John A Malinowski

US Patent:

41302176, Dec 19, 1978

Filed:

Sep 27, 1977

Appl. No.:

5/837230

Inventors:

Richard E. Hills - Coraopolis PA
Frank R. Neely - Wexford PA
Derek K. Neely - Pittsburgh PA
John T. Malinowski - Hartstown PA

Assignee:

Pittsburgh-Des Moines Steel Company - Pittsburgh PA

International Classification:

F16J 1502
B65D 2534
B65D 8736

US Classification:

220226

Abstract:

A seal arrangement for a floating roof in a storage tank, wherein the roof is spaced at its outer periphery from the inner surface of the tank, thus defining a rim space, includes support members secured at one edge to the roof and extending angularly outwardly into close proximity with the tank wall, and yieldable material carried by the support members in a position to engage the tank wall and effect a seal between the roof and tank wall, said yieldable material having a predetermined shape, whereby engagement thereof with the tank wall covers a predetermined, varying area upon variations in the rim space to thus maintain acceptable contact pressure with the tank at different rim spaces between the roof and tank wall, while at the same time maintaining an effective seal.