FR2440638B1 - - Google Patents

Info

Publication number
FR2440638B1
FR2440638B1 FR7926838A FR7926838A FR2440638B1 FR 2440638 B1 FR2440638 B1 FR 2440638B1 FR 7926838 A FR7926838 A FR 7926838A FR 7926838 A FR7926838 A FR 7926838A FR 2440638 B1 FR2440638 B1 FR 2440638B1
Authority
FR
France
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
FR7926838A
Other languages
French (fr)
Other versions
FR2440638A1 (en
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
Application filed by Kaltenbach and Voigt GmbH filed Critical Kaltenbach and Voigt GmbH
Publication of FR2440638A1 publication Critical patent/FR2440638A1/en
Application granted granted Critical
Publication of FR2440638B1 publication Critical patent/FR2440638B1/fr
Granted 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
    • A61C1/0007—Control devices or systems
    • A61C1/0015—Electrical systems
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H6/00—Emergency protective circuit arrangements responsive to undesired changes from normal non-electric working conditions using simulators of the apparatus being protected, e.g. using thermal images
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Engineering & Computer Science (AREA)
  • Control Of Direct Current Motors (AREA)
  • Protection Of Generators And Motors (AREA)
  • Stopping Of Electric Motors (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
FR7926838A 1978-11-03 1979-10-30 OVERLOAD PROTECTION DEVICE FOR A DRIVE MOTOR, PARTICULARLY FOR A DENTISTRY TREATMENT APPARATUS Granted FR2440638A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2847765A DE2847765C2 (en) 1978-11-03 1978-11-03 Circuit arrangement for protecting a drive motor from overload, in particular for a dental device

Publications (2)

Publication Number Publication Date
FR2440638A1 FR2440638A1 (en) 1980-05-30
FR2440638B1 true FR2440638B1 (en) 1984-02-24

Family

ID=6053814

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7926838A Granted FR2440638A1 (en) 1978-11-03 1979-10-30 OVERLOAD PROTECTION DEVICE FOR A DRIVE MOTOR, PARTICULARLY FOR A DENTISTRY TREATMENT APPARATUS

Country Status (6)

Country Link
JP (1) JPS5566228A (en)
AT (1) AT381811B (en)
CH (1) CH649178A5 (en)
DE (1) DE2847765C2 (en)
FR (1) FR2440638A1 (en)
IT (1) IT1119562B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3042138A1 (en) * 1980-11-03 1982-05-27 Mannesmann AG, 4000 Düsseldorf PROTECTIVE CIRCUIT DEVICE FOR A DC MOTOR, ESPECIALLY FOR A PRINTER REWINDING DC MOTOR
JPS57113726A (en) * 1980-12-29 1982-07-15 Matsushita Electric Ind Co Ltd Overcurrent breaking device for miniature dc motor
DE3128410A1 (en) * 1981-07-17 1983-02-03 Hilti AG, 9494 Schaan EVALUATION CIRCUIT FOR AN ELECTRIC TORQUE SIGNAL ON A DRILLING MACHINE
KR860000144B1 (en) * 1981-11-20 1986-02-27 도시오 미끼야 Drilling machine having an electromagnetic base
FR2542937B1 (en) * 1983-03-15 1985-12-06 Black & Decker Inc DEVICE FOR ELECTRICALLY SUPPLYING THE MOTOR OF AN ELECTRO-PORTABLE MACHINE PROVIDING PROTECTION AGAINST THE REACTION TORQUE PRODUCED THEREBY
DE3519472A1 (en) * 1984-07-03 1986-01-16 Keiper Recaro GmbH & Co, 5630 Remscheid Protection circuit
DE3513179C2 (en) * 1985-04-12 2001-03-15 Papst Licensing Gmbh & Co Kg Protection circuit for collectorless DC motors
DE19705925B4 (en) * 1997-02-17 2005-11-03 Robert Bosch Gmbh Control device for operating a wiper motor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE689100C (en) * 1937-10-23 1940-03-11 Karl Schneider Motor overload protection device
DE1588032A1 (en) * 1966-03-18 1970-06-25 Biviator Sa Electrical limiting circuit
DE2258174C3 (en) * 1972-11-28 1979-04-05 Hartmann & Braun Ag, 6000 Frankfurt Circuit arrangement for monitoring the heating of current-carrying protégés
US3956670A (en) * 1973-01-30 1976-05-11 Westinghouse Electric Corporation Circuit interrupter circuit including improved control
JPS50144061A (en) * 1974-05-10 1975-11-19 Meidensha Corporation Motor overload protection system for electric cars
DE2431540C2 (en) * 1974-07-01 1984-09-13 Brown, Boveri & Cie Ag, 6800 Mannheim Circuit arrangement for protecting an electrical machine against excessive heating with a simulation device
JPS5286134A (en) * 1976-01-14 1977-07-18 Toshiba Corp Overload protector for motor
DE2622656C2 (en) * 1976-05-20 1982-09-09 Kaltenbach & Voigt Gmbh & Co, 7950 Biberach Circuit arrangement for regulating the speed of a DC motor, in particular for hand-held dental devices

Also Published As

Publication number Publication date
CH649178A5 (en) 1985-04-30
DE2847765A1 (en) 1980-05-08
DE2847765C2 (en) 1984-02-16
JPS5566228A (en) 1980-05-19
IT7969140A0 (en) 1979-11-02
ATA649379A (en) 1986-04-15
IT1119562B (en) 1986-03-10
FR2440638A1 (en) 1980-05-30
AT381811B (en) 1986-12-10

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Legal Events

Date Code Title Description
ST Notification of lapse