Owner Komatsu Ltd.

Inventors Yoshida, Nobumi; Kageyama, Masato; Shoji, Yukio

Agent Spruson & Ferguson

Pub. Number AU-B-2005201599

Priority 2004-152047 21.05.04 JP

Filing date 15 April 2005

Wipo publication date 8 December 2005

Acceptance publication date 22 January 2009

E02F 9/24 (2006.01) Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups - Safety devices

E02F 9/20 (2006.01) Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups - Drives

E02F 9/22 (2006.01) Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups - Hydraulic or pneumatic drives

F04B 49/10 (2006.01) Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups - Other safety measures

F04B 51/00 (2006.01) Testing machines, pumps, or pumping installations

F15B 19/00 (2006.01) Testing fluid-pressure actuator systems or apparatus, so far as not provided for elsewhere

F15B 20/00 (2006.01) Safety arrangements for fluid actuator systems

F15B 21/04 (2006.01) Common features of fluid actuator systems

F15B 21/08 (2006.01) Common features of fluid actuator systems

F16D 31/02 (2006.01) Couplings or clutches with a fluid or semifluid as power-transmitting means - using pumps with pistons or plungers working in cylinders

G01L 13/00 (2006.01) Devices or apparatus for measuring differences of two or more fluid pressure values

G01M 3/26 (2006.01) Investigating fluid tightness of structures - by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors

G01M 13/00 (2006.01) Testing of machine parts

G01M 19/00 (2006.01) Testing of structures or of apparatus, not provided for in the other groups of this subclass