US 11,111,948 B2Granted

Aircraft assembly

AssigneeSafran Landing Systems UK LTD

InventorMatthew Hilliard

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Abstract

An aircraft assembly having a titanium rod comprising a first threaded portion, and a titanium nut comprising a second threaded portion conforming with the first threaded portion for mating engagement with it. One of the first and second threaded portions defines a male thread and the other one of the first and second threaded portions defines a female thread such that the nut can be wound in threading engagement along the rod. A threaded insert formed from a first metal of different hardness in comparison to titanium is coupled to the rod or the nut to define the first threaded portion or the second threaded portion respectively such that one of the first and second threaded portions is formed from titanium and the other one of the first and second threaded portions is formed from the first metal.

Claims12

Dependent claims

An aircraft assembly comprising:

a titanium rod comprising a first threaded portion;
a titanium nut comprising a second threaded portion conforming with the first threaded portion for mating engagement with the first threaded portion, wherein one of the first threaded portion and the second threaded portion defines a male thread and the other one of the first threaded portion and the second threaded portion defines a female thread such that the nut can be wound in threading engagement along the rod;
and
a threaded insert formed from a first metal of different hardness in comparison to titanium, the threaded insert being coupled to the rod or the nut to define the first threaded portion or the second threaded portion respectively such that one of the first threaded portion and the second threaded portion is formed from titanium and the other one of the first threaded portion and the second threaded portion is formed from the first metal;
wherein the rod defines a bore, the first threaded portion defines the female threaded portion within the bore and the nut is a gland nut defining the male threaded portion, wherein the titanium rod comprises an outer cylinder of an aircraft landing gear shock absorbing strut.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/392,721Filed 24 Apr 2019
Priority: EP 1816926425 Apr 2018
Published: US 2019/0331156 A131 Oct 2019
Granted: 7 Sep 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

F16B 33/008
Features common to bolt and nut: corrosion preventing means
F16B 33/02
Features common to bolt and nut: shape of thread; Special thread-forms
B21H 3/02
Making helical bodies or bodies having parts of helical shape: external screw-threads ; Making dies for thread rolling
B64C 25/36
Wheeled type, e.g. multi-wheeled bogies: arrangements or adaptations of wheels, tyres or axles in general

Family

US 2019/0331156 A1Pre-grant publication · published 31 Oct 2019
US 11,111,948 B2This patent

From the US filing history. Foreign family members aren’t listed.

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