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1. WO2007142930 - IMPROVED BEARING FOR DENTAL HANDPIECE

Publication Number WO/2007/142930
Publication Date 13.12.2007
International Application No. PCT/US2007/012669
International Filing Date 29.05.2007
IPC
A61C 1/18 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
1Dental machines for boring or cutting
08Machine parts specially adapted for dentistry
18Flexible shafts; Clutches or the like
F16C 27/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
27Elastic or yielding bearings or bearing supports, for exclusively rotary movement
06by means of parts of rubber or like materials
F16C 33/62 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
33Parts of bearings; Special methods for making bearings or parts thereof
30Parts of ball or roller bearings
58Raceways; Race rings
62Selection of substances
CPC
A61C 1/05
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
1Dental machines for boring or cutting ; ; General features of dental machines or apparatus, e.g. hand-piece design
02characterised by the drive of the dental tools
05with turbine drive
A61C 1/181
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
1Dental machines for boring or cutting ; ; General features of dental machines or apparatus, e.g. hand-piece design
08Machine parts specially adapted for dentistry
18Flexible shafts; Clutches or the like; ; Bearings or lubricating arrangements; Drives or transmissions
181Bearings or lubricating arrangements, e.g. air-cushion bearings
F16C 19/163
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
19Bearings with rolling contact, for exclusively rotary movement
02with bearing balls essentially of the same size in one or more circular rows
14for both radial and axial load
16with a single row of balls
163with angular contact
F16C 19/547
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
19Bearings with rolling contact, for exclusively rotary movement
54Systems consisting of a plurality of bearings with rolling friction
546Systems with spaced apart rolling bearings including at least one angular contact bearing
547with two angular contact rolling bearings
F16C 2240/70
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
2240Specified values or numerical ranges of parameters; Relations between them
40Linear dimensions, e.g. length, radius, thickness, gap
70Diameters; Radii
F16C 2316/13
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
2316Apparatus in health or amusement
10in medical appliances, e.g. in diagnosis, dentistry, instruments, prostheses, medical imaging appliances
13Dental machines
Applicants
  • DENTSPLY INTERNATIONAL INC. [US]/[US] (AllExceptUS)
  • NOVAK, Eugene, J. [US]/[US] (UsOnly)
  • PAPANEK, Tom [US]/[US] (UsOnly)
  • AYZENSHETYN, Mikhail [US]/[US] (UsOnly)
Inventors
  • NOVAK, Eugene, J.
  • PAPANEK, Tom
  • AYZENSHETYN, Mikhail
Agents
  • HURA, Douglas, J.
Priority Data
11/444,89031.05.2006US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVED BEARING FOR DENTAL HANDPIECE
(FR) ROULEMENT AMÉLIORÉ POUR INSTRUMENT DENTAIRE
Abstract
(EN)
A dental handpiece (10) has a supporting rotor assembly (15) and ball bearings (13, 14) supporting the rotor. Each ball bearing (13, 14) has a plurality of balls (22). Each bearing (13, 14) has an inner race (20) and an outer race (21) and at least the outer race (21) has an increased outer diameter.
(FR)
L'invention concerne un instrument dentaire (10) ayant un ensemble rotor de support (15) et des roulements à billes (13, 14) supportant le rotor. Chaque roulement à billes (13, 14) a une pluralité de billes (22). Chaque roulement (13, 14) a une bague intérieure (20) et une bague extérieure (21) et au moins la bague extérieure (21) a un diamètre extérieur supérieur.
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