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US 4,062,468 AGranted
Fuel storage tank insulating system
OwnerJohn P. Bongiovanniinventor
Life of this patent
Estimating the term…
Abstract
A fuel storage tank of welded steel plate design is insulated by first providing a structural layer of expanded steel mesh or lath welded to the exterior tank wall by welding washers, and then applying gobs of a cementitious mastic to hold foam heat insulating boards to discrete areas of the lath layer. An outer layer of fiberglass reinforced resin provides a durable yet pliable outer finish for the tank, and also imparts tensile strength to the resulting insulating structure.
Claims11
A system for insulating a cylindrical fuel storage tank or the like, said system comprising:
- a. an inner structural layer attached to the cylindrical wall of the tank said inner layer including a plurality of individual expanded metal lath sheets which are bonded to the existing exterior of the tank,
- b. an intermediate insulating layer attached to said inner layer, said insulating layer including a plurality of foam board sheets which are bonded to the expanded metal lath sheets with gobs of mastic material arranged in a pattern such that the gobs are spaced from one another horizontally and vertically, and
- c. an outer layer attached to said insulating layer, said outer layer including a resin impregnated cloth fiber reinforced coating bonded to said foam board sheets by said resin.
Dependencies are inferred from the claim text.