发明授权
US4841603A Reclosable seams for fluid-tight applications 失效
用于流体密封应用的可重合的接缝

Reclosable seams for fluid-tight applications
摘要:
An interlocking structure and a method of testing wherein the structure includes spaced interlocked rib and groove members with a compartment therebetween exposed to one side of each of the interlocked ribs and grooves and the ribs and grooves submerged beneath water while the compartment is pressurized with air so that any leakage past the interlocked rib and grooves will be detected by bubbles rising through the water.
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