GB865987A - Improvements in or relating to dental instruments - Google Patents

Improvements in or relating to dental instruments

Info

Publication number
GB865987A
GB865987A GB25685/59A GB2568559A GB865987A GB 865987 A GB865987 A GB 865987A GB 25685/59 A GB25685/59 A GB 25685/59A GB 2568559 A GB2568559 A GB 2568559A GB 865987 A GB865987 A GB 865987A
Authority
GB
United Kingdom
Prior art keywords
cages
inner races
tubular member
speed
spindle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB25685/59A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB865987A publication Critical patent/GB865987A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/38—Ball cages
    • F16C33/3837—Massive or moulded cages having cage pockets surrounding the balls, e.g. machined window cages
    • F16C33/3843—Massive or moulded cages having cage pockets surrounding the balls, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/02—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design characterised by the drive of the dental tools
    • A61C1/05—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design characterised by the drive of the dental tools with turbine drive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/08—Machine parts specially adapted for dentistry
    • A61C1/18—Flexible shafts; Clutches or the like; Bearings or lubricating arrangements; Drives or transmissions
    • A61C1/181—Bearings or lubricating arrangements, e.g. air-cushion bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2316/00—Apparatus in health or amusement
    • F16C2316/10—Apparatus in health or amusement in medical appliances, e.g. in diagnosis, dentistry, instruments, prostheses, medical imaging appliances
    • F16C2316/13—Dental machines

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

865,987. Dental handpieces. GALLAY, R., and STERN, C. July 27, 1959 [Aug. 14, 1958; Dec. 3, 1958], No. 25685/59. Class 81 (2). A high-speed dental engine is characterized by two coaxial ball or roller bearings 3, 4, the inner races 9, 10 of which are connected, at least indirectly and in spaced relationship to one another, to the spindle 15 of the tool to be driven. Nozzles 16, 17 are adapted to direct a stream of pressure fluid, preferably air, between the two bearings so as to drive, directly or indirectly, the cages 7, 8 thereof, and thereby drive the inner races 9, 10 at a speed which is a multiple of the speed of the cages. As shown, the inner races 9, 10 are secured to a tubular member 11 in which the spindle 15 is retained by means of a spring 14. In another embodiment (not shown), a single nozzle directs air against the rotor of a turbine which rotates freely on a tubular member similar to the member 11 but is coupled to the cages of two ball or roller bearings, the inner races of which are rigidly secured to the tubular member. Alternatively, the rotor may be adapted to direct the air received from the nozzle on to the two cages.
GB25685/59A 1958-08-14 1959-07-27 Improvements in or relating to dental instruments Expired GB865987A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH6294158 1958-08-14
CH6690558 1958-12-03

Publications (1)

Publication Number Publication Date
GB865987A true GB865987A (en) 1961-04-26

Family

ID=4543653

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25685/59A Expired GB865987A (en) 1958-08-14 1959-07-27 Improvements in or relating to dental instruments

Country Status (3)

Country Link
DE (1) DE1115409B (en)
FR (1) FR1231967A (en)
GB (1) GB865987A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1268311B (en) * 1963-09-26 1968-05-16 Siemens Ag Tool clamping device for dental angular handpieces

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2180993A (en) * 1937-07-30 1939-11-21 Emory J Monnier Pneumatic motor
CH246509A (en) * 1944-03-15 1947-01-15 Oerlikon Buehrle Ag Grinder operated by compressed air.
US2564893A (en) * 1948-05-10 1951-08-21 Eugene V Gibbons Quick-detachable chuck
DE938438C (en) * 1953-11-20 1956-02-02 Kaltenbach & Voigt Hand or angle piece for dental purposes

Also Published As

Publication number Publication date
FR1231967A (en) 1960-10-04
DE1115409B (en) 1961-10-19

Similar Documents

Publication Publication Date Title
GB1018684A (en) Improvements in or relating to air driven turbines
GB1278943A (en) Improvements in or relating to dental handpieces
US4146964A (en) Dental handpiece
GB865987A (en) Improvements in or relating to dental instruments
GB1309712A (en) Spindle assembly
US3778904A (en) Cooling system for a dental handpiece
GB851110A (en) Improvements in or relating to a dental handpiece having a turbine for driving a dental tool
GB1029681A (en) Improvements in or relating to dental handpieces
US3906635A (en) Dental handpiece
GB932963A (en) Improvements in or relating to handpieces for dental drills or the like
GB1145825A (en) Improvements in or relating to gas bearings for turbines and the like
FR2329198A1 (en) Spraying machine for fruit trees and vines - has nozzles on rotating blades to form spray by centrifugal force and air movement
GB672341A (en) Improvements in and relating to ball-bearings
US3076267A (en) Handpieces for dental purposes
GB848540A (en) Improvements in or relating to dental handpieces having a head enclosing a compressed air turbine for driving a dental tool
GB849324A (en) Improvements in or relating to dental handpieces
GB1037259A (en) Improvements in or relating to spray heads
GB902220A (en) Improvements in or relating to dental handpieces
GB913106A (en) Improvements in or relating to dental handpieces having an air turbine for driving adental tool
GB930700A (en) Improvements in or relating to machine bearings
GB993381A (en) Improvements in reversible pressure fluid driven portable tools
GB634966A (en) Improvements in or relating to drilling machine spindles or the like
GB942100A (en) Improvements in or relating to a mirror arrangement, particularly for examining cavities, and especially a surgical or dentist's mirror
ES355980A1 (en) Pneumatic motor unit for machine tools
GB998442A (en) Improvements in or relating to high speed tools