Damping spring for use in agricultural implements

Spring devices – Elastic extension devices – Compression spring

Reexamination Certificate

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Details

C267S070000

Reexamination Certificate

active

07322568

ABSTRACT:
A damping spring assembly particularly but not exclusively useful for damping the motion of rake wheels in agricultural wheel rakes. The damping spring includes a pair of extended U-bolts and a coil compression spring. The extended U-bolts are connected to spring holder bushings which bear on the ends of the coil compression spring. As the coil compression spring is compressed, a constrained resilient damping rod located within the extended shafts of the extended U-bolts is likewise compressed in length and expands in diameter to bear against the extended shafts of the extended U-bolts, thus providing a damping action to prevent snapping back of the damping spring.

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“Equipment to Rake and Merge Hay and Forage,” By K.J. Shinners and R.T. Schuler, http://www.uwex.edu/ces/forage/wfc/proceedings2003/equipment.htm, Sep. 30, 2004 (6 pgs).

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