Patent · US Expired

Liquid dispensing apparatus

US7427379B1 · kind B1 · utility

2Cited by

47References

15Claims

0Family size

Assignee

BIOTAGE AB · SE

Inventors

Peter Hagerlid · Uppsala, SE
Hanno Ehring · Uppsala, SE
Bjorn Ekstrom · Uppsala, SE

Key dates

Filing date	Mar 20, 2000
Grant date	Sep 23, 2008
Priority date	—
Expiry date	Mar 20, 2020

Classification

Technology area (CPC G)Physics
CPC primaryG01N35/1074
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A liquid dispensing apparatus comprises a liquid reservoir (32), an outlet port (6; 36) and driving means for forcing liquid (4) through the outlet port (6, 36). The driving means generates a pulse of gas which impinges upon the liquid (4) in the reservoir (32) so as to force liquid (4) through the outlet port (6, 36). Also disclosed is a cassette comprising a plurality of cartridges for dispensing liquid therefrom. Each cartridge comprises a liquid reservoir (32) and an outlet member (36) mounted so as to close an opening (34) in the liquid reservoir (32). The outlet member (36) provides an outlet port through which the liquid can be forced by a pulse of pressurised gas.

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