Abrasive drill

Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

51309R, 175409, 408145, 408704, B24D 1700

Patent

active

041289714

ABSTRACT:
An abrasive drill of small diameter is provided with a cored portion that is eccentric, i.e., lacking a substantial concentric portion, relative to the longitudinal axis of the drill. The core, regardless of shape, is located so that during drill rotation all of the surface of a workpiece within the outline of the end of the drill is abraded by some part of the rotating end of the drill. The drill composition comprises abrasive particles in a less abrasive matrix, and the core is not hollow but comprises relatively non-abrasive material. The drill is formed by deposition of matrix material entraining abrasive particles onto a taut filamentary mandrel. The mandrel preferably comprises one or more round filaments, either straight or twisted together, alongside the longitudinal axis of the drill, and may be metallic, such as copper wire or may be non-metallic, such as nylon or other synthetic polymeric textile fiber composition. The drill diameter may be on the order of a millimeter or so or smaller.

REFERENCES:
patent: 1625463 (1927-04-01), Gauthier
patent: 1634708 (1927-07-01), Chayes
patent: 1641206 (1927-09-01), Smith
patent: 2324377 (1943-07-01), Fischer
patent: 2643945 (1953-06-01), Buckner
patent: 3295941 (1967-01-01), Spellman
patent: 3372010 (1968-05-01), Parsons
patent: 3427759 (1969-02-01), Kistler
patent: 3436871 (1969-04-01), Schneider
patent: 3547608 (1970-12-01), Kitazawa
patent: 3850590 (1974-11-01), Chalkley

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

Abrasive drill does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Abrasive drill, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Abrasive drill will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-826422

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