- Patent Number:
12252,263
- Appl. No:
18/299158
- Application Filed:
April 12, 2023
- Abstract:
A rod assembly includes a tubular rod body formed from a composite material and a localized sleeve installed to the rod body. The sleeve is secured to the rod body by application of heat to the sleeve material. A bushing is located radially between the rod body and the sleeve. The bushing is configured to absorb thermal energy of the application of heat. A door and hold open rod assembly of an aircraft includes a door, and a hold open rod assembly secured to the door. The hold open rod assembly is configured to support the door in an opened position when the hold open rod is deployed. The hold open rod assembly includes a tubular rod body formed from a composite material, and a localized sleeve installed to the rod body. A bushing is located radially between the rod body and the sleeve.
- Inventors:
Hamilton Sundstrand Corporation (Charlotte, NC, US)
- Assignees:
HAMILTON SUNDSTRAND CORPORATION (Charlotte, NC, US)
- Claim:
1. A rod assembly comprising: a tubular rod body formed from a composite material; a localized sleeve installed to the rod body, the sleeve secured to the rod body by a shrink fit operation including the application of heat to the sleeve material; a bushing disposed radially between the rod body and the sleeve, the bushing configured to absorb thermal energy of the application of heat; and a body notch formed as a radially inward recess in the rod body in which the bushing is positioned.
- Claim:
2. The rod assembly of claim 1 , further comprising a radially outwardly extending bushing lip formed in the bushing to position the sleeve material relative to the bushing.
- Claim:
3. The rod assembly of claim 1 , further comprising a bushing split formed in the bushing to allow for installation of the bushing to the rod body.
- Claim:
4. The rod assembly of claim 1 , wherein the sleeve is formed from a polyolefin material.
- Claim:
5. The rod assembly of claim 1 , wherein the bushing is formed from a polyetheretherketone (PEEK) material.
- Claim:
6. A door and hold open rod assembly of an aircraft, comprising: the door; and a hold open rod assembly secured to the door, the hold open rod assembly configured to support the door in an opened position when the hold open rod is deployed, the hold open rod assembly, including: a tubular rod body formed from a composite material; a localized sleeve installed to the rod body, the sleeve secured to the rod body by a shrink fit operation including the application of heat to the sleeve material; and a bushing disposed radially between the rod body and the sleeve, the bushing configured to absorb thermal energy of the application of heat.
- Claim:
7. The assembly of claim 6 , further comprising a spring clip secured to the door to retain the hold open rod in a stowed position, the spring clip configured to retain the hold open rod at the localized sleeve.
- Claim:
8. The assembly of claim 6 , further comprising a rod hinge to retain the hold open rod to the door.
- Claim:
9. The assembly of claim 6 , further comprising a body notch formed as a radially inward recess in the rod body in which the bushing is positioned.
- Claim:
10. The assembly of claim 6 , further comprising a radially outwardly extending bushing lip formed in the bushing to position the sleeve material relative to the bushing.
- Claim:
11. The assembly of claim 6 , further comprising a bushing split formed in the bushing to allow for installation of the bushing to the rod body.
- Claim:
12. The assembly of claim 6 , wherein the sleeve is formed from a polyolefin material.
- Claim:
13. The assembly of claim 6 , wherein the bushing is formed from a polyetheretherketone (PEEK) material.
- Claim:
14. The assembly of claim 6 , wherein the door is a cowling of an engine assembly for the aircraft.
- Claim:
15. An engine assembly of an aircraft, comprising: an engine body; a cowling configured to at least partially enclose the engine body, the cowling movable between a closed position and an opened position; and a hold open rod assembly secured to the cowling, the hold open rod assembly configured to support the cowling in an opened position when the hold open rod is deployed, the hold open rod assembly, including: a tubular rod body formed from a composite material; a localized sleeve installed to the rod body, the sleeve secured to the rod body by a shrink fit operation including the application of heat to the sleeve material; and a bushing disposed radially between the rod body and the sleeve, the bushing configured to absorb thermal energy of the application of heat.
- Claim:
16. The engine assembly of claim 15 , further comprising a spring clip secured to the cowling to retain the hold open rod in a stowed position, the spring clip configured to retain the hold open rod at the localized sleeve.
- Claim:
17. The engine assembly of claim 15 , further comprising a body notch formed as a radially inward recess in the rod body in which the bushing is positioned.
- Claim:
18. The engine assembly of claim 15 , further comprising a radially outwardly extending bushing lip formed in the bushing to position the sleeve material relative to the bushing.
- Claim:
19. The engine assembly of claim 15 , further comprising a bushing split formed in the bushing to allow for installation of the bushing to the rod body.
- Patent References Cited:
3739435 June 1973 Baker
4135743 January 1979 Hughes
6688339 February 2004 Yamaguchi et al.
7563496 July 2009 Watson
2013/0175419 July 2013 Wheeler
2018/0057183 March 2018 Le Cadet
2018/0223572 August 2018 Artin
2019/0048629 February 2019 Dyer
103448257 December 2013
0172039 February 1986
2076489 December 1981
- Other References:
European Search Report for European Application No. 23211185.6; dated Mar. 21, 2024; 7 pages. cited by applicant
- Primary Examiner:
Abell, Tye William
- Attorney, Agent or Firm:
CANTOR COLBURN LLP
- Accession Number:
edspgr.12252263
Processing Request
No Comments.