Power plants – Pressure fluid source and motor – Having condition responsive control in a system of distinct...
Reexamination Certificate
2007-09-28
2010-06-29
Leslie, Michael (Department: 3745)
Power plants
Pressure fluid source and motor
Having condition responsive control in a system of distinct...
C060S484000, C060S486000
Reexamination Certificate
active
07743611
ABSTRACT:
The present invention overcomes drawbacks whereby the supply of pressure oil to a hydraulic cylinder for operating a ground working device is temporarily cut, and operation of the ground working device is temporarily stopped when a control valve for the travel device is operated while a control valve for the ground working device is being operated. When control valves (V4, V5) for the travel devices are operated during operation of control valves (V6, V7, V8) for the ground working device, and a first flow channel switching valve (V12) is switched from an operating position (31) to a travel position (34), a second flow channel switching valve (V13) is switched from a non-feeding position (39) to a feeding position (40) before or at the same time as the first flow channel switching valve (V12).
REFERENCES:
patent: 5832729 (1998-11-01), Reid et al.
patent: 7069674 (2006-07-01), Arii
patent: 7571558 (2009-08-01), Horii
patent: 2006/0266029 (2006-11-01), Asakage et al.
patent: 1726724 (2006-11-01), None
patent: 2001050209 (2001-02-01), None
patent: 2003184815 (2003-07-01), None
patent: 2004114762 (2004-04-01), None
patent: 2006161510 (2006-06-01), None
patent: 2006200179 (2006-08-01), None
Kubota Corporation
Leslie Michael
The Webb Law Firm
LandOfFree
Backhoe hydraulic system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Backhoe hydraulic system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Backhoe hydraulic system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4211528