How is it possible that office chair cylinders don’t leak?

Question

How is it possible that gas cylinders (think of office chairs) with moving parts do not leak out over time?

In: Technology

Answer 1

They do eventually. Gas springs have been used for years in construction, automotive, medical, aerospace, and many other industries. They’ve been engineered to be reliable and long lasting but will wear out eventually. Office chairs tend to be replaced when they lose function, but you may be more likely to see a failed gas spring in an automobile hatchback that doesn’t lift its own weight