Cleaning and liquid contact with solids – Processes – Hollow work – internal surface treatment
Patent
1985-11-25
1987-05-26
Metz, Andrew H.
Cleaning and liquid contact with solids
Processes
Hollow work, internal surface treatment
134 27, 285 41, 285 47, 285 48, 285 50, 285 55, 285226, 285227, 252387, 252390, B08B 900, B08B 3000, F16L 5300, F16L 1112
Patent
active
046683038
ABSTRACT:
A novel bellows expansion joint design and method of preventing stress corrosion cracking incorporates an internal cylindrical weir or sleeve which defines an inner flushing chamber adjacent the expansion bellows wherein connections are provided on the exterior wall of the expansion joint body to allow the admission of a chemical solution or treating fluid directly onto the inside surface of the bellows from an external connection to the expansion joint. In addition, a further connection is provided to a second flushing chamber surrounding the exterior of the bellows so that a similar solution may be admitted and allowed to overflow from an upper portion of the chamber.
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Dvorak Joseph J.
Exxon Research and Engineering Company
Metz Andrew H.
Wright William G.
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