Potentiometric metering apparatus

US4347750A · kind A · utility

Assignee

• EASTMAN KODAK COMPANY · US

Inventors

• Glenn E. Tersteeg · Honeoye Falls, US
• Anthony P. DiFulvio · Rochester, US

Key dates

• Filing date: Jun 16, 1980
• Grant date: Sep 7, 1982
• Expiry date: Jun 16, 2000

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2035/0486
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An analyzer for biological fluids includes a sample fluid metering device that is movable to a first metering position located directly over a generally planar test element supported in a metering station, and a reference fluid metering apparatus that is movable to a second metering position closely adjacent the first metering position. The reference fluid metering apparatus comprises a reference fluid supply reservoir supported in a location spaced from the metering station, an aspirator operable to aspirate reference fluid from the reservoir and to deposit the fluid on the test element positioned at the metering station and a cam and gear arrangement driven by a single drive motor for moving the aspirator linearly toward and away from the supply reservoir and toward and away from the metering station and for pivotally moving the aspirator between a position spaced from the supply reservoir and a position spaced from the metering station.