Brake drum

Details Brake drum Brake drum

2006-06-15

2010-12-14

Burch, Melody M (Department: 3657)

Brakes

Elements

Brake wheels

C188S073100

Reexamination Certificate

active

07849979

ABSTRACT:
A brake drum includes a generally cylindrical sidewall that is open at one end and at least partially closed by an endwall at its other end. The sidewall preferably has a thickness that vanes along its axial length and preferably is thickest at the end closest to the endwall. In one implementation, the outer surface of the sidewall is generally frustum shaped in cross section with a straight radially tapered outer wall. In another implementation, the outer surface of the sidewall is generally concave or sloped from the first end to a second end spaced from the endwall. In another implementation, the outer surface of the sidewall is generally convex.

REFERENCES:
patent: 1766216 (1930-06-01), Booth
patent: 1881002 (1932-10-01), Udale
patent: 1982900 (1934-12-01), Buckwalter
patent: 2016871 (1935-10-01), Nelson
patent: 2414156 (1947-01-01), Malthaner
patent: 2897925 (1959-08-01), Strohm
patent: 3487894 (1970-01-01), Szigeti
patent: 4955458 (1990-09-01), Shellhause
patent: 6376766 (2002-04-01), Bartholoma et al.
patent: 7216746 (2007-05-01), Yamamoto et al.
patent: 2006/0222280 (2006-10-01), Harada et al.
patent: 3411049 (1984-10-01), None
patent: WO 99/32798 (1999-07-01), None

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