Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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B29C
SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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66/00
General aspects of processes or apparatus for joining preformed parts
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B29C66/50
General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
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B29C66/51
Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
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B29C66/53
Joining single elements to tubular articles, hollow articles or bars
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B29C66/536
Joining substantially flat single elements to hollow articles to form tubular articles
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B29C66/536

Heat Shrinkable Film Tube and Method for Manufacturing Hollow Composite Parts
20170136687 · 2017-05-18 ·

A film tube installed and sealed in a hollow composite part acts as an internal vacuum bag that eliminates the need for an internal mandrel to react compaction forces applied by autoclave pressure during curing of the part.

Stacked inflatable tubes and methods of forming stacked inflatable tubes for evacuation assemblies
12534210 · 2026-01-27 · ·

An inflatable stacked tube assembly may comprise a first panel and a second panel. The first panel may form a first portion of a top tube and a first portion of a bottom tube. The second panel may form a second portion of the top tube and a second portion of the bottom tube. A first seam tape may be bonded to a first top tube interior surface portion of the first panel and a second top tube interior surface portion of the second panel. The first seam tape may be located along a first fold formed by the first panel and along a second fold formed by the second panel.