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US 12,434,846 B2Granted
Bartack stitched pneumatic deicer boots
AssigneeGoodrich Corporation
InventorsAnvith BG Gopinath Gowda, Shyam Kumar Dattatri, Rhushikesh Patil
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Abstract
The present disclosure provides for pneumatic deicer boot assemblies, and related methods of fabrication and use. More particularly, the present disclosure provides for bartack stitched pneumatic deicer boot assemblies for aircraft or the like, with the bartack stitched pneumatic deicer boot assemblies having an inflatable carcass formed by two layers (e.g., a stretchable layer and a non-stretchable layer) stitched together using bartack stitches.
Claims16
A pneumatic deicer boot assembly comprising:
- fabric layers consisting of:
- a stretchable layer formed of a stretchable fabric;
- and
- a non-stretchable layer formed of a non-stretchable fabric,
- wherein the stretchable layer and the non-stretchable layer are stitched together by stitches consisting of bartack stitches,
- wherein:
- each one of the bartack stitches is defined by a zig-zag stitch A and a straight stitch line B within the zig-zig stitch;
- and
- wherein the bartack stitches are stitched in a pattern consisting of a parallel line pattern, such that the bartack stitches define airflow spacings between adjacent ones of the bartack stitches;
- wherein:
- the stretchable layer is configured to expand from a deflated position to an inflated position via introduction of air to the airflow spacings to create expanded air tubes, wherein the expanded air tubes, end to end, have a same cross-sectional shape as each other and extend parallel with each other,
- each one of the expanded air tubes is positioned between adjacent ones of the bartack stitches and between the stretchable layer and the non-stretchable layer.
9 more elements
A method for fabricating a pneumatic deicer boot comprising:
- providing fabric layers consisting of a stretchable layer formed of a stretchable fabric and a non-stretchable layer formed of a non-stretchable fabric,
- stitching the stretchable layer and the non-stretchable layer together by stitches consisting of bartack stitches,
- wherein:
- each one of the bartack stitches is defined by a zig-zag stitch A and a straight stitch line B within the zig-zig stitch;
- and
- the bartack stitches are stitched in a pattern consisting of a parallel line pattern, such that bartack stitches define airflow spacings between adjacent ones of the bartack stitches;
- and
- introducing air to the airflow spacings to expand the stretchable layer from a deflated position to an inflated position to create a plurality of expanded air tubes, wherein the expanded air tubes, end to end, have a same cross-sectional shape as each other and extend parallel with each other,
- each one of the expanded air tubes is positioned between adjacent ones of the bartack stitches and between the stretchable layer and the non-stretchable layer.
6 more elements
Dependencies are inferred from the claim text.