Material or article handling – Pole or tree handlers
Reexamination Certificate
2005-02-22
2005-02-22
Underwood, Donald W. (Department: 3652)
Material or article handling
Pole or tree handlers
C037S323000
Reexamination Certificate
active
06857837
ABSTRACT:
A utility pole installation system, comprising a hydrovac unit having a chassis and a utility pole positioner mounted on the chassis. The hydrovac unit has an internal combustion engine mounted on the chassis, and a hydrovac boom mounted on the chassis. A hydraulic power supply mounted on the chassis is powered by the internal combustion engine and used to power both the hydrovac boom and the utility pole positioner.
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Terex Telelect product brochures, 6 pages, believed to be dated Sep., 2000.
Canadian Patent Application 2,317,667, filed Sep. 6, 2000, published Mar. 8, 2001.
American Hydrovac & Excavation product brochure, 3 pages, dated May, 1999, date indicated is when equipment shown in brochure was used in the United States for utility pole digging according to person at company.
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