Brakes – Internal-resistance motion retarder – Valve structure or location
Reexamination Certificate
2006-11-21
2006-11-21
Kramer, Devon (Department: 3683)
Brakes
Internal-resistance motion retarder
Valve structure or location
C137S533310
Reexamination Certificate
active
07137491
ABSTRACT:
A check valve assembly for a shock absorber includes a tapered valve seat and a polygonal check valve which includes a plurality of flat surfaces. Each pair of flat surfaces intersects at a linear engagement surface which slidably engages a cylindrical chamber. When the polygonal check valve is in an open position, fluid flows along the flat surfaces even though the linear engagement surfaces are essentially in contact with the cylindrical chamber. Lateral movement of the check valve is effectively eliminated which minimizes noise and vibration of the cheek valve assembly.
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U.S. Appl. No. 09/950,099, filed Sep. 10, 2001, “Shock Absorber Through the Rod Damping Adjustment”.
ArvinMeritor Technology LLC
Carlson & Gaskey & Olds
Kramer Devon
LandOfFree
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