DE3854652T2 - Schaltkreis in einem zahnärztlichen Handstück. - Google Patents

Schaltkreis in einem zahnärztlichen Handstück.

Info

Publication number
DE3854652T2
DE3854652T2 DE3854652T DE3854652T DE3854652T2 DE 3854652 T2 DE3854652 T2 DE 3854652T2 DE 3854652 T DE3854652 T DE 3854652T DE 3854652 T DE3854652 T DE 3854652T DE 3854652 T2 DE3854652 T2 DE 3854652T2
Authority
DE
Germany
Prior art keywords
handpiece
housing
circuitry
electromagnetic
dental handpiece
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 - Fee Related
Application number
DE3854652T
Other languages
English (en)
Other versions
DE3854652D1 (de
Inventor
George E Warrin
Rene J Perdreaux
Richard H Paschke
Teodor E Constantinescu
Robert Mcgill
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.)
Dentsply Sirona Inc
Original Assignee
Dentsply International Inc
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 Dentsply International Inc filed Critical Dentsply International Inc
Publication of DE3854652D1 publication Critical patent/DE3854652D1/de
Application granted granted Critical
Publication of DE3854652T2 publication Critical patent/DE3854652T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C3/00Dental tools or instruments
    • A61C3/02Tooth drilling or cutting instruments; Instruments acting like a sandblast machine
    • A61C3/025Instruments acting like a sandblast machine, e.g. for cleaning, polishing or cutting teeth
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/20Power-driven cleaning or polishing devices using ultrasonics
DE3854652T 1987-04-21 1988-03-28 Schaltkreis in einem zahnärztlichen Handstück. Expired - Fee Related DE3854652T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/040,649 US4820152A (en) 1987-04-21 1987-04-21 Single multi-function handpiece for dental instruments

Publications (2)

Publication Number Publication Date
DE3854652D1 DE3854652D1 (de) 1995-12-07
DE3854652T2 true DE3854652T2 (de) 1996-06-20

Family

ID=21912162

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3854652T Expired - Fee Related DE3854652T2 (de) 1987-04-21 1988-03-28 Schaltkreis in einem zahnärztlichen Handstück.
DE8888104988T Expired - Fee Related DE3880015T2 (de) 1987-04-21 1988-03-28 Mehrfunktionshandstueck fuer zahnaerztliche instrumente.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE8888104988T Expired - Fee Related DE3880015T2 (de) 1987-04-21 1988-03-28 Mehrfunktionshandstueck fuer zahnaerztliche instrumente.

Country Status (10)

Country Link
US (1) US4820152A (de)
EP (2) EP0454188B1 (de)
JP (1) JP2862873B2 (de)
AT (2) ATE129624T1 (de)
CA (1) CA1333451C (de)
DE (2) DE3854652T2 (de)
DK (1) DK173428B1 (de)
ES (2) ES2071600T3 (de)
FI (1) FI881835A (de)
NO (1) NO881699L (de)

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NO881699L (no) 1988-10-24
NO881699D0 (no) 1988-04-20
DK212688D0 (da) 1988-04-19
ATE87810T1 (de) 1993-04-15
US4820152A (en) 1989-04-11
DE3880015D1 (de) 1993-05-13
DE3880015T2 (de) 1993-09-16
ATE129624T1 (de) 1995-11-15
DK212688A (da) 1988-10-22
EP0294548B1 (de) 1993-04-07
ES2071600T3 (es) 1996-01-16
EP0454188B1 (de) 1995-11-02
FI881835A (fi) 1988-10-22
DK173428B1 (da) 2000-10-16
EP0294548A1 (de) 1988-12-14
ES2071600T1 (es) 1995-07-01
EP0454188A3 (en) 1992-02-12
FI881835A0 (fi) 1988-04-19
JP2862873B2 (ja) 1999-03-03
DE3854652D1 (de) 1995-12-07
CA1333451C (en) 1994-12-13
ES2041280T3 (es) 1993-11-16
JPS63296747A (ja) 1988-12-02
EP0454188A2 (de) 1991-10-30

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