GB1215765A - Pre-charged dental handpiece - Google Patents

Pre-charged dental handpiece

Info

Publication number
GB1215765A
GB1215765A GB1775268A GB1775268A GB1215765A GB 1215765 A GB1215765 A GB 1215765A GB 1775268 A GB1775268 A GB 1775268A GB 1775268 A GB1775268 A GB 1775268A GB 1215765 A GB1215765 A GB 1215765A
Authority
GB
United Kingdom
Prior art keywords
cup
paste
housing
spool
gearing
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
GB1775268A
Inventor
Eugene Wesley Lewis
Jack Hodgdon Mills
Fuller Warden
Bernard Floyd Mcnickle
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.)
Sherwood Medical Co
Original Assignee
Sherwood Medical Industries 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 Sherwood Medical Industries Inc filed Critical Sherwood Medical Industries Inc
Priority to GB1775268A priority Critical patent/GB1215765A/en
Publication of GB1215765A publication Critical patent/GB1215765A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • A61C17/005Devices for dental prophylaxis

Abstract

1,215,765. Tooth polishing dental handpiece. SHERWOOD MEDICAL INDUSTRIES Inc. 16 April, 1968, No. 17752/68. Heading A5R. A dental handpiece for cleaning and polishing teeth comprises a plastics housing 12 preloaded with an abrasive paste, a rotatable polishing cup 50, a drive shaft 22 for transmitting rotational motion to the cup, and a means for continuously transferring the paste from the housing to the cup during rotation of the cup. The paste may be ejected by an internally grooved piston 62 travelling on a helical tongue 64 of an axially offset drive shaft 22, with a passageway 42, and (40), Fig. 2 (not shown) between the interior of the housing and the interior of the cup. The coupling between the shaft and the cup may comprise bevel gear members 28, 46 and 48. A modified paste ejecting means may comprise a wiping blade (106) Fig. 3, (not shown) connected to a drive shaft (100), communication between the interiors of the housing and the cup being by passageways (94), (96), and (98). A further modification comprises a curved blade (136), Figs. 7 to 9, (not shown) connected between a drive shaft and the gearing, for expelling the paste from the housing, the gearing: comprising a spool (140) connected to the end of the blade, the spool having projections (144) engaging depressions in the top of the cup. Paste is transferred from the housing to the cup via a notch (158) in the spool, and a chamber (160) enclosing the spool. In a further embodiment the gearing comprises a flexible helical shaft, Figs. 10 and 11 (not shown) connecting the blade to the cup. The entire handpiece may be disposable, or the head portion containing the cup and gearing may be retained and a fresh housing, preloaded with paste, may be used.
GB1775268A 1968-04-16 1968-04-16 Pre-charged dental handpiece Expired GB1215765A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1775268A GB1215765A (en) 1968-04-16 1968-04-16 Pre-charged dental handpiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1775268A GB1215765A (en) 1968-04-16 1968-04-16 Pre-charged dental handpiece

Publications (1)

Publication Number Publication Date
GB1215765A true GB1215765A (en) 1970-12-16

Family

ID=10100598

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1775268A Expired GB1215765A (en) 1968-04-16 1968-04-16 Pre-charged dental handpiece

Country Status (1)

Country Link
GB (1) GB1215765A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006065453A1 (en) * 2004-12-15 2006-06-22 Andre Michaelian Dental device and method of use
US8353700B2 (en) 2004-12-15 2013-01-15 Andre Michaelian Dental device and method of use

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006065453A1 (en) * 2004-12-15 2006-06-22 Andre Michaelian Dental device and method of use
US7833014B2 (en) 2004-12-15 2010-11-16 Andre Michaelian Dental device and method of use
US8353700B2 (en) 2004-12-15 2013-01-15 Andre Michaelian Dental device and method of use

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