Pipette for use with a pipette tip

US11554367B2 · kind B2 · utility

Assignee

• Eppendorf AG · DE

Inventors

• Martin Seippel · Ahrensburg, DE
• Matthias Kunsch · Hamburg, DE
• Burkhardt Reichmuth · Hamburg, DE
• Tobias David · Bargteheide, DE
• Frank Horstmann · Lensahn, DE
• Jens Wilmer · Ahrensburg, DE
• Marc Wilth · Hamburg, DE

Key dates

• Filing date: Jan 6, 2020
• Grant date: Jan 17, 2023
• Expiry date: Feb 11, 2041

Classification

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

Abstract

A pipette for use with a pipette tip includes a housing, a pin on the bottom end of the housing holding a pipette tip having first means for form-fit connection and a second means for form-fit connection which can be shoved onto the pin, constricting the pin, and/or expanding the tip before form-fit connection with the pin, a drive apparatus, at least one locking sleeve arranged concentric to the pin which is guided toward the pin in the housing, wherein the locking sleeve has a locked position having a pin in the inside constricted by shoving on a pipette tip, and/or is bordered on the outside by a tip shoved onto the pin, preventing a release from the pin, and the locking sleeve is upwardly displaceable out of the locked position so that the pin, and/or the tip is released, and the tip is removable from the pin.