Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Inorganic compound
Reexamination Certificate
2006-01-11
2010-10-19
Caldarola, Glenn A (Department: 1797)
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Inorganic compound
C508S167000, C075S252000, C419S010000, C419S037000
Reexamination Certificate
active
07816307
ABSTRACT:
The invention relates to a novel self-lubricating solid material; to a method of preparing such a material from a powder mixture; to said powder mixture; and to mechanical parts made of said novel material. Said powder mixture comprises a powder of a metal alloy that is a precursor for the matrix of said material, particles of a first solid lubricant such as CeF3that are for insertion in said matrix without reacting with said metal alloy, and particles of a second solid lubricant such as WS2or MoS2for reacting with a component of said metal alloy during sintering of the powder to form a lubricating phase. Said material can be used for fabricating a bushing that is to receive a root of a variable-pitch vane of an airplane turbojet compressor.
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Braillard Frédéric
Foucher Christelle
Perruchaut Philippe
Caldarola Glenn A
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Oladapo Taiwo
SNECMA
SNECMA Services
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