Silencer device for hydraulic jacks

Claim 1

A SILENCER DEVICE FOR JOINING TWO RIGID CONDUITS CARRYING FLUID UNDER VARIABLE PRESSURE COMPRISING A TUBULAR HOUSING HAVING AN APERTURE THEREIN INTERMEDIATE ITS ENDS ADAPTED TO BE JOINED TO ONE OF THE CONDUITS, A RIGID TUBE EXTENDING AXIALLY THROUGH SAID HOUSING AND HAVING ONE CLOSED END, THE OPEN END OF SAID TUBE BEING ADAPTED TO BE JOINED TO THE OTHER OF THE CONDUITS, THE INTERIOR SURFACE OF SAID TUBULAR HOUSING BEING SPACED FROM THE OUTER SURFACE OF SAID TUBE WITH RESILIENT SEAL RINGS SEALING THE OPPOSITE ENDS OF THE HOUSING AGAINST THE TUBE BUT PERMITTING AXIAL AND ROTATIONAL MOVEMENT OF THE TUBE WITH RELATION TO THE HOUSING, A SERIES OF CLOSELY SPACED PORTS IN SAID TUBE PROVIDING FLUID COMMUNICATION BETWEEN SAID HOUSING APERTURE AND THE INTERIOR OF SAID TUBE WHEREBY WITH SAID DEVICE CONNECTED BETWEEN SAID CONDUITS TRANSMISSION OF VIBRATION BETWEEN THE CONDUITS IS RETARDED WITH THE FREEDOM FOR ROTATIONAL MOVEMENT BETWEEN SAID TUBE AND HOUSING PERMITTING A ACCOMMODATION OF MISALIGNMENT OF SAID CONDUITS.