Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Reexamination Certificate
2003-06-23
2009-06-23
King, Bradley T (Department: 3657)
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
C188S356000, C188S357000
Reexamination Certificate
active
07549711
ABSTRACT:
A vacuum pressure booster has a booster shell; a booster piston; a valve cylinder including: a valve piston; an input rod; a control valve; and an input return spring, and the control valve including: an annular vacuum pressure introducing valve seat; an atmosphere introducing valve seat; a valve body including: an annular attaching bead portion; an expansion cylinder portion; and an annular valve portion; and a valve spring, wherein the attaching bead portion is tightly held by a pair of cylindrical holding portions formed in a pair of valve holders attached to the valve cylinder, and the diameter of the holding portion is smaller than the inner diameter of the valve cylinder.
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Greenblum & Bernstein P.L.C.
King Bradley T
Nissin Kogyo Co. Ltd.
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