Patent · US Expired

Method of making a spring out of thermostructural composite material

US6231709A · kind A · utility

0Cited by

4References

11Claims

0Family size

Assignee

Societe Nationale d'Etude et de Construction de Moteurs d'Aviation - S.N.E.C.M.A · FR

Inventor

Jean-Pierre Maumus · Saint-Médard-en-Jalles, FR

Key dates

Filing date	Dec 21, 1998
Grant date	May 15, 2001
Priority date	—
Expiry date	Dec 21, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T156/1062
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A fiber preform is made from a fiber block by forming at least one cut in the block, so as to make a gap between two portions of the preform corresponding to segments of a spring that is to be made, and the preform is densified by a material for constituting the matrix of the thermostructural composite material. The gap between two portions of the preform is provided either by removing material, preferably after the preform has been consolidated, or else by forming a slot and then spacing apart the lips of the slot and holding the preform in the spaced-apart state.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.