Rail vehicle brake slack adjuster
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United States of America Patent
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-
Nov 13, 2012
Grant Date -
Dec 23, 2010
app pub date -
Feb 7, 2008
filing date -
Feb 7, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A rail vehicle brake slack adjuster comprises an axially movable, sleeve-shaped driver element (22) adapted to receive an axially applied braking force in a brake application direction, a spindle (16) axially movable within the driver element, an adjuster nut (34) in non-self-locking thread engagement with the spindle, clutch means between the driver element and the adjuster nut, and a barrel spring (30) biasing the spindle in the brake application direction. The adjuster has a combination of a first clutch (36) comprising a clutch surface on the driver element (22) directed in the brake application direction and a corresponding clutch surface on the adjuster nut (34) and a second clutch (38) comprising a clutch surface on the driver element (22) directed in the direction opposite to the brake application direction and a corresponding clutch surface on an adjuster nut sleeve (37). The adjuster nut sleeve (37) is axially movable on the adjuster nut (34).
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