CA996175A - Electric motor with air cushion supported rotor - Google Patents

Electric motor with air cushion supported rotor

Info

Publication number
CA996175A
CA996175A CA186,351A CA186351A CA996175A CA 996175 A CA996175 A CA 996175A CA 186351 A CA186351 A CA 186351A CA 996175 A CA996175 A CA 996175A
Authority
CA
Canada
Prior art keywords
electric motor
air cushion
cushion supported
supported rotor
rotor
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
CA186,351A
Other languages
English (en)
Other versions
CA186351S (en
Inventor
Hermann Landgraf
Eugen Hohmann
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Application granted granted Critical
Publication of CA996175A publication Critical patent/CA996175A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/086—Structural association with bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
    • H02K7/088—Structural association with bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly radially supporting the rotor directly
    • 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
    • A61C1/06—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 electric 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H02K7/145—Hand-held machine tool
    • 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
    • F16C2380/00—Electrical apparatus
    • F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
CA186,351A 1972-11-22 1973-11-21 Electric motor with air cushion supported rotor Expired CA996175A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2257301A DE2257301A1 (de) 1972-11-22 1972-11-22 Elektromotor, insbesondere fuer den antrieb zahnaerztlicher hand- und winkelstuecke

Publications (1)

Publication Number Publication Date
CA996175A true CA996175A (en) 1976-08-31

Family

ID=5862466

Family Applications (1)

Application Number Title Priority Date Filing Date
CA186,351A Expired CA996175A (en) 1972-11-22 1973-11-21 Electric motor with air cushion supported rotor

Country Status (12)

Country Link
US (1) US3900952A (es)
JP (1) JPS4983290A (es)
AT (1) AT324486B (es)
BR (1) BR7309115D0 (es)
CA (1) CA996175A (es)
CH (1) CH564271A5 (es)
CS (1) CS171185B2 (es)
DE (1) DE2257301A1 (es)
GB (1) GB1438848A (es)
IT (1) IT1001912B (es)
NL (1) NL7311817A (es)
SE (1) SE389777B (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2613061C3 (de) * 1976-03-26 1984-06-14 Siemens AG, 1000 Berlin und 8000 München Antriebsmotor für ein zahnärztliches Hand- und Winkelstück
US4320927A (en) * 1980-03-21 1982-03-23 Sertich Anthony T Dental drill with magnetic air turbine having magnetic bearings
JPS63116732A (ja) * 1986-11-06 1988-05-21 Fukae Kogyo Kk 粉粒体処理装置
GB2266009B (en) * 1992-04-08 1996-08-07 Fluid Film Devices Limited Improvements in or relating to electric motors
JPH09192904A (ja) * 1996-01-18 1997-07-29 Toshiba Mach Co Ltd 空気軸受式工作機械
DE19644491A1 (de) * 1996-10-25 1998-04-30 Kaltenbach & Voigt Dentales Handstück
WO2001003601A1 (en) 1999-07-13 2001-01-18 Dentsply International Inc. Rotary handpiece for endodontic instrumentation
DE10130897C1 (de) * 2001-06-27 2003-01-09 Bahner Feinwerktechnik Gmbh Handstück für ein Medizinisches oder kosmetisches Bearbeitungsgerät
US6655033B2 (en) * 2001-10-16 2003-12-02 Bettcher Indusrties, Inc. Pneumatic hand tool with improved control valve
EP1949869B1 (de) * 2007-01-24 2014-03-12 W & H Dentalwerk Bürmoos GmbH Mechanisch geführtes medizinisches, insbesondere dentales Handgriffelement
DE102012005178B4 (de) 2012-03-16 2022-02-24 Hellmut Ruck Gmbh Medizinisches oder kosmetisches Bearbeitungsgerät

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124962A (en) * 1964-03-17 hirtreiter
US2905149A (en) * 1957-03-28 1959-09-22 Gardner Denver Co Rotary tool construction
US3243238A (en) * 1962-07-20 1966-03-29 Lyman Joseph Magnetic suspension
US3439422A (en) * 1963-05-22 1969-04-22 Roland E Doeden Air tool
GB1198385A (en) * 1967-10-09 1970-07-15 Toyoda Machine Works Ltd Apparatus for Controlling the Rotation of a Gas-Turbine-Driven Rotating Spindle
US3472323A (en) * 1967-10-24 1969-10-14 Robert M Hall Pneumatically driven surgical instrument
GB1227783A (es) * 1968-11-22 1971-04-07
US3584629A (en) * 1968-12-03 1971-06-15 Weck & Co Inc Edward Power driven surgical instrument having aspirator
US3578872A (en) * 1969-11-14 1971-05-18 Air Instr Inc Speed and torque control for surgical turbine
US3677351A (en) * 1970-10-06 1972-07-18 Harrington Geissler & Associat Rotary tool and turbine therefor
US3758228A (en) * 1972-03-17 1973-09-11 D Post Rotary engine

Also Published As

Publication number Publication date
JPS4983290A (es) 1974-08-10
GB1438848A (en) 1976-06-09
NL7311817A (es) 1974-05-27
AT324486B (de) 1975-09-10
SE389777B (sv) 1976-11-15
US3900952A (en) 1975-08-26
CH564271A5 (es) 1975-07-15
BR7309115D0 (pt) 1974-08-29
IT1001912B (it) 1976-04-30
CS171185B2 (es) 1976-10-29
DE2257301A1 (de) 1974-05-30

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