Brakes – Elements – Brake wheels
Patent
1987-02-13
1989-05-16
Halvosa, George E. A.
Brakes
Elements
Brake wheels
188264R, 192113A, F16D 6510, F16D 65827
Patent
active
048301507
ABSTRACT:
An elongated generally frusto-conical strip having spaced-apart fins formed thereon is adapted for installation within the brake drum of a heavy duty truck for creating a rush of cooling, drying and cleansing air across the braking surface of the drum in response to rotation of the drum. The strip is installed against the interior surface of the drum exterior wall adjacent the outer periphery thereof and is secured in place by the drum mounting studs or other threaded fasteners inserted through strip mounting holes in radially inward extensions of the strip upon alignment of those holes with the drum mounting holes. An improved brake drum for heavy duty trucks has cooling, drying and cleaning fins integrally formed in the interior surface of a frusto-conical shaped outer portion of the exterior wall of the drum with the fins arranged in spaced relation from the machined braking surface to protect them from contact with the brake shoe.
REFERENCES:
patent: 1750673 (1930-03-01), La Brie
patent: 1828972 (1931-10-01), La Brie
patent: 1847319 (1932-03-01), Wentworth
patent: 1912789 (1933-06-01), Norton
patent: 1966169 (1934-07-01), Forbes
patent: 2393032 (1946-01-01), Eksergian
patent: 2940794 (1960-06-01), Murphy et al.
patent: 3023858 (1962-03-01), Yocom
patent: 3042452 (1962-07-01), Bly et al.
patent: 3127959 (1964-04-01), Wengrowski
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