Owner Westport Power Inc.

Inventors Batenburg, Greg

Agent Davies Collison Cave

Pub. Number AU-B-2006326808

PCT Pub. Number WO2007/071016

Priority 2,527,122 20.12.05 CA

Filing date 29 November 2006

Wipo publication date 28 June 2007

Acceptance publication date 9 February 2012

F17C 7/02 (2006.01) Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass

F04B 49/06 (2006.01) Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups - Control using electricity

F04B 49/08 (2006.01) Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups - Regulating by delivery pressure

F17C 13/02 (2006.01) Details of vessels or of the filling or discharging of vessels

G01F 23/14 (2006.01) Level indicators - by measurement of pressure

G05D 9/12 (2006.01) Level control, e.g. controlling quantity of material stored in vessel

G05D 16/20 (2006.01) Control of fluid pressure - characterised by the use of electric means