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US 12,157,805 B2Granted
Fire seals and methods of making same
AssigneeMeggitt Aerospace Limited
InventorsStuart Hastings Lee, Toby George Henry Reid, Steve Fackler
Life of this patent
Estimating the term…
Abstract
Rubber compounds with increased resistance to fire are disclosed. The rubber compounds are incorporated into fire seals and in particular into fire seals for aerospace applications. The advance rubber compounds are created by adding a powdered vitreous or glass material in combination with a fiber such as carbon fiber, with or without intumescent material to a base rubber compound and then curing.
Claims22
A fire seal cured from a fire seal mixture comprising:
- a base rubber compound comprising a silicone or fluorosilicone polymer that is between 50% and 95% of a total mass of the fire seal mixture;
- an additive that is a vitreous material that is between 2.5% and 50% of the total mass of the fire seal mixture or an intumescent material that is between 5% and 50% of the total mass of the fire seal mixture;
- and
- short fiber strands that are between 1% and 25% of the total mass of the fire seal mixture.
1 more element
A method of making a fire seal from a fire seal mixture comprising:
- adding a base rubber compound consisting of silicone or fluorosilicone polymer to the fire seal mixture such that the base rubber compound is between 50% and 95% of a total mass of the fire seal mixture;
- adding an additive to the fire seal mixture wherein the additive is a vitreous material that is between 2.5% and 50% of the total mass of the fire seal mixture or an intumescent material that is between 5% and 50% of the total mass of the fire seal mixture;
- adding short fiber strands to the fire seal mixture that are between 1% and 25% of the total mass of the fire seal mixture;
- and to create a second compound;
- and
- curing the fire seal mixture into the fire seal.
3 more elements
Dependencies are inferred from the claim text.