Cutting – Tool or tool with support – Toothed blade or tooth therefor
Patent
1997-02-24
1998-12-15
Jones, Eugenia A.
Cutting
Tool or tool with support
Toothed blade or tooth therefor
83835, 83854, 83855, B27B 3308
Patent
active
058485643
ABSTRACT:
A saw tooth apparatus is adapted to be connected to and driven by a power source and includes a circular disk-like base connected to the power source. The circular disk-like base is bisected by a centrally located center plane. A plurality of tooth supports are distributed peripherally around the circular disk-like base. Each tooth support has a minimum transverse tooth support thickness, a maximum transverse tooth support thickness, and a tooth support radial height from a geometrical center of the circular disk-like base. A plurality of teeth are provided, and each tooth is supported by a leading side of a respective tooth support. Each tooth includes a most radially distal tooth portion, a pair of arcuately contoured intermediate tooth portions located symmetrically on either side of the center plane and adjacent to the most radially distal tooth portion, and a least radially distal tooth portion located adjacent to the pair of arcuately contoured intermediate tooth portions. The most radially distal tooth portion includes most radial outer side portions which are parallel to the center plane. The least radially distal tooth portion includes least radial outer side portions which are perpendicular to the center plane. Each of the pair of arcuately contoured intermediate tooth portions tapers continuously from a respective most radial outer side portion to a respective least radial outer side portion. When a board is cut, simultaneously, each cut piece is formed with an arcuately contoured edge.
REFERENCES:
patent: 297816 (1884-04-01), Ledward
patent: 505154 (1893-09-01), Bowles
patent: 2913024 (1959-11-01), Key
patent: 5063980 (1991-11-01), Schultz
patent: 5379672 (1995-01-01), Thomas
Jones Eugenia A.
Vaughn T. Anthony
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