Cutting by use of rotating axially moving tool – Tool or tool with support – Having axial – core-receiving central portion
Patent
1995-06-20
1998-09-08
Howell, Daniel W.
Cutting by use of rotating axially moving tool
Tool or tool with support
Having axial, core-receiving central portion
408207, 408224, B23B 5105
Patent
active
058036784
ABSTRACT:
An improved hole saw for cutting holes having a cylindrical shape that includes, along its cutting edge, a plurality of repetitive groups of saw teeth having at least four radially displaced trailing teeth. The displacement of each trailing tooth is such that it has a substantially greater displacement than for any other tooth of said group preceding said trailing tooth. The displacement of each tooth being such that the cutting edge thereof is characterized as being movable along a cutting path different from the cutting paths of the other teeth of the group as the hole saw is rotated whereby each tooth cuts chips of uniform size. Each group of teeth may include a raker tooth having no substantial displacement with respect to the side surfaces of the hole saw. The raker tooth may be the same height or of greater height than the trailing teeth.
REFERENCES:
patent: 3430526 (1969-03-01), Valenziano
patent: 3548687 (1970-12-01), Holloway
patent: 3648508 (1972-03-01), Hougen
patent: 3961858 (1976-06-01), Smith et al.
patent: 4500234 (1985-02-01), Orth et al.
patent: 4767245 (1988-08-01), Shoji et al.
patent: 4813819 (1989-03-01), Hougen
patent: 4968192 (1990-11-01), Hamilton
patent: 5016497 (1991-05-01), Sundstrom
patent: 5410935 (1995-05-01), Holston et al.
Partial Translation of German Patent 383,221, Published Oct. 11, 1923.
Hampton Stephen A.
Holston James R.
Korb William B.
American Saw & Mfg. Company
Howell Daniel W.
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