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US 12,117,077 B2Granted
Machine to recover a cable
AssigneeTesmec S.P.A.
InventorsAlberto Oscar, Fabrizio Parodi, Roberto Pedrocchi
Life of this patent
Estimating the term…
Abstract
Machine to recover a cable, comprising at least one hydraulic pump with variable cubic capacity, provided with a system to adjust the cubic capacity, driven by a servo controller, and at least one hydraulic motor fed by said hydraulic pump by means of at least one pipe to deliver a fluid and at least one pipe to return the fluid.
Claims10
A machine to recover a cable, comprising:
- at least one hydraulic pump with variable cubic capacity, provided with a system configured to adjust the cubic capacity, driven by a servo controller, and at least one hydraulic motor fed by said hydraulic pump by means of at least one pipe to deliver a fluid and at least one pipe to return the fluid, said recovery machine being characterized in that it comprises a device to adjust the pressure of the fluid provided with at least one piloted proportional valve connected to said servo controller by means of a pipe to pilot the servo controller and provided with at least one maximum pressure proportional valve connected to a pipe connected to the hydraulic pump and in which pressurized fluid flows, said piloted proportional valve being connected to a pipe to discharge the fluid from said adjustment device and being able to commutate and put said pilot pipe into communication with said discharge pipe when the pressure of the fluid detected in at least one of either the delivery pipe or the return pipe of the hydraulic pump exceeds a set threshold pressure.
Dependencies are inferred from the claim text.