Saw blade

Details Saw blade Saw blade

1989-12-06

1992-03-10

Watts, Douglas D.

Cutting

Tool or tool with support

Toothed blade or tooth therefor

83848, 83851, B23D 5700, B27B 3302

Patent

active

050941356

ABSTRACT:
A reduced resistance saw blade. The saw blade of the present invention has at least two or more groups of sawteeth, the groups of the sawteeth include a first group having a plurality of the sawteeth wherein the tips of the sawteeth are substantially situated on a first imaginary curve which changes in a periodic or irregular cycle, and a second group having a plurality of the sawteeth wherein the tips of the sawteeth are substantially situated on a second imaginary curve parallel to the first imaginary curve. Also provided is a saw blade which includes sets of the sawteeth having reversed set patterns, thus providing a saw blade which is capable of restraining deviation of the cut, maintaining the balance of the lateral sets of the overall saw blade. The saw blade of the present invention includes a plurality of sets of teeth, each set comprising unset, right set and left set teeth, wherein reversed set patterns with the same number of teeth are provided alternately.

REFERENCES:
patent: 349143 (1886-09-01), Clemson
patent: 1850478 (1932-03-01), Schaefer
patent: 2239317 (1941-04-01), Gibb
patent: 2534424 (1950-12-01), Dryden
patent: 2568870 (1951-09-01), Ronan
patent: 4195543 (1980-04-01), Tapply et al.
patent: 4557172 (1985-12-01), Yaneda
patent: 4727788 (1988-03-01), Yoshida et al.
patent: 4813324 (1989-03-01), Yoshida et al.
patent: 4958546 (1990-09-01), Yoshida et al.

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