Hydraulic and earth engineering – Foundation – Columnar structure
Reexamination Certificate
2011-05-31
2011-05-31
Mayo-Pinnock, Tara (Department: 3671)
Hydraulic and earth engineering
Foundation
Columnar structure
C405S245000, C175S171000, C269S152000
Reexamination Certificate
active
07950877
ABSTRACT:
A clamp assembly for securing a vibratory device to a pile comprising a frame, first and second clamp members, and an actuator. The frame is adapted to be secured to the vibratory device. The first clamp member is supported by the frame and comprises a first engaging surface defining peaks and valleys and comprising a first surface layer formed on the peaks and valleys defined by the first engaging surface. The second clamp member is supported by the frame and comprises a second engaging surface defining peaks and valleys and comprising a second surface layer formed on the peaks and valleys defined by the second engaging surface. The actuator member is arranged to displace at least one of the first and second clamp members such that first and second engaging surfaces engage the pile such that the pile is gripped by between first and second clamp members. At least one of the first and second surface layers defines a thickness dimension of at least approximately 0.0025 inches, and at least one of the first and second surface layers defines a grit of at least approximately 180 Emery.
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American Piledriving Equipment, Inc.
Mayo-Pinnock Tara
Schacht Michael R.
Schacht Law Office Inc.
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