Hydraulic and earth engineering – Earth treatment or control – Rock or earth bolt or anchor
Reexamination Certificate
2008-05-27
2008-05-27
Lagman, Frederick L. (Department: 3672)
Hydraulic and earth engineering
Earth treatment or control
Rock or earth bolt or anchor
C405S252100, C405S253000, C052S157000
Reexamination Certificate
active
07377723
ABSTRACT:
An adapter attachment for an auger which includes an connecting shaft sized and shaped to be attached to the pilot bit hole present in the end of an auger, after the removal of pilot bit. The adapter also includes a bolt flange for connection to a foundation anchor installation plate/tool such as a locking dog assembly. The adapter obviates the need to remove the auger from the Kelly bar during anchor installation. A modification includes eliminating the bolt flange and placing the connecting shaft directly to the locking dog assembly to form a pilot hole locking dog.
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Chance, Helical Foundations for Telecom Structures, Bulletin 02-1010, Rev. 5/04.
Lagman Frederick L.
Lewis, Rice & Fingersh L.C.
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