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Hydraulic Brake Mechanism

  • US 20130180815A1
  • Filed: 01/16/2012
  • Published: 07/18/2013
  • Est. Priority Date: 01/16/2012
  • Status: Active Grant
First Claim
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1. A hydraulic brake mechanism mountable to a handlebar, the brake mechanism comprising:

  • a housing mountable to the handlebar; and

    a master cylinder assembly disposed within the housing, the master cylinder assembly including;

    a fluid chamber, comprising;

    a first chamber portion having a first diameter,a second chamber portion having a second diameter, the first diameter greater than the second diameter, anda transition region between the first and second chamber portions;

    a piston assembly, comprising;

    a piston slidably disposed within the fluid chamber,a first seal configured to sealingly engage between the first chamber portion and the piston, anda second seal configured to sealingly engage between the second chamber portion and the piston;

    an outlet port extending from the fluid chamber from at least one of the transition region, the first chamber portion and a proximate portion of the second chamber portion; and

    an actuator operatively connected to the housing and configured to slidably displace the piston assembly in the fluid chamber.

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