Friction material configuration and method of manufacture for brake applications
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United States of America Patent
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Aug 29, 2006
Grant Date -
May 5, 2005
app pub date -
Oct 30, 2003
filing date -
Oct 30, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides a brake pad or shoe and method to manufacture the same. The brake pad or shoe includes a first friction material such as a non-asbestos organic material and a second friction material such a semi-metallic material. The friction materials are configured as discrete buttons or other suitable shapes and connected to a structural backing of the brake pad or shoe in a spaced-apart configuration. The first friction material may be located at an outboard location of the structural backing and the second friction material may be located at an inboard location. Use of the two friction materials provides superior performance compared to use of a single friction material. Configuring the friction material as discrete buttons makes the friction material fabrication process independent of the structural backing configuration, which reduces complexity and cost.
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