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:
May. 24, 1988
Filed:
Sep. 28, 1984
L Erik Ohlin, Stocksund, SE;
Swelab Instrument AB, Johanneshov, SE;
Abstract
An apparatus and method for serial dilution of liquid samples comprises a power-driven measuring valve having a rotatably mounted valve body provided with a single calibrated measuring passageway. During a dilution cycle the measuring passageway in different rotational positions of the valve body successively isolates a measured volume of a sample to be diluted and an equal volume of a first diluted solution of the sample which has been prepared by mixing the isolated undiluted volume of the sample with a measured volume of diluent. In a valve body position between said different rotational positions the measuring passageway is connected to form part of a rinsing flow system.