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:
Jan. 29, 1991
Filed:
Jan. 30, 1989
Applicant:
Inventors:
Assignee:
Labsystems OY, Helsinki, FI;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01L / ;
U.S. Cl.
CPC ...
422100 ; 422 99 ; 7386413 ; 7386414 ; 7386416 ; 7386418 ;
Abstract
The invention relates to a pipette in which a piston is reciprocated in a cylinder by means of an electric motor. The pipette is preferably provided with a volume adjustment nut comprising locking mechanism to prevent accidental volume adjustment. According to another preferable embodiment the pipette is provided with contact switches for automatically stopping the motor. According to a third preferable embodiment the pipette comprises a cylinder assembly comprising a mechanism for ejecting a tip reservoir of the cylinder.