GB625955A - Improvements in dental engine hand pieces - Google Patents

Improvements in dental engine hand pieces

Info

Publication number
GB625955A
GB625955A GB7571/47A GB757147A GB625955A GB 625955 A GB625955 A GB 625955A GB 7571/47 A GB7571/47 A GB 7571/47A GB 757147 A GB757147 A GB 757147A GB 625955 A GB625955 A GB 625955A
Authority
GB
United Kingdom
Prior art keywords
sleeve
bearing
chuck sleeve
chuck
gear
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
GB7571/47A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB625955A publication Critical patent/GB625955A/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
    • A61C1/14—Tool-holders, i.e. operating tool holders, e.g. burr holders
    • A61C1/141—Tool-holders, i.e. operating tool holders, e.g. burr holders in an angled handpiece

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

625,955. Dental handpieces. BJORKLUND, G. E, March 19, 1947, No. 7571. Convention date, March 20, 1946. [Class 81(ii)] A dental handpiece of the type in which the tool is held in a chuck sleeve disposed at an angle to the driving shaft, the chuck sleeve being driven from the driving shaft through a gear on the sleeve located between bearings carrying the sleeve, is characterized in that the bearing between the gear and the tool point is adapted to take axial thrust whilst the bearing at the other end of the sleeve serves solely to take radial thrust. A gear casing 3 carries a split bush 11 which acts as an axial and radial bearing for chuck sleeve 7. A flanged portion of the bush cooperates with a flanged portion of the chuck sleeve 7, an axial thrust bearing thus being formed and the flange 12 also serving as a thrower ring for swarf &c.. The upper end of the chuck sleeve is journalled in a sleeve 10 which acts as a radial thrust bearing and may be made of bronze or similar bearing metal. Specification 625,954 is referred to.
GB7571/47A 1946-03-20 1947-03-19 Improvements in dental engine hand pieces Expired GB625955A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE625955X 1946-03-20

Publications (1)

Publication Number Publication Date
GB625955A true GB625955A (en) 1949-07-06

Family

ID=20313376

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7571/47A Expired GB625955A (en) 1946-03-20 1947-03-19 Improvements in dental engine hand pieces

Country Status (1)

Country Link
GB (1) GB625955A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999066854A1 (en) * 1998-06-25 1999-12-29 Microtech Improved collet assembly and manufacturing process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999066854A1 (en) * 1998-06-25 1999-12-29 Microtech Improved collet assembly and manufacturing process

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