Patent · US Expired

Device for producing high pressure in a fluid in miniature

US5964416A · kind A · utility

103Cited by

50References

22Claims

0Family size

Assignee

Boehringer Ingelheim GmbH · DE

Inventors

Joachim Jaeger · Bruchsal, DE
Pasquale Cirillo · Dortmund, DE
Joachim Eicher · Karlsruhe, DE
Johannes Geser · Gerlingen, DE

Key dates

Filing date	Oct 4, 1996
Grant date	Oct 12, 1999
Priority date	—
Expiry date	Oct 4, 2016

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.