The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 2002
Filed:
Apr. 03, 2000
Eppendorf AG, Hamburg, DE;
Abstract
A pipetting system including a syringe ( ), a working piston ( ) connectable with the syringe piston ( ) and extending into a working chamber ( ), an actuating piston ( ) extending into the working chamber, and a storage chamber ( ) connected with the working chamber ( ) by a valve ( ) that provides for flow of the hydraulic liquid, which fills both chambers, from the working chamber ( ) into the storage chamber when the working piston ( ) is displaced into the working chamber ( ), for flow of the hydraulic fluid from the storage chamber ( ) into the working chamber ( ) when the actuating piston is displaced out of the working chamber, and that separates the storage and working chambers ( ) when the actuating piston ( ) is advanced into the working chamber.