Patent · US Expired

Injection valves

US6840456B1 · kind B1 · utility

0Cited by

4References

25Claims

0Family size

Assignee

The United States of America as represented by the Secretary of the Army · US

Inventors

Waleed M. Maswadeh · Edgewood, US
A. Peter Snyder · Bel Air, US

Key dates

Filing date	Sep 11, 2002
Grant date	Jan 11, 2005
Priority date	—
Expiry date	Apr 18, 2023

Classification

Technology area (CPC G)Physics
CPC primaryG01N2030/204
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An injection valve is provided. A first conduit is disposed between first and second chambers of the valve. An entrance to the first conduit is located within the first chamber. A second conduit is concentrically disposed within the first conduit so that there is a first flow passage between the first and second conduits connecting the first and second chambers. The second conduit has an entrance communicating with the first chamber via the entrance of the first conduit and an exit defining a first outlet port of the valve. A cover opens and closes a first inlet port of the first chamber, and a biasing device biases the cover closed. An actuator moves the cover from the closed position to open the first inlet port.

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