Pipette and process for producing a pipette

US7344680B2 · kind B2 · utility

Assignee

• BRAND GMBH & CO KG · DE

Inventors

• Peter Mahler · Kreuzwertheim, DE
• Renate Rempt · Wertheim, DE
• Peter Prokopp · Wertheim, DE

Key dates

• Filing date: Jan 16, 2003
• Grant date: Mar 18, 2008
• Expiry date: Aug 14, 2024

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01L3/0279
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A pipette has a preferably thermoplastic pipette shaft, for slipping on a likewise preferably thermoplastic pipette tip, has a slip-on section which opens at least slightly conically, and an attachment section which is formed on the lower end of the pipette shaft and onto which the slip-on section of the pipette tip is slipped. A sealing section which is made of an elastically-flexible plastic material which seals well with low withdrawal forces is provided on the attachment section. Furthermore, preferably, a fixing section is formed on the plastic material of the attachment section of the pipette shaft at a location that is axially offset relative to the sealing section. The sealing section of elastic-flexible plastic material is molded directly, retentively, on the preferably thermoplastic material of the pipette shaft.