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GB1199674A - Improvements in or relating to Turbine-Type Dental Handpieces - Google Patents

Improvements in or relating to Turbine-Type Dental Handpieces

Info

Publication number
GB1199674A
GB1199674A GB32973/68A GB3297368A GB1199674A GB 1199674 A GB1199674 A GB 1199674A GB 32973/68 A GB32973/68 A GB 32973/68A GB 3297368 A GB3297368 A GB 3297368A GB 1199674 A GB1199674 A GB 1199674A
Authority
GB
United Kingdom
Prior art keywords
shaft
ring
bearing
air
supplied
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
GB32973/68A
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.)
Kaltenbach and Voigt GmbH
Original Assignee
Kaltenbach and Voigt GmbH
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
Priority claimed from DE19671566236 external-priority patent/DE1566236B1/en
Application filed by Kaltenbach and Voigt GmbH filed Critical Kaltenbach and Voigt GmbH
Publication of GB1199674A publication Critical patent/GB1199674A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0603—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion
    • F16C32/0614—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic 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
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0681—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load
    • F16C32/0696—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load for both radial and axial load

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)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

1,199,674. Dental handpieces. KALTENEACH & VOIGT. 10 July, 1968 [13 July, 1967], No. 32973/68. Heading A5R. [Also in Division F1] A dental handpiece comprises an air turbine having a rotor 12 fixed to a shaft 11, and a bearing 9 supporting one end of the shaft, said bearing being provided with frusto-conical bearing surfaces 5, 6 formed on inner and outer ring members 15, 16 respectively. The bearing surfaces are lubricated by compressed air supplied through radial bores and' axial movement of the inner ring 15 caused by the air pressure is resisted by a spring 32. The spring is located between an abutment 15b on the ring 15 and one end of an axially adjustable clamping ring 30. The size of the bearing air gap may be altered by adjusting the ring 30 which is provided with a convex exterior surface in vertical cross-section. Air is supplied to the rotor via a conduit 27a and lubricating air is supplied through a passage 25, the ring 15 being entrained as the shaft 11 rotates. A similar bearing 10 supports the shaft on the other side of the rotor. A dental tool 13 is mounted in a bore in the shaft 11.
GB32973/68A 1967-07-13 1968-07-10 Improvements in or relating to Turbine-Type Dental Handpieces Expired GB1199674A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEK0062813 1967-07-13
DE19671566236 DE1566236B1 (en) 1967-07-13 1967-07-13 Dental turbine handpiece

Publications (1)

Publication Number Publication Date
GB1199674A true GB1199674A (en) 1970-07-22

Family

ID=25753078

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32973/68A Expired GB1199674A (en) 1967-07-13 1968-07-10 Improvements in or relating to Turbine-Type Dental Handpieces

Country Status (3)

Country Link
CH (1) CH492444A (en)
FR (1) FR1577514A (en)
GB (1) GB1199674A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2207195A (en) * 1987-07-22 1989-01-25 G C Dental Ind Corp Turbine driven dental tool

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5441115Y2 (en) * 1976-01-31 1979-12-03

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2207195A (en) * 1987-07-22 1989-01-25 G C Dental Ind Corp Turbine driven dental tool
GB2207195B (en) * 1987-07-22 1992-01-15 G C Dental Ind Corp Dental chuckless handpiece

Also Published As

Publication number Publication date
CH492444A (en) 1970-06-30
FR1577514A (en) 1969-08-08

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees