B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
20/15.22
B65D 88/46 (2006.01)
Patent
CA 1094283
Abstract of the Disclosure A novel peripheral seal for sealing a liquid storage tank of the type having welded, riveted, or bolted, cylindrical- ly shaped side walls includes a floatable pontoon, and a plurality of seal support arms successively and radially disposed about the pontoon periphery. Each support arm is pivotally connected to a pontoon side. A plurality of arcuately shaped primary seals span from one support arm to the next successive support arm and are biased radially outwardly to sealingly engage the riveted sidewalls. A fabric membrane opens from support arm to support arm and extends from a primary seal to the pontoon to form an annular cover. The support arm are interconnected by flexible connection means to provide stability. The flexible connection means also allows each support arm to move radially inwardly and outwardly, by itself, to a certain degree. For optimal sealing results, arcuately shaped secondary seals may be disposed below the primary seal on the support arms to effect a double seal.
312145
Altech Industries Inc.
Goudreau Gage & Associates
LandOfFree
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