Pipette tip

US9156030B2 · kind B2 · utility

Assignee

• Eppendorf AG · DE

Inventor

• Jochen Beese · Norderstedt, DE

Key dates

• Filing date: Dec 13, 2012
• Grant date: Oct 13, 2015
• Expiry date: Aug 3, 2033

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01L2200/0689
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A pipette tip having the shape of an elongate small tube with a lower opening at the lower end for the passage of liquid, and an upper opening at the upper end, wherein a seat area exists on the inner circumference contiguous to the upper opening, which serves for plugging it onto a standardized conical attachment piece of a pipetting device, wherein the seat area has a retaining area with axially extending ribs projecting radially towards the inside, and below the retaining area a sealing area and is configured such that when the pipette tip is plugged onto the attachment piece with its seat area by a plugging force which ensures retaining and sealing of the pipette tip on the attachment piece, the ribs are partly plastically deformed, and elastic deformation occurs in the seat area outside of the ribs.