Patent ID: 7493916

Claim:
A pressure vessel assembly for a pressurized fluid system, said pressure vessel assembly comprising: a hollow outer casing defining an interior cavity within said outer casing; at least one fluid-pressure accumulator disposed within said interior cavity in said outer casing; and at least one isolation device disposed between said at least one fluid-pressure accumulator and said outer casing, said at least one isolation device includes an isolator ring made of a substantially elastomeric material; said at least one fluid-pressure accumulator including an outer pressure shell and a separating member movable in said outer pressure shell; said outer pressure shell defining an enclosed fluid chamber between an inner peripheral surface of said outer pressure shell and said separating member; said enclosed fluid chamber being provided for containing a working fluid under pressure therein; said at least one isolation device further including an isolator ring support member supporting said isolator ring and a spring member disposed between said at least one closure member and said isolator ring support member for biasing said isolator ring toward said at least one fluid-pressure accumulator.