Multi-state bladder for manufacture of composite material

Patent metadata

Field	Value
Publication number	US-10059041-B2
Application number	US-201514822247-A
Country	US
Kind code	B2
Filing date	Aug 10, 2015
Priority date	Aug 10, 2015
Publication date	Aug 28, 2018
Grant date	Aug 28, 2018

Abstract

Within examples, methods and systems for a multi-state bladder or elastomeric apparatus for manufacture of composite material are provided. The elastomeric apparatus includes a housing having a flexible surface state and a rigid surface state, a rod within the housing extending along a length of the housing, and a plurality of components mounted to the rod, such that in an engaged position of the rod the plurality of components cause the housing to have the rigid surface state, and in a disengaged position of the rod the plurality of components enable the housing to have the flexible surface state.

First claim

What is claimed is:

1. An elastomeric apparatus for use in manufacture of a composite component, comprising:
an elastomer housing having a flexible surface state and a rigid surface state;
a plurality of pairs of surface components provided on opposing internal surfaces of the elastomer housing, wherein a pair of surface components comprises a first surface component provided on a first internal surface of the elastomer housing and a second surface component provided on a second internal surface of the elastomer housing that is opposite the first internal surface;
a rod within the elastomer housing extending along a length of the elastomer housing; and
a plurality of components mounted to the rod, such that in an engaged position of the rod the plurality of components cause the elastomer housing to have the rigid surface state by the plurality of components being aligned with respective pairs of the plurality of pairs of surface components, and wherein in a disengaged position of the rod the plurality of components enable the elastomer housing to have the flexible surface state.

2. The elastomeric apparatus of claim 1 , wherein the rod is configured to transition between the engaged position and the disengaged position through a rotational actuation.

3. The elastomeric apparatus of claim 1 , wherein the rod is configured to transition between the engaged position and the disengaged position through a linear actuation.

4. The elastomeric apparatus of claim 1 , wherein the rod extends along a center of the elastomer housing and couples to walls of the elastomer housing via one or more links.

5. The elastomeric apparatus of claim 1 , wherein the plurality of components are mounted to the rod spaced apart along a length of the rod.

6. The elastomeric apparatus of claim 1 , wherein the plurality of components comprise an upper component for contact with the first surface component provided on the first internal surface of the elastomer housing and a lower component for contact with the second surface component provided on the second internal surface of the elastomer housing, based on the rod being in the engaged position.

7. The elastomeric apparatus of claim 1 , further comprising:
a plurality of spaces between the plurality of pairs of surface components, and
wherein in a disengaged position of the rod the plurality of components are aligned with respective spaces of the plurality of spaces to cause the housing to have the flexible surface state.

8. The elastomeric apparatus of claim 1 , wherein the rod is configured to transition between the engaged position and the disengaged position through a bi-directional linear actuation causing the plurality of components to be aligned with respective pairs of the plurality of pairs of surface components through actuation in a first direction and to be aligned with respective spaces of the plurality of spaces through actuation in a second direction.

9. An elastomeric apparatus for use in manufacture of a composite component, comprising:
an elastomer housing having a flexible surface state and a rigid surface state;
a plurality of pairs of surface components provided on opposing internal surfaces of the elastomer housing, wherein a pair of surface components comprises a first surface component provided on a first internal surface of the elastomer housing and a second surface component provided on a second internal surface of the elastomer housing that opposite from the first internal surface;
a plurality of spaces between the plurality of pairs of surface components;
a rod within the elastomer housing extending along a length of the elastomer housing; and
a plurality of components mounted to the rod, such that in an engaged position of the rod the plurality of components are aligned with respective pairs of the plurality of pairs of surface components to cause the elastomer housing to have the rigid surface state, and wherein in a disengaged position of the rod the plurality of components are aligned with respective spaces of the plurality of spaces to cause the elastomer housing to have the flexible surface state.

10. A method for altering a surface rigidity of an elastomeric apparatus, comprising:
providing an elastomer housing of the elastomeric apparatus having a first surface state and a second surface state, wherein the elastomer housing has a rod within the elastomer housing extending along a length of the elastomer housing and a plurality of components mounted to the rod, and wherein the elastomer housing has a plurality of pairs of surface components provided on opposing internal surfaces of the elastomer housing, wherein a pair of surface components comprises a first surface component provided on a first internal surface of the elastomer housing and a second surface component provided on a second internal surface of the elastomer housing that is opposite the first internal surface;
actuating the rod in a first direction to change a surface rigidity state of the elastomer housing, such that the elastomer housing has the first surface state due to the plurality of components being aligned with respective pairs of the plurality of pairs of surface components; and
actuating the rod in a second direction to change the surface rigidity state of the elastomer housing, such that the elastomer housing has the second surface state.

11. The method of claim 10 , wherein the first surface state is a rigid surface state, and the second surface state is a flexible surface state.

12. The method of claim 10 , wherein actuating the rod comprises actuating the rod through a rotational actuation.

13. The method of claim 10 , wherein actuating the rod comprises actuating the rod through a linear actuation.

14. The method of claim 10 , further comprising:
placing the elastomeric apparatus into an internal cavity of a mandrel;
actuating the rod in the first direction to cause the surface rigidity state of the elastomer housing to be a rigid surface state;
applying a composite material on the mandrel; and
actuating the rod in the second direction to cause the surface rigidity state of the elastomer housing to return to a flexible surface state.

Assignees

• Boeing Co

Inventors

• Heath Edward
• Modin Andrew Elmer
• Shaw Paul D
• Suriyaarachchi Raviendra

Classifications

• B29L2022/00

  Hollow articles (tubular articles B29L2023/00; pneumatic tyres B29L2030/00) · CPC title

• B29C33/485 Primary

  cores or mandrels (collapsible mandrels for shaping tube ends B29C57/02; collapsible mandrels for winding and joining B29C53/824) · CPC title

• B29C33/50

  elastic {or flexible (for isostatic pressing B29C43/3642)} · CPC title

• B29C70/446

  Moulding structures having an axis of symmetry or at least one channel, e.g. tubular structures, frames · CPC title

• B29K2105/08

  of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns · CPC title