Slit tube extendible members and methods for manufacturing same
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United States of America Patent
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Oct 17, 2023
Grant Date -
Sep 9, 2021
app pub date -
Feb 22, 2018
filing date -
Feb 24, 2017
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Extendible slit tube members and methods for manufacturing extendible slit tube members are provided. In one aspect, an extendible member (10) comprises a laminated shell (2) of plural fibre reinforced layers (P1-P5) constructed and arranged to be configurable between a coiled form and an extended form. In the extended form (12) the shell is resiliently biased in the form of an elongate tube having longitudinal edges (14) defining a slit (3) along its length and wherein the shell can be opened out at the slit to assume a flattened form in which it can be wound about an axis extending transversely to its longitudinal direction to assume its coiled form (11). In the region of one or both longitudinal edges (50), the amount of reinforcing fibre is less than in the region between the edge regions (51). In another aspect, a flexible cord (40) may be attached along the edge of a shell.
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International Classification(s)
- F16L:PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR ....
- B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....
- F16S:CONSTRUCTIONAL ELEMENTS IN GENERAL; STRUCTURES BUI....
- E04C:STRUCTURAL ELEMENTS; BUILDING MATERIALS
- B29L:INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RE....
- B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....
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