Surge attenuating devices

Claim 1

A FLUID LINE SURGE COMPRISING A HOLLOW FLUID TIGHT HOUSING HAVING AN OPENING THEREIN, A COMPRESSED CONVOLUTED ELASTOMER BELLOWS CLOSED AT ONE END, SECURED TO THE HOUSING ACROSS THE HOUSING OPENING AT ITS OTHER END AND DISPOSED WITHIN THE HOUSING TO FORM A FLUID RETAINING CHAMBER BETWEEN THE ELASTOMER BELLOWS AND THE INTERIOR OF THE HOUSING, SUPPORT MEANS COMPRISING A SERIES OF FLAT RING SHAPED MEMBERS DISPOSED WITHIN THE INTERIOR OF THE BELLOWS CONVOLUTIONS, A CONTINUOUS RIGID DOME SHAPED MEMBER CARRIED BY THE CLOSED PORTION OF THE ELASTOMER BELLOWS AND OF A SIZE GREATER THAN THE INSIDE DIAMETER OF THE SAID BELLOWS, A QUANTITY OF FLUID AROUND THE ELASTOMER BELLOWS WITHIN THE FLUID CHAMBER, A QUANTITY OF GAS UNDER PRESSURE BETWEEN THE FLUID IN THE CHAMBER AND THE FLUID TIGHT HOUSING TO MAINTAIN THE ELASTOMER BELLOWS UNDER COMPRESSION AT ALL TIMES, AND MEANS TO CONNECT THE INTERIOR OF THE ELASTOMER BELLOWS TO THE FLUID IN THE LINE.