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Expired
Application number
GB22372/47A
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Individual
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Individual
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Publication of GB632538ApublicationCriticalpatent/GB632538A/en
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
Abstract
632,538. Dental handpieces. BJORKLUND, G. E. Aug. 12, 1947, No. 22372. Convention date, Aug. 12, 1946. [Class 81 (ii)] [Also in Group XXII] In a straight chuck handpiece the rotatable chuck socket 8 extends beyond the non-rotatable part of the casing 9 so as to allow the use of the shortshanked drills normally used with contra-angle handpieces. A swarf thrower ring 10 may be formed on the outside of the chuck. The chuck may be either of the jaw type for use with parallel shanked drills or tapered to receive the conical drills described in Specification 632,537.
GB22372/47A1946-08-121947-08-12Improvements in dental hand-pieces
ExpiredGB632538A
(en)