Cutlery – Cutting tools – Saw
Patent
1994-11-30
1997-07-29
Watts, Douglas D.
Cutlery
Cutting tools
Saw
30390, B23D 4516
Patent
active
056511825
ABSTRACT:
A saw assembly (10) for sawing portions of a floor (24) adjacent to a vertical wall (26) and below and overhang (28) including a blade driving subassembly (12) having housing (30) with a forward extending, low profile saw arm (52). The housing holds a trigger switch (36), an electric motor (32) and a drive shaft (34) with a threaded saw attachment end (62). The saw attachment end (62) extends beyond a rest ting (56) on the distal end of the saw arm (52). The electric motor (32) drives a blade subassembly (12) including a circular blade (66), a blade collar (65), and a locking nut (64) which are attached to the saw attachment end (62). The blade driving subassembly (14) is attached to a floor plate subassembly (18). A blade guard (22) covers a portion of the circular saw (66) exposing a downwardly extending cutting portion (76). An outrigger subassembly (16) includes two outrigger arms (116) which lock into an outwardly extending position, contacting a floor (24). The outrigger subassembly (16) resists any rotational movement translated to the blade driving subassembly (14) by torque generated from cutting resistance to the circular blade (66).
REFERENCES:
patent: 2352432 (1944-06-01), Harrington
patent: 2714905 (1955-08-01), Chayton
patent: 3356111 (1967-12-01), Mitchell
patent: 4135419 (1979-01-01), Chapin
patent: 4598744 (1986-07-01), Bons et al.
patent: 4873766 (1989-10-01), Johnston
patent: 5398456 (1995-03-01), Kleider
Kim Jack T. B.
Strickler Robert W.
Hughes Michael J.
Sako Bradley T.
Watts Douglas D.
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