Patent · US Active

Metering pump for liquid chromatography

US11774415B2 · kind B2 · utility

0Cited by

22References

22Claims

0Family size

Assignee

Waters Technologies Corporation · US

Inventors

Joshua A. Burnett · Taunton, US
Rose Solow · Newark, US
David A. Simpson · Farmington, US
Peter U. Osswald · Bohmte, DE
John M. Auclair · Seekonk, US
Michael LeBeau · Attleboro, US

Key dates

Filing date	Mar 25, 2021
Grant date	Oct 3, 2023
Priority date	—
Expiry date	Sep 13, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG01N2030/328
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Described is a metering pump that may be used to meter volumes of sample in a chromatography system. The metering pump has a modular configuration that allows for separation of a head pod from a drive assembly for easy serviceability. The head pod includes a pump head, cartridge housing, seal wash housing and plunger. The drive assembly can be implemented in an inline drive configuration. Alternatively, the drive assembly can be implemented in an offset drive configuration in which a stepper motor is displaced laterally from other drive assembly components but is coupled through a belt and pulley system.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.