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1. US4466795 - Helicoidally grooved dental burr

Office
United States of America
Application Number 06420248
Application Date 13.09.1982
Publication Number 4466795
Publication Date 21.08.1984
Grant Number 4466795
Grant Date 21.08.1984
Publication Kind A
IPC
A61C 3/02
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
3Dental tools or instruments
02Tooth drilling or cutting instruments; Instruments acting like a sandblast machine
A61C 3/06
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
3Dental tools or instruments
06Tooth grinding or polishing discs; Holders therefor
CPC
A61C 3/06
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
3Dental tools or instruments
06Tooth grinding or polishing discs; Holders therefor
Applicants Dendia-Werk Dr. Ing. Hans O. Scheid Gesellschaft M.B.H.
Inventors Plischka Gerhard
Agents Ross Karl F.
Priority Data A730/1981 17.02.1981 AT
Title
(EN) Helicoidally grooved dental burr
Abstract
(EN)

A dental burr to be used in a clockwise-rotating chuck of a drilling machine has a generally cylindrical or conical working surface, coated with abrasive particles (diamonds), which forms a flat helicoidal strip of left-handed pitch whose width substantially equals that of an intervening continuous groove.