Brakes – Elements – Brake wheels
Reexamination Certificate
2005-05-03
2005-05-03
Graham, Matthew C. (Department: 3683)
Brakes
Elements
Brake wheels
C106S036000, C252S398000
Reexamination Certificate
active
06886668
ABSTRACT:
Antioxidant coating compositions containing 10-75 wt % H2O, 20-65 wt % H3PO4, 0.1-20 wt % alkali metal mono-, di-, or tri-basic phosphate, 0-2 wt % hydrated boron oxide, 0-18 wt % KH2PO4, 3-10 wt % of a transition metal oxide, and 0-20 wt % hydrated manganese phosphate, 0-25 wt % Al(H2PO4)3, and 0-10 wt % Zn3(PO4)2, provided that at least one of Al(H2PO4)3, Zn3(PO4)2, and hydrated manganese phosphate is present. Also, brake discs made from carbon composite articles having their surface treated with certain antioxidant coatings. During a manufacturing process, carbon matrix15of brake disc11is covered on its outer and inner edges with antioxidant layers19and portions of the working surface of brake disc11may also be covered with antioxidant layers13, potentially decreasing the fitness of the brake disc for service. In accordance with this invention, brake disc12is manufactured from brake disc11by the removal from its working surface of antioxidant layers13.
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Booker Laurie A.
Koucouthakis Manuel G.
Shreve Michelle L.
Spross Michael N.
Thompson Ken A.
Graham Matthew C.
Honeywell International , Inc.
Palguta Larry J.
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