GB844580A - Improvements in or relating to handpieces for dental purposes - Google Patents
Improvements in or relating to handpieces for dental purposesInfo
- Publication number
- GB844580A GB844580A GB774/59A GB77459A GB844580A GB 844580 A GB844580 A GB 844580A GB 774/59 A GB774/59 A GB 774/59A GB 77459 A GB77459 A GB 77459A GB 844580 A GB844580 A GB 844580A
- Authority
- GB
- United Kingdom
- Prior art keywords
- air
- turbine
- handpiece
- rotor
- chuck
- 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
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
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/17—Socket type
- Y10T279/17957—Friction grip
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
844,580. Dental handpieces. KALTENBACH, A., and HOFFMEISTER, E. Jan. 8, 1959 [Jan. 9, 1958], No. 774/59. Class 81(2). A handpiece for a dental drill has an air turbine interchangeably mounted adjacent the nose part of the handpiece. An axial flow turbine is used in the embodiments described and in one form the rotor 8 is mounted on a spindle 7 carried in bearings 5, 6 and having a friction grip chuck 33 at its outer end. Air is directed into the rotor through oblique holes 16 in a fixed plate 15, the air being admitted through radial holes 28, a central tube 23 and a connecting stub 26. After passing through the rotor the air passes out through a second perforated disc 13 and radial holes 29 to the annular space 18 and thence through the interior space 30 of the handpiece to discharge orifices 31. A spring- loaded push rod 35 passes centrally through the handpiece and is used to engage a short rod 43 to press a burr out of the chuck 33. If the end cap 24 is unscrewed, the turbine may be drawn out bodily through the rear of the casing. In the construction shown, the rear of the turbine casing is centred by the end of the air tube 23 engaging a conical recess in a collar 20 but in a modified form there is no collar but the end of the tube passes into the centre hole of the disc 15 to centre it. A further form is also described in which the turbine rotor and chuck are carried in a ball bearing at each end of the assembly. In this case the air is admitted through the outer annular chamber of the handle and the exhaust air passes out through the central tube.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK0033789 | 1958-01-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB844580A true GB844580A (en) | 1960-08-17 |
Family
ID=7219838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB774/59A Expired GB844580A (en) | 1958-01-09 | 1959-01-08 | Improvements in or relating to handpieces for dental purposes |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3076267A (en) |
| CH (1) | CH367592A (en) |
| DE (1) | DE1069824B (en) |
| FR (1) | FR1220928A (en) |
| GB (1) | GB844580A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1279285B (en) * | 1962-03-05 | 1968-10-03 | Chirana Praha Np | Dental drill handpiece with air turbine drive |
| US3248792A (en) * | 1962-08-27 | 1966-05-03 | American Hospital Supply Corp | Air driven dental handpieces |
| FR2489138B1 (en) * | 1980-08-29 | 1985-11-29 | Micro Mega Sa | CONTRA-ANGLE HEAD WITH INTERCHANGEABLE CARTRIDGE |
| JPH0759237B2 (en) * | 1992-06-09 | 1995-06-28 | 正博 村瀬 | Internal pollution prevention handpiece |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE357117C (en) * | 1922-08-15 | Karl Martens | Hand drill with power drive | |
| US1419140A (en) * | 1919-08-15 | 1922-06-13 | Richard A Hutchinson | Needle-pointing machine |
| DE456128C (en) * | 1926-07-08 | 1928-09-15 | ||
| US2180993A (en) * | 1937-07-30 | 1939-11-21 | Emory J Monnier | Pneumatic motor |
| US2793437A (en) * | 1954-06-15 | 1957-05-28 | Florence H Wilson | Hydraulic dental spindle |
| US2799934A (en) * | 1955-12-01 | 1957-07-23 | Bowen & Company Inc | Dental drill |
| US2945299A (en) * | 1957-08-22 | 1960-07-19 | Carroll S Fritz | Dental handpiece |
-
0
- DE DENDAT1069824D patent/DE1069824B/de active Pending
-
1958
- 1958-12-11 CH CH6718258A patent/CH367592A/en unknown
-
1959
- 1959-01-02 US US784650A patent/US3076267A/en not_active Expired - Lifetime
- 1959-01-06 FR FR783384A patent/FR1220928A/en not_active Expired
- 1959-01-08 GB GB774/59A patent/GB844580A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1069824B (en) | 1959-11-26 |
| US3076267A (en) | 1963-02-05 |
| FR1220928A (en) | 1960-05-30 |
| CH367592A (en) | 1963-02-28 |
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