Modular brakes with replaceable friction pads
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United States of America Patent
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Feb 9, 1999
Grant Date -
N/A
app pub date -
Feb 19, 1997
filing date -
Feb 19, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
Generally trapezoid-shaped friction material pads can be used in conjunction with piston assemblies having torque collars with upstanding torque posts and with torque collars that have torque legs with inclined inner faces or shoulders to embrace side faces or shoulders of the pads. A retainer clip cooperates with the torque legs to prevent unwanted radial movement of the pad. A back plate of the pad has one or more tabs projecting beyond a wider base of the pad for facilitating pad removal. Tabs on the pad for indicating that a worn friction pad is due for replacement are located beyond the wider base of the pad or within the friction material pad. The friction pads are adapted for installation on module bases which include air ports on side surfaces and are constructed for interconnection that provides for air transfer between adjacent modules via the air ports. A piston assembly for applying the friction pads in a braking operation includes an indexing mechanism to align and secure the friction pads to the piston assembly.
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