Stone working – Sawing – Rotary
Reexamination Certificate
2007-09-11
2011-11-22
Eley, Timothy V (Department: 3723)
Stone working
Sawing
Rotary
C125S038000, C144S252100, C451S456000
Reexamination Certificate
active
08061344
ABSTRACT:
A dust collector is provided for use with a SLAB saw, especially suited for dry-cutting a channel within pavement or similar exterior surface. The collector includes telescoping upper and lower housings, an open front and lower base to receive a portion of a circular saw into the interior of the housing, and an exhaust outlet, for attaching to a vacuum duct, so as to exhaust dust-laden air from the interior of the housing. The housing includes a pivot mount, pivotally mounting the unit to a slab saw. Also provided is a system, including the dust collector with a circular saw and optionally a vacuum source and dust filter unit or units. Also provided is a method for dry-cutting a trench or channel within pavement or similar hard outside surface, which is particularly suitable for laying of cable such as fiber optic cable. The method may include the step of cutting through the pavement into the underlying hard-packed substrate.
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Eley Timothy V
Ostrolenk Faber LLP
Teraspan Networks Inc.
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