Receptacles – Sidewall structure – Sidewall seam or joint
Patent
1990-03-22
1991-09-10
Marcus, Stephen
Receptacles
Sidewall structure
Sidewall seam or joint
220586, 220410, 220445, B65D 2518
Patent
active
050466380
ABSTRACT:
An improved chemical pressure vessel for storage, shipping and pressurized dispensing of fluid chemicals is formed with a seamless fluoropolymer inner liner permanently encapsulated within a metallic overpack. To protect the liner from the heat of welding during encapsulation of the overpack around the liner, the liner is formed with recessed indentation immediately adjacent the weld area. The indentation retains a sacrificial layer of fluoropolymer to ensure that the heat of welding will not affect the liner itself. In addition, the overpack is formed with a protective flange or "puddle plate" in the area of the weld to ensure that there is adequate isolation of the weld puddle from the fluoropolymer liner. The fact that the liner is seamless and permanently encapsulated within the overpack eliminates the need for periodic disassembly of the vessel for inspection of seams for possible leakage.
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Advertisement for FLUOROCLAD Systems Linings Chemical Processing, Oct. 1989, p. 110.
Declaration of Barry Rauworth dated Jul. 2, 1990.
Castellano S.
Fluoroware, Inc.
Marcus Stephen
LandOfFree
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