Motors: expansible chamber type – Plural relatively movable or rigidly interconnected working... – Condition responsive means for modifying working member...
Reexamination Certificate
2005-05-24
2005-05-24
Look, Edward K. (Department: 3745)
Motors: expansible chamber type
Plural relatively movable or rigidly interconnected working...
Condition responsive means for modifying working member...
C060S422000
Reexamination Certificate
active
06895852
ABSTRACT:
An apparatus and method for controlling hydraulic output to a plurality of actuatable devices are disclosed. The apparatus includes a plurality of main valves coupled, respectively, to the actuatable devices and to respective secondary valves, and also an adjustment valve that is coupled between a pressure source and one or more of the secondary valves. The adjustment valve receives a first indication of a pressure at the one or more secondary valves, and a second indication related to a highest load pressure. The adjustment valve allows pressure to be provided from the pressure source to the one or more secondary valves when the second indication exceeds the first indication, such that an equal amount of fluid flow occurs with respect to each of those secondary valves that is reduced in comparison with the fluid flow to any other secondary valves that are not connected to the adjustment valve.
REFERENCES:
patent: 4693272 (1987-09-01), Wilke
patent: 5715865 (1998-02-01), Wilke
patent: 5791142 (1998-08-01), Layne et al.
patent: 5890362 (1999-04-01), Wilke
patent: 5950429 (1999-09-01), Hamkins
patent: 6318079 (2001-11-01), Barber
BOBCAT 322 D-Series Compact Excavator Brochure, Bobcat Company, West Fargo, ND.
Haas George E.
HUSCO International Inc.
Leslie Michael
Look Edward K.
Quarles & Brady LLP
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