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:
Nov. 19, 2002
Filed:
Aug. 26, 1999
Osmo Suovaniemi, Helsinki, FI;
Biohit OYJ, Helsinki, FI;
Abstract
A suction device for dispensing a liquid having a membrane device mounted in a gastight manner in the air space jointly formed by the cylindrical space of its end part and the sample space of a tip to be mounted onto the end part, the membrane device comprising a membrane, made of a liquid and gas impermeable, flexible, reversibly deformable material, with which membrane the reciprocating device in the cylindrical space can be brought into contact for taking a liquid sample into the sample space of the tip and/or removing it therefrom. Also, a method for dispensing a liquid with a suction device has the reciprocating device in the cylindrical space enclosed within the end part of the suction device brought into contact with a membrane of the membrane device mounted in a gastight manner in the air space jointly formed by the cylindrical space and the sample space of the tip, to be mounted onto the end part, for taking a sample into the sample space and/or removing it therefrom and wherein the membrane device is released from the end part of the suction device by bringing the reciprocating device past its position used for taking a sample and/or removing it.