Spring-loaded secondary seal for floating-roof storage tank

Details Spring-loaded secondary seal for floating-roof storage tank Spring-loaded secondary seal for floating-roof storage tank

2006-05-16

2006-05-16

Nguyen, Kien (Department: 3712)

Receptacles

Closures

Floating closure

C220S222000

Reexamination Certificate

active

07044322

ABSTRACT:
A low-profile secondary seal for floating-roof storage tanks has a tip seal that includes a series of segmental adapter plates connected to the shoe plates. A tip seal element is mounted on the adapter plates. A fabric extends between the tip seal and the floating roof. A pusher is hinged to the floating roof, and includes a pusher bar with two ends that are disposed in a sliding arrangement against the adapter plates. A spring is connected to the pusher at an inclined angle, providing a mechanical advantage as the spring biases the pusher and pusher bar outwardly against the plates, pressing the tip seal against the tank shell.

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International Search Report on International (PCT) Application No. PCT/US 03/39790 dated Jun. 3, 2004.

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