Cutting by use of rotating axially moving tool – Tool or tool with support – Having peripherally spaced cutting edges
Reexamination Certificate
2006-05-15
2011-12-06
Howell, Daniel (Department: 3726)
Cutting by use of rotating axially moving tool
Tool or tool with support
Having peripherally spaced cutting edges
C408S144000, C408S224000
Reexamination Certificate
active
08070399
ABSTRACT:
A drill point (1) for drilling sandwich panels (100), composite materials and similar, comprising a shank (2) for coupling into the chuck a tool apt to drive said point (1) in rotation; a drilling member, integral to the shank, comprising a substantially cylindrical working portion (3), and a cutting head (4), located at the end of the working portion (3), having cutting edges (C); wherein onto the surface of the working portion (3) there are obtained helical flutes (5), spirally arranged about a substantially central longitudinal axis (A-A) of the working portion (3), the flutes (5) ending on a top face (4′) of the cutting head (4), characterized in that the constructive geometry thereof provides a helix angle (ε) with respect to the longitudinal axis (A-A), along which there develop the helical flutes (5), substantially comprised in a range of 30° to 35°.
REFERENCES:
patent: 3019673 (1962-02-01), Sjostrand et al.
patent: 4556347 (1985-12-01), Barish
patent: 4898503 (1990-02-01), Barish
patent: 6585460 (2003-07-01), Meece et al.
patent: 6739809 (2004-05-01), Shaffer
patent: 202 11 589 (2004-01-01), None
patent: 203 04 580 (2004-08-01), None
patent: 818263 (1998-01-01), None
patent: 08039318 (1996-02-01), None
International Search Report for PCT/IB2006/051518 mailed Dec. 20, 2006.
Howell Daniel
Nixon & Vanderhye P.C.
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