Stone working – Splitting – shearing – and punching
Reexamination Certificate
2007-07-17
2007-07-17
Morgan, Eileen P. (Department: 3723)
Stone working
Splitting, shearing, and punching
C125S040000, C144S004600, C144S195100, C083S694000, C083S639500, C083S563000
Reexamination Certificate
active
11073182
ABSTRACT:
An apparatus (10) for shearing off reinforced concrete piles and metal piles, casing and conductor pipes, and crushing reinforced concrete piles has a frame (11) with first and second ends and a cutter blade (41) movably mounted on the frame driven by hydraulic rams (21) between a retracted position adjacent to the first end and an extended position toward the second end. An abutment gate (30) pivotally mounted and latched at the frame second end has vertically spaced first and second abutment surfaces (52A,52B) and first and second horizontal shearing surfaces (53A,53B) disposed in parallel vertically spaced relation defining an opening (51) therebetween through which the cutting edge (41B,41C) of the blade passes. Removable crushing attachments (60A,60B) allow crushing of concrete piles, and removable arcuate abutment attachments (54) accommodate cylindrical piles, casing and conductor pipes.
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Morgan Eileen P.
Roddy Kenneth A.
LandOfFree
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