Material or article handling – Well pipe or rod racking mechanism – With slope change
Reexamination Certificate
2011-04-05
2011-04-05
Adams, Gregory W (Department: 3652)
Material or article handling
Well pipe or rod racking mechanism
With slope change
C414S783000, C414S742000, C901S021000, C901S022000
Reexamination Certificate
active
07918636
ABSTRACT:
A pipe handling apparatus has a boom pivotally movable between a first position and a second position, a riser assembly pivotally connected to the boom, an arm pivotally connected at one end to the first portion of the riser assembly and extending outwardly therefrom, a gripper affixed to an opposite end of the arm suitable for gripping a diameter of the pipe, a link pivotally connected to the riser assembly and pivotable so as to move relative to the movement of the boom between the first and second positions, and a brace having a one end pivotally connected to the boom and an opposite end pivotally connected to the arm between the ends of the arm. The riser assembly has a first portion extending outwardly at an obtuse angle with respect to the second portion.
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Adams Gregory W
Fischer John G.
Scheet & Stone LLP
T&T Engineering Services
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