GB1466348A – Air bearing device
– Google Patents
GB1466348A – Air bearing device
– Google Patents
Air bearing device
Info
Publication number
GB1466348A
GB1466348A
GB984074A
GB984074A
GB1466348A
GB 1466348 A
GB1466348 A
GB 1466348A
GB 984074 A
GB984074 A
GB 984074A
GB 984074 A
GB984074 A
GB 984074A
GB 1466348 A
GB1466348 A
GB 1466348A
Authority
GB
United Kingdom
Prior art keywords
shaft
bushes
march
bearing device
air bearing
Prior art date
1973-03-06
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
GB984074A
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.)
NSK Ltd
Original Assignee
NSK Ltd
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.)
1973-03-06
Filing date
1974-03-05
Publication date
1977-03-09
1974-03-05
Application filed by NSK Ltd
filed
Critical
NSK Ltd
1977-03-09
Publication of GB1466348A
publication
Critical
patent/GB1466348A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
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
F16C32/0618—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 via porous material
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
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
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
Abstract
1466348 Turbines – fluid bearings NIPPON SEIKO KK 5 March 1974 [6 March 1973] 9840/74 Heading FIT [Also in Divisions A5 and F2] An aerostatic bearing 2 supporting a rotatable shaft 4 in a dental handpiece is formed of porous material e.g. sintered metal, ceramic material or porous synthetic resin. The bearing may consist of two bushes 21, 22 which engage with two flanged sleeves 81, 82 provided on the shaft so as to transmit axial as well as radial thrust. The bushes may be supported in the housing 1 of the handpiece by O-rings 3. The shaft may carry a turbine blade 41 by which the shaft is driven.
GB984074A
1973-03-06
1974-03-05
Air bearing device
Expired
GB1466348A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
JP1973027291U
JPS529833Y2
(en)
1973-03-06
1973-03-06
Publications (1)
Publication Number
Publication Date
GB1466348A
true
GB1466348A
(en)
1977-03-09
Family
ID=12216961
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB984074A
Expired
GB1466348A
(en)
1973-03-06
1974-03-05
Air bearing device
Country Status (3)
Country
Link
US
(1)
US3969822A
(en)
JP
(1)
JPS529833Y2
(en)
GB
(1)
GB1466348A
(en)
Families Citing this family (10)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS6043724U
(en)
*
1983-09-02
1985-03-27
東陶機器株式会社
hydrostatic fluid bearing slider
EP0374276B1
(en)
*
1988-12-19
1995-04-19
Matsutani Seisakusho Co. Ltd.,
Dental burr and dental handpiece
DE4234287A1
(en)
*
1992-10-10
1994-04-14
Melchior Hans Ulrich
Dental hand drills or cutters
US6203322B1
(en)
1999-04-15
2001-03-20
David Kraenzle
Dental prophylaxis angle
JP4722340B2
(en)
*
2001-08-08
2011-07-13
Ｔｈｋ株式会社
Dynamic pressure sealing device and rotary joint device using the same
US20040244633A1
(en)
*
2003-05-08
2004-12-09
Witmer Warner H.
Cats-constrained airplane transportation system
US8973848B2
(en)
2014-09-08
2015-03-10
Efc Systems, Inc.
Composite air bearing assembly
US9970481B1
(en)
2017-09-29
2018-05-15
Efc Systems, Inc.
Rotary coating atomizer having vibration damping air bearings
US10753392B2
(en)
2018-06-11
2020-08-25
Trane International Inc.
Porous gas bearing
US10774873B2
(en)
2018-06-11
2020-09-15
Trane International Inc.
Porous gas bearing
Family Cites Families (10)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2442202A
(en)
*
1943-09-03
1948-05-25
Gen Register Corp
Bearing
US2645534A
(en)
*
1950-02-10
1953-07-14
Gen Electric
Pressurized bearing
GB1018300A
(en)
*
1963-03-12
1966-01-26
Micro Turbines Ltd
Improvements in or relating to high speed gas driven turbines
DE1491027B1
(en)
*
1965-03-23
1970-02-05
Kaltenbach & Voigt
Clamping device for holding rotating dental tools
US3471125A
(en)
*
1965-04-10
1969-10-07
Siemens Reiniger Werke Ag
Dental handpiece with compressed-air turbine drive
US3451134A
(en)
*
1966-09-12
1969-06-24
Honeywell Inc
Dental handpiece
GB1189884A
(en)
*
1967-01-25
1970-04-29
Morita Mfg
A Dental Handpiece
US3475065A
(en)
*
1967-02-15
1969-10-28
Apex Bearings Co The
Gas bearings of the linear motion single plane type
CH494021A
(en)
*
1968-07-01
1970-07-31
Bien Air
Dental turbine for handpiece
GB1271262A
(en)
*
1969-05-23
1972-04-19
Cmw Lab Ltd
Turbines
1973
1973-03-06
JP
JP1973027291U
patent/JPS529833Y2/ja
not_active
Expired
1974
1974-03-01
US
US05/447,208
patent/US3969822A/en
not_active
Expired – Lifetime
1974-03-05
GB
GB984074A
patent/GB1466348A/en
not_active
Expired
Also Published As
Publication number
Publication date
JPS49131789U
(en)
1974-11-13
JPS529833Y2
(en)
1977-03-02
US3969822A
(en)
1976-07-20
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Legal Events
Date
Code
Title
Description
1977-07-27
PS
Patent sealed [section 19, patents act 1949]
1990-10-31
PCNP
Patent ceased through non-payment of renewal fee
