide areas that abut the core diameter of the internal thread of the spindle nut.