Patent · US Expired

Device for producing high pressure in a fluid in miniature

US6497373B2 · kind B2 · utility

24Cited by

56References

2Claims

0Family size

Assignee

Boehringer International GmbH · DE

Inventors

Joachim Jaeger · Bruchsal, DE
Pasquale Cirillo · Dortmund, DE
Joachim Eicher · Karlsruhe, DE
Johannes Geser · Gerlingen, DE
Bernhard Freund · Gau-Algesheim, DE
Bernd Zierenberg · Ingelheim am Rhein, DE

Key dates

Filing date	May 13, 2002
Grant date	Dec 24, 2002
Priority date	—
Expiry date	May 13, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/7916
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A miniaturized device for pressurizing fluid. The device includes a hollow piston that provides a fluid path and a valve member. The valve member is configured for axial movement so that the valve axis remains parallel to the piston axis. The valve member is arranged at one end of the hollow piston. The valve member may be partially or completely disposed within the hollow piston. The device is particularly adapted for use in a mechanically operated atomizer to produce an inhalable aerosol of a liquid medicament without the use of propellant gas.

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