Brakes – Elements – Cooling and lubricating
Patent
1995-01-23
1995-12-12
Mitchell, David M.
Brakes
Elements
Cooling and lubricating
188218XL, F16D 6512
Patent
active
054741610
ABSTRACT:
A rotor for a disc brake assembly includes a centrally disposed hub and at least one friction surface disposed annularly about the hub, the friction surface including a single continuous spiral groove disposed between the hub and an outer radial edge of the rotor, the single continuous spiral groove including a first portion wherein the groove is disposed radially side-by-side relative to itself and concentrically about the hub with each adjacent segment of the first portion of the groove being spaced from itself by a first predetermined distance, the single continuous spiral groove also including a second portion wherein the groove is disposed radially in side-by-side relation relative to itself and concentrically about the hub with each adjacent segment of the second portion of the groove being spaced from itself by a second predetermined distance which is different from the first predetermined distance to improve braking of the rotor.
REFERENCES:
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patent: 2856050 (1958-10-01), Mathews
patent: 3301356 (1965-02-01), Pompa
patent: 3603435 (1971-09-01), Buzzard et al.
patent: 3759066 (1973-09-01), Portnoy
patent: 4156479 (1979-05-01), Kawamura
patent: 4811822 (1989-03-01), Estaque
patent: 5137123 (1992-08-01), Setogawa et al.
Eaton, III Elton R.
Simmons Judy L.
Stringfellow George F.
Ford Motor Company
Malleck Joseph W.
May Roger L.
Mitchell David M.
Schwartz Chris
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