Patent ID: 11913301
Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC E  F | IPC E  F

Claim 0:
1. A bellows assembly for a downhole tool, the bellows assembly comprising:
a first seal ring;
a second seal ring; and
a bellows positioned at least partially between the first and second seal rings, wherein the first seal ring, the second seal ring, and the bellows are integral with one another such that the bellows assembly is monolithic, wherein the bellows is configured to expand and retract, wherein the bellows is annular and has a diameter that varies over a length of the bellows, and wherein the bellows is shaped as a wave form along the length, the wave form including:
an inner curved portion;
an outer curved portion; and
an intermediate portion coupling the inner and outer curved portions;
the inner and outer curved portions are made from a shape-memory alloy; and
the intermediate portion is made from a non-shape-memory alloy.