Ceramic bit for high speed drilling

Cutting by use of rotating axially moving tool – Tool or tool with support – Having peripherally spaced cutting edges

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C408S144000, C408S0010BD

Reexamination Certificate

active

10961060

ABSTRACT:
A ceramic drill bit comprising a cylindrical shank and a shaped portion extending axially in line with the shank and having a free end forming the tip of the bit, a relief face extending from each main cutting edge with a relief angle lying in the range 4° to 10° approximately relative to a plane perpendicular to the axis of rotation of the bit, and two notches forming two secondary cutting faces extending from the central edge with positive cutting angles lying in the range 1° to 7° approximately relative to the axis of rotation of the bit.

REFERENCES:
patent: 2778252 (1957-01-01), Oxford, Jr.
patent: 4556347 (1985-12-01), Barish
patent: 4789277 (1988-12-01), Rhodes et al.
patent: 4898503 (1990-02-01), Barish
patent: 4983079 (1991-01-01), Imanaga et al.
patent: 5230593 (1993-07-01), Imanaga et al.
patent: 5423640 (1995-06-01), Lindblom et al.
patent: 5590987 (1997-01-01), Bouzounie
patent: 5641251 (1997-06-01), Leins et al.
patent: 6126367 (2000-10-01), Reed
patent: 6739809 (2004-05-01), Shaffer
patent: 0 936 014 (1999-08-01), None
patent: 2 674 160 (1992-09-01), None
patent: 2000263306 (2000-09-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Ceramic bit for high speed drilling does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ceramic bit for high speed drilling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ceramic bit for high speed drilling will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3931348

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.