Motors: expansible chamber type – Three or more cylinders arranged in parallel radial or... – Radially disposed cylinders
Reexamination Certificate
2011-04-19
2011-04-19
Lazo, Thomas E (Department: 3745)
Motors: expansible chamber type
Three or more cylinders arranged in parallel radial or...
Radially disposed cylinders
C060S484000
Reexamination Certificate
active
07926410
ABSTRACT:
A hydraulic system for synchronized movement of multiple cylinders in a horizontal plane includes a bidirectional pump, a shuttle valve cross-connected between pump outlets, flow-control check valves, and control valves which combine to reduce the number of valves in the hydraulic circuit and to reduce total cost of components for the system. The shuttle valve of the hydraulic system provides fluid for resynchronizing extension and retraction of multiple cylinder assemblies without disconnection of lines, provides air removal without disconnection of lines, allows easy addition/refill of hydraulic fluid, and allows excellent control of the extendable cylinder assemblies.
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J.R. Automation Technologies, L.L.C.
Lazo Thomas E
Price Heneveld Cooper DeWitt & Litton LLP
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