Struts and methods utilizing a compression collar

Patent metadata

Field	Value
Publication number	US-2016348370-A1
Application number	US-201615232381-A
Country	US
Kind code	A1
Filing date	Aug 9, 2016
Priority date	Apr 8, 2014
Publication date	Dec 1, 2016
Grant date	—

Abstract

Composite tube assemblies comprising a composite tube comprising a distal end having a first conical section and a second conical section, wherein a distal end of the first conical section is in contact with a proximal end of the second conical section having the same outer diameter as the distal end of the first conical section, wherein a proximal end of the first conical section and a distal end of the second conical section have a smaller outer diameter than the distal end of the first conical section, a locking ring disposed around the first conical section, an end fitting disposed around the second conical section, wherein the end fitting is coupled to the locking ring, and a retaining ring circumferentially disposed around the locking ring are disclosed.

First claim

What is claimed is:

1 . A method of manufacture, comprising:
forming a composite tube including a distal end comprising a first conical section and a second conical section; disposing an end fitting around the second conical section of the composite tube and internal to the composite tube; disposing a locking ring around the first conical section of the composite tube; and coupling the locking ring to the end fitting.

2 . The method of claim 1 , further including disposing a retaining ring around the locking ring.

3 . The method of claim 1 , wherein the forming the composite tube further includes co-molding a metallic insert with the composite tube.

4 . The method of claim 1 , further including bonding a metallic insert to the composite tube.

5 . The method of claim 1 , wherein a distal end of the first conical section is in contact with a proximal end of the second conical section having the same outer diameter as the distal end of the first conical section.

6 . The method of claim 1 , wherein the locking ring is coupled to the end fitting with retention bolts.

7 . The method of claim 1 , wherein the locking ring comprises a plurality of pieces.

8 . A method of manufacture, comprising:
disposing a retaining ring around a composite tube,
wherein a distal end of the composite tube comprises a first conical section and a second conical section, wherein a distal end of the first conical section is in contact with a proximal end of the second conical section having the same outer diameter as the distal end of the first conical section,
wherein a proximal end of the first conical section and a distal end of the second conical section have a smaller outer diameter than the distal end of the first conical section;
disposing an end fitting around the second conical section; disposing a locking ring around the first conical section of the composite tube so the retaining ring circumferentially surrounds the locking ring disposed around the first conical section; and coupling the locking ring to the end fitting.

9 . The method of claim 8 , wherein the locking ring is coupled to the end fitting with retention bolts.

10 . The method of claim 8 , wherein the composite tube comprises a metallic insert.

11 . The method of claim 10 , further including co-molding the metallic insert with the composite tube.

12 . The method of claim 10 , further including bonding the metallic insert to the composite tube.

13 . The method of claim 8 , wherein the locking ring comprises a plurality of pieces.

14 . The method of claim 8 , further including treating a surface of the first conical section and the second conical section with a nanocoating.

Assignees

• Goodrich Corp

Inventors

• Ganis Rony Giovanni

Classifications

• F16C7/026

  made of fibre reinforced resin · CPC title

• F16B7/02 Primary

  with conical parts · CPC title

• F16L21/08

  with additional locking means (F16L21/06 takes precedence; couplings of the quick-acting type F16L37/00) · CPC title

• E04C3/36 Primary

  of materials not covered by groups E04C3/32 or E04C3/34; of a combination of two or more materials · CPC title

• F16C3/026

  Shafts made of fibre reinforced resin · CPC title