System for sealing and repairing leaks in ruptured containers
AssigneeThe United States of America as represented by the Administrator of the Environmental Protection Agency
InventorsJohn J. Vrolyk, Robert W. Melvold
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Abstract
A system for sealing and repairing leaks in ruptured containers whereby an applicator including an open-celled sponge body is inserted into the rupture and the two interacting components of a binary fluid foam composition are mixed and injected into the sponge body, thereby expanding and forming a foam composite with the latter against the rupture to effectively seal and repair same upon curing of the foam in situ.
Claims5
A method of sealing and repairing a rupture in the wall of a container for storing material comprising the steps of:
- a. inserting an open-celled sponge body into the rupture so that the sponge body extends from either side of the container wall,
- b. injecting a curable plastic foam composition into the sponge body to expand the sponge body against the periphery of the rupture, and
- c. curing the foam in situ to form a foam composite with the sponge body for sealing the rupture.
Dependencies are inferred from the claim text.