PTC

Patent application number	Title	Published
PTC Patent applications
20090324345	ELONGATED VIBRATOR MADE IN SEVERAL DETACHABLE ELEMENTS ASSEMBLED WITH EACH OTHER THROUGH SECURED CONNECTIONS - A vibrator includes a tubular element including one or more sections, the upper end of which is provided with an element for suspension from a hoisting and/or guiding machine and the lower end of which is connected to an endpiece successively including a damper-isolator, a generator of vibrations (	12-31-2009
20090007559	SERVO-CONTROL SYSTEM FOR HYDRAULIC UNIT FEEDING HYDRAULIC FLUID TO A VIBRATOR - The servo-control system for hydraulic unit according to the invention comprises a pump driven by a motor feeding hydraulic fluid to a vibrator or vibrating system comprising eccentric weights driven in rotation by at least one hydraulic motor receiving said fluid. It also comprises adaptation means for continuous adaptation of the rotation speed of the motor of the hydraulic unit in relation to the energy actually consumed by the vibrator.	01-08-2009