Method for installing an arch-type underbracing on a utility...

Details Method for installing an arch-type underbracing on a utility... Method for installing an arch-type underbracing on a utility...

2008-02-19

2009-10-13

Lagman, Frederick L (Department: 3672)

Hydraulic and earth engineering

Foundation

Columnar structure

C405S232000, C052S745170

Reexamination Certificate

active

07600947

ABSTRACT:
A method for installing a utility pole and arch-type underbracing has developed by using an extendable excavating unit mounted on an auger crane. The method comprises two steps of excavation that: the primary hole is excavated about 75 cm in depth by extending an arm about 80 cm diameter of the extendable excavation unit. The secondary hole is excavated to have a standard depth for erecting the utility pole. Then, orientation of the arch-type underbracing is determined for setting on the primary hole. An underbracing hook is installed to the arch-type underbracing for lifting and attaching a U-bolt temporarily to the arch-type underbracing by surround the utility pole. A lead wire of the arch-type underbracing is connected to an earth wire of the utility pole. The arch-type underbracing is tightened with the U-bolt surrounded the utility pole. The excavated soil is filling back into the gaps around the utility pole and the holes by tempering.

REFERENCES:
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patent: 5984587 (1999-11-01), Odle
patent: 6398392 (2002-06-01), Gordin et al.
patent: 6815607 (2004-11-01), Gingras
patent: 2001/0018978 (2001-09-01), Gordin et al.
patent: 2002/0007613 (2002-01-01), Gordin et al.
patent: 2002/0034369 (2002-03-01), Forrester et al.
patent: 2007/0022706 (2007-02-01), Fournier

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