Hand-operated circular saw having blade cutting depth...

Cutlery – Cutting tools – Saw

Reexamination Certificate

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Details

C030S373000, C030S390000

Reexamination Certificate

active

07047650

ABSTRACT:
A hand-operated circular saw having blade cutting depth the adjustment device includes a hollow interior tubular body having a hand grasp portion, a head portion, a motor disposed in the head portion to operate a threaded axis protrude from a threaded circular protrusion on an outer side of head portion, an upper plate secured to the outer side including a circular hole engaged with the circular protrusions, a pair of pivotal tubes and a pair of horizontal arc protrusions on the top, a guard plate, a pad ring, an internally thread tube and a saw blade sequentially secured to the axis, a lower plate connected to a pair of cylinder rods inside the pivotal tubes, a pair of quickly operated bolts in the top of the pivotal tubes for adjusting the vertical positions of the lower plate and the saw blade, and a cutting depth adjustment device.

REFERENCES:
patent: 5005321 (1991-04-01), Barth et al.
patent: 5031325 (1991-07-01), Walter et al.
patent: 5637035 (1997-06-01), Yee
patent: 5784789 (1998-07-01), Vargas
patent: 5974674 (1999-11-01), Kelly
patent: 6699114 (2004-03-01), Booeshaghi et al.

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