IP Library Granted Patent US 11,492,733
Granted Patent B2
US 11,492,733 · App. 16/798,023 · Granted Nov 8, 2022

Weave control grid

Inventor: Michael G. McCaffrey (Windsor, CT)
Assignee: RAYTHEON TECHNOLOGIES CORPORATION
D03D23/00D03D41/004D03D49/02D03D41/007
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Quick Facts
Patent No.
US 11,492,733
App. No.
16/798,023
Granted
Nov 8, 2022
Kind
B2
Abstract

Disclosed is a weaving method including placing a first section of a fill fiber between warp fibers, forming a pick, moving a base to reposition the warp fibers, and placing a second section of the fill fiber between the warp fibers to form a woven structure, wherein at least a portion of the warp fibers are introduced to the woven structure using a weave control grid. Also disclosed is a weaving assembly including a base, a base positional controller, a weave control grid, warp fiber arms, a warp fiber arm positional controller and a fill fiber wand.

Claims (37)

1. A weaving method comprising

placing a first section of a fill fiber between warp fibers,

forming a pick,

moving a base to reposition the warp fibers, and

placing a second section of the fill fiber between the warp fibers to form a woven structure,

wherein at least a portion of the warp fibers are introduced to the woven structure using a weave control grid;

wherein the weave control grid is slidably located below the fill fiber;

wherein the weave control grid has an open central section and a plurality of warp fiber openings surrounding the open central section, the plurality of warp fiber openings including openings for warp fibers to be added during changes in contour or size of the woven structure.

2. The weaving method of claim 1 , wherein at least a portion of the warp fibers are secured to the base.

3. The weaving method of claim 1 , wherein the weave control grid is affixed to the base.

4. The weaving method of claim 1 , wherein the weave control grid is modular to permit changes to the size and shape of the open central section to accommodate changes in the size and shape of the evolving woven structure.

5. A weaving method comprising

forming a first pick,

repositioning warp fibers by moving warp fiber arms relative to a fill fiber wand, or repositioning warp fibers by moving the base relative to the fill fiber wand, or both and

forming a second pick after repositioning warp fibers to produce a woven structure,

wherein at least a portion of the warp fibers extend from one of the warp fiber arms to the base and at least a portion of the warp fibers are introduced to the woven structure using a weave control grid;

wherein the weave control grid is slidably located below the fill fiber wand;

wherein the weave control grid has an open central section and a plurality of warp fiber openings surrounding the open central section, the plurality of warp fiber openings including openings for warp fibers to be added during changes in contour or size of the woven structure.

6. The weaving method of claim 5 , further comprising repositioning the weave control grid relative to the fill fiber wand.

7. The weaving method of claim 5 , wherein warp fibers are positioned by the weave control grid prior to forming the first pick or second pick.

8. The weaving method of claim 5 , wherein the weave control grid is modular to permit changes to the size and shape of the open central section to accommodate changes in the size and shape of the evolving woven structure.

9. A weaving assembly comprising

a base,

a base positional controller,

a weave control grid,

warp fiber arms,

a warp fiber arm positional controller and

a fill fiber wand;

wherein the weave control grid is slidably located below the fill fiber wand;

wherein the weave control grid has an open central section and a plurality of warp fiber openings surrounding the open central section, the plurality of warp fiber openings including openings for warp fibers to be added during changes in contour or size of a woven structure.

10. The weaving assembly of claim 9 , further comprising a holding station.

11. The weaving assembly of claim 10 , wherein the holding station is a secondary weave control grid.

12. The weaving assembly of claim 9 , wherein the weave control grid is modular to permit changes to the size and shape of the open central section to accommodate changes in the size and shape of the evolving woven structure.

13. The weaving assembly of claim 9 , wherein the weave control grid location is controlled by a positional controller.

14. The weaving assembly of claim 9 , wherein the weave control grid is modular.

15. The weaving assembly of claim 9 , wherein the weave control grid has openings with variable spacing between openings.

16. The weaving assembly of claim 9 , further comprising additional weave control grids.

Assignments (3)
CHANGE OF NAME Recorded Jul 27, 2023
From: RAYTHEON TECHNOLOGIES CORPORATION
To: RTX CORPORATION
Reel/Frame 064714/0001 →
CHANGE OF NAME Recorded Aug 5, 2021
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 057144/0389 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 3, 2020
From: MCCAFFREY, MICHAEL G.
To: UNITED TECHNOLOGIES CORPORATION
Reel/Frame 052078/0343 →
Continuity (1)
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