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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-5738741-A, on 14 April 1998. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000003224

Pre-fabricated vacuum bag and vacuum bag process to externally reinforce structural members with advanced composites

Published
Permanent URL
Classification
Lifting, Positioning & Manipulation › Vacuum Lifting
Original source
US-5738741-A, the United States Patent and Trademark Office, 14 April 1998
Document SHA-256
09cbeecd285e26afb7786bea5a87300eecb32ae2a278fb9286ddc858651de952

A structural member is reinforced by applying an adhesive material between a reinforcement surface of the structural member and an adhesion surface of a support plate, positioning a vacuum assembly adjacent to an exposed surface of said support plate so as to create an inner space between an exterior surface of said vacuum assembly and said reinforcement surface, and creating a partial vacuum in said inner space so as to force said vacuum assembly and said plate towards said reinforcement surface. A prefabricated vacuum assembly is a vacuum assembly comprising a flexible porous film, a flexible non-porous film, and a flexible sheet of breather material positioned between said porous film and said non-porous film.

Sheet 1
Sheet 1
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Abstract

A structural member is reinforced by applying an adhesive material between a reinforcement surface of the structural member and an adhesion surface of a support plate, positioning a vacuum assembly adjacent to an exposed surface of said support plate so as to create an inner space between an exterior surface of said vacuum assembly and said reinforcement surface, and creating a partial vacuum in said inner space so as to force said vacuum assembly and said plate towards said reinforcement surface. A prefabricated vacuum assembly is a vacuum assembly comprising a flexible porous film, a flexible non-porous film, and a flexible sheet of breather material positioned between said porous film and said non-porous film.

1. Drawings

[0001]Sheet 1.

[0002]Sheet 2.

Publication information

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Citation

OpenTechnical Publication OT-2026-000003224, “Pre-fabricated vacuum bag and vacuum bag process to externally reinforce structural members with advanced composites,” published September 15, 2026 at 19:51:55 UTC, https://opentechnical.org/p/OT-2026-000003224.

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