Vibration isolator for a pneumatic pole or backfill tamper

Details Vibration isolator for a pneumatic pole or backfill tamper Vibration isolator for a pneumatic pole or backfill tamper

2006-05-24

2009-06-02

Rada, Rinaldi I. (Department: 3721)

Tool driving or impacting

Including means to vibrationally isolate a drive means from...

C173S162200, C173S170000, C173S171000, C173S210000, C173S211000

Reexamination Certificate

active

07540336

ABSTRACT:
A vibration isolation assembly is provided for use with a backfill tamper. In use, the vibration isolation assembly can be disposed between a handle and a percussion mechanism of the tamper and absorbs kickback forces from the percussion mechanism during backfill tamper operation. In one embodiment, the assembly includes an elongated conduit member that defines a passageway that allows compressed air to pass through the member to the percussion mechanism and a vibration dampening piston arrangement for absorbing feedback forces from the percussion mechanism during backfill tamper operation. The assembly may further include a spring arrangement for dampening vibration emanating from the piston.

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