GB917975A - Improvements in or relating to driving means for instruments used in dentistry - Google Patents

Improvements in or relating to driving means for instruments used in dentistry

Info

Publication number
GB917975A
GB917975A GB647060A GB647060A GB917975A GB 917975 A GB917975 A GB 917975A GB 647060 A GB647060 A GB 647060A GB 647060 A GB647060 A GB 647060A GB 917975 A GB917975 A GB 917975A
Authority
GB
United Kingdom
Prior art keywords
motor
handpiece
housing
air
feb
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
GB647060A
Inventor
James Alfred Edward Harris
Arthur Michael Hodges
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.)
S Smith and Sons Ltd
S Smith and Sons England Ltd
Original Assignee
S Smith and Sons Ltd
S Smith and Sons England 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.)
Filing date
Publication date
Application filed by S Smith and Sons Ltd, S Smith and Sons England Ltd filed Critical S Smith and Sons Ltd
Priority to GB647060A priority Critical patent/GB917975A/en
Priority to DE1961S0037047 priority patent/DE1849777U/en
Publication of GB917975A publication Critical patent/GB917975A/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
    • A61C1/08—Machine parts specially adapted for dentistry
    • 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

Abstract

917,975. Dental engines. SMITH & SONS (ENGLAND) Ltd., S. Feb. 17, 1961 [Feb. 24, 1960], No. 6470/60. Class 81 (2). Means for driving a dental handpiece comprises a housing enclosing an electric motor and to which the handpiece may be attached. In the embodiment described the motor is a two-phase four-pole motor 5 driven from a static inverter 30 the output frequency of which may be adjusted. It is enclosed within a cylindrical casing 1 so that its spindle 8, carrying a driving dog 9, projects into a hollow extension 4 to which the handpiece may be connected. Below the motor housing there is a hollow extension 12 which receives a water spray tube 16 leading to an outlet connection 18 for the handpiece and a compressed-air pipe 15 leading to a similar connection not shown. A portion of this air supply is led off by a narrow bore tube 22 which directs a stream of air around the space 7 between the motor and the housing 1, this air finally escaping through orifices 23.
GB647060A 1960-02-24 1960-02-24 Improvements in or relating to driving means for instruments used in dentistry Expired GB917975A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB647060A GB917975A (en) 1960-02-24 1960-02-24 Improvements in or relating to driving means for instruments used in dentistry
DE1961S0037047 DE1849777U (en) 1960-02-24 1961-02-23 DRIVE AND COOLING DEVICE FOR DENTAL HANDPIECES.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB647060A GB917975A (en) 1960-02-24 1960-02-24 Improvements in or relating to driving means for instruments used in dentistry

Publications (1)

Publication Number Publication Date
GB917975A true GB917975A (en) 1963-02-13

Family

ID=9815061

Family Applications (1)

Application Number Title Priority Date Filing Date
GB647060A Expired GB917975A (en) 1960-02-24 1960-02-24 Improvements in or relating to driving means for instruments used in dentistry

Country Status (2)

Country Link
DE (1) DE1849777U (en)
GB (1) GB917975A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324552A (en) * 1964-04-06 1967-06-13 Jacob A Saffir Dental handpiece
US3427720A (en) * 1963-10-25 1969-02-18 Herbert Berman Hand drilling apparatus
USRE30356E (en) * 1978-06-16 1980-08-05 Hand drilling

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514250A1 (en) * 1981-10-08 1983-04-15 Artus HANDPIECE WITH INTEGRATED MOTOR

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3427720A (en) * 1963-10-25 1969-02-18 Herbert Berman Hand drilling apparatus
US3324552A (en) * 1964-04-06 1967-06-13 Jacob A Saffir Dental handpiece
USRE30356E (en) * 1978-06-16 1980-08-05 Hand drilling

Also Published As

Publication number Publication date
DE1849777U (en) 1962-04-12

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